轮机大管轮英语真题48期

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轮机英语48805带答案

中华人民共和国海事局2009年第5期海船船员适任统考试题（总第48期）科目：轮机英语试卷代号：805一、单项选择题1. Diesel engines classified as reciprocating internal combustion engines because they____A. use energy from fuel burned outside their cylindersB. burn fuel in a combustion chamber that moves back and forthC. burn fuel in a chamber where its energy moves a piston up and downD. a continuous combustion process to impart rotary motion to the pistons2. The abbreviation “MIP” stands for _____A. middle indication pressureB. mean indicated pressureC. mean indicated pitchD. middle indicated power3. The term used to express the ignition quality of a particular fuel is _____A. cetane numberB. octane numberC. ignition index numberD. volatility point4. The period when both inlet valves and exhaust valves are open is referred to as____A. valve loopB. valve uniflowC. valve overlapD. valve grinding5. Which of the following statements represents the function of the compression ringsinstalled at the top of a diesel engine piston?A. Control the amount of lube oil burned in the combustion chamberB. Transmit heat from the piston to the cylinder linerC. Prevent damage to ring groove inserts by action as a heat dam.D. Dissipate combustion chamber gas pressure by channeling it through the ring gap.6. The gas loads on the engine structure are constrained by means of hydraulically preloaded_____Which connect the bed plate, frame sections and cylinder jackets into a single unit.A. connecting rodsB. mean bearingC. columnD. the rods7. ______of different thickness are inserted between the shells to enable adjustment of the bearing clearness.A. ScrewsB. FilmsC. DisesD. Shims8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have thedisadvantages of ____A. less even torqueB. higher cylinder head temperaturesC. fewer power stroke per revolutionD. greater weight/size requirements9. During the fuel imection period, fuel pressure must exceed cylinder gas pressure to _____A. ensure penetration and distribution of the fuel in the combustion chamberB. ensure the needle valve is flushed clean during each injectionC. prevent combustion gas blowback into the open needle valveD. prevent reflected pressure waves when the needle valve closes10. The upper piston rings in large, slow-speed, two-stroke cycle diesel engines are mosteffectively lubricated by oil ____A. fed from mechanical lubricatorsB. thrown off from the main bearingsC. supplied form wick fed drip lubricatorsD. flow from a centrifugal banjo oiler11. In a diesel engine closed freshwater cooling system, the amount of coolant flowing through the heat exchange is controlled by the _____A. section pressure regulatorB. thermostatic bypass valveC. sea water temperatureD. water level in the expansion tank12. The purpose of an after-cooler is to ______A. reduce the turbocharger operation temperatureB. increase the pressure of the inlet airC. increase the density of the inlet airD. reduce the blower operation temperature13. Compressed air is supplied by air compressors to _____A. the air receiversB. the starting valvesC. the cylinder coversD. the distributors14. _____supplies pilot air to control the cylinder air start valves.A. An air receiversB. An indicator cockC. An air distributorD. A safety valve15. Thermocouple pyrometers are used on large, main propulsion diesel engines toindicate the temperature of the ______A. cooling water leaving each cylinderB. fuel oil entering the injectorC. exhaust gases at various locationsD. lube oil at the bearing suppliers16. After starting a diesel engine, which of the listed operating conditions should bechecked first?A. Air box pressureB. Lube oil pressureC. Exhaust temperaturesD. Raw waterpressure17. A device which functions to bring a diesel engine to a full stop to protect it fromdamage is known as a/an _____A. torque limiterB. over-speed tripC. over-speed governorD. load limitgovernor18. Air cocks, usually positioned at the ______in a circulating systems, is used to get ridof the air in the system.A. bending jointB. expansion tankC. weldD. the highest point19. Some medium and high-speed diesel engines require reduction gear units to provide auseful propeller speed. In most reduction gears, the bull gear____A. must churn the oil in the sumpB. is connected to the propeller shaftC. is driven at the highest RPMD. compensates for alignment variations between the engine and pinion gear20. Which of the following statements concerning fire-tube boilers is correct?A. combustion gases flow through the tubesB. flames impinge on the tubesC. combustion occurs in the tubesD. water flows through the tubes21. A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaustsystem, may be used to avoid boiler______A. corrosion at low engine loadsB. erosion at high engine loadsC. overload at high engine loadsD. scaling at all exhaust temperature22. The amount of chlonde content in the water of an auxiliary boiler can be reduced by _____A. adding hydrazineB. blowing down the boilerC. adding phenolphthaleinD. adding a sulfite chloride scavenger23. Failure of the burner flame in an automatic auxiliary boiler would probably be a result of ______A. water in the fuel oilB. broken high tension leadsC. incorrect electrode settingD. full fuel pressure at the nozzle24. Boiler water hardness is increased by _____A. zero alkalimty to the waterB. scale forming salts in the feedwaterC. dissolved gases in the waterD. improper operation of the DS heater25. A screw pump belongs to ______according to its working principleA. recipmcating pumpsB. positive displacement pumpsC. dissolved gases in the waterD. centripetal pumps26. A centrifugal pump operating against a closed discharge valve has a/an_______A. capacity of 100%B. efficiency of 0%C. internal slippage of 0%D. shut off horsepower rating of 100%27. Before disconnecting a joint in a pipeline, you should______A. determine the size of the gasketB. hang a bucket under the jointC. have a first aid kit on handD. be sure no pressure exists in the line28. It is possible to mount a double suction centrifugal pump impeller with the vanesfacing in the wrong direction. This would cause the pump ______A. head capacity to improveB. discharge to be reversedC. efficiency to decreaseD. slippage to decrease29. If a centrifugal pump is driven by a constant speed electric motor and produces adischarge pressure less than designed, the cause is probably_____A. excessive pump speedB. excessive suction headC. worn wearing ringsD. gross pump misalignment30. Properties of a good refrigeration oil include_______A. low wax contentB. high pour pointC. high viscosityD. low wax content, high pour point, high viscosity31. The _____ only allows for adjustment of temperature in each room by the occupantmanually controlling the air volume admitted.A. central air conditioning systemB. high velocity systemC. low velocity systemD. single duct system32. The process of adding moisture to air to increase the relative humidity is known as______A. sublimation B desiccation C. humidification D. miniaturization33. Sludgy may form in the crankcase of an air conditioning compressor as a result of _____A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or floc point34. Which of the equipment listed is most effective in processing bilge slops for overboard dischargeA. a 100 PPM oily water separatorB. assembling the lube oil purifier as a separator and aligning it to the bilge overboardC. a 15 PPM oily water separatorD. a magnetic duplex strainer35. When started, a complete oily water separating unit is first filled _____. The oily watermixture is then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water36. Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler37. Concerning the incinerator’s operation, which of the following is not correct?A. scavenging time should be more than 30 seconds before ignitingB. the oil temperature of waste oil tank is 80-100℃C. first igniting the incinerator with diesel oil when the temperature of hearth is about600℃, the waste oil is drawn in.D. the ash from incinerator can be dumped into sea no distance limitation38. Bacteria which live ____are said to be aerobicA. in the presence of oxygenB. without oxygenC. in the presence of nutritionD. without nutrition39. For a purifier changing to a gravity disc with smaller hole diameter will move theinterface towards the ______A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface40. To ensure lube oil purifier working in normal condition, the interval between twosludgy discharging should not exceed ____ hours.A. 2B. 4C. 5D. 641. Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?A. Contamination of the lube oil by emulsification will resultB. The lube oil will not be subjected to the proper centrifugal forceC. The lube oil will overheat and flashD. Oil will discharge from the heavy phase discharge port and be wasted42. A vacuum is initially created in a flash type distilling plant by _____A. the flashing of the feed waterB. the condensation of the saltwater feedC. air ejectors, eductors, of a separate vacuum pumpD. condensation of the distillate43. On which of the following heated surfaces of a flash type evaporator would you be more likely to find soft scale formation?A. Feed-water heater internal tube surfacesB. Internal distillate cooler tubesC. Flash chamber vertical surfacesD. pressure control valve44. What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve45. Another name for the “swash plate” in the variable delivery pump is _____A. tiltable discB. gravity discC. distributing discD. catch plate46. The drive motor will have a brake arranged to fail-safe, i.e. it will ___the load if powerfails or machine is stopped.A. liftB. putC. takeD. hold47. If the pump for a hydraulic anchor windlass is over heating, the cause may be_____A. increased pump speedB. excessive pump discharge pressureC. too low of a tilting box angleD. low pump speed48. When the power is shut off, the wire____A. becomes slackB. can not be paid out unless the brake is overhauled or recover wire unless manually operatedC. will be let out because the brake is out of workD. may be pay out due to no power49. An additive used to improve the ability of a lube oil to reduce friction is known as a/an ____A. suppressant additiveB. dispersant additiveC. extreme pressure additiveD. viscosity improver additive50. Strainers are commonly used in hydraulic systems to _____A. protect the pump from fine soluble contaminantsB. prevent solid particles from entering the pumpC. prevent solid particles from entering the filterD. protect the directional control valves51. Current changing in direction and rising and falling in value is ____A. A.C.B. D.C. C. generatorD. fresh water generator52. The magnetic field is provided by electromagnet, so arranged that adjacent poles have_____A. opposite polarityB. the same polarityC. negative polarityD. positive polarity53. Prior to closing the breaker when paralleling two AC. generators, the recommended practice is to have the frequency of the incoming machine_____A. slightly less than the line frequencyB. the same as the line frequencyC. slightly greater than the line frequencyD. have nothing to do with the lien frequency54. The power factor at which a paralleled A.C. generator operates is usually adjusted by the ____A. connected loadB. prime mover speedC. field excitationD. generator’s rated voltage54. When you are making a high potential test on a piece of repaired electrical machinery,a rise in leakage current indicates ________A. good insulationB. bad insulationC. high insulation power factorD. a high slot discharge factor56. ______is not a part of the main switchboard on board.A. BusbarB. Load panel of main generatorC. Paralleling panelD. Shore connection box57. Usually, emergency electricity supplies to _____on boardA. cargo winchB. windlassC. steering gearD. main air compressor58. The ground terminal of a starter should be connected to _____A. the common ground pointB. the starter’s frameC. the communicatorD. the starter’s mounting bolts59. The separate supplies are connected in either star or delta formation. The starformation is most commonly used and requires ______ slip-rings on the alternator.A. twoB. threeC. fourD. five60. As a general rule, the first troubleshooting action to be taken in checking faulty electriccontrol devices is to ________A. draw a one line diagram of the circuitryB. test all fuses and measure the linevoltageC. take megger readingsD. insulate the apparatus from ground61. When measuring AC current flow, you must always connect the meter ______A. in series with the power source and loadB. in parallel with the power source and loadC. insuring correct polarityD. using the lowest range possible to prevent instrument damage62. If a small electric motor is immersed in salt water it should be＿＿＿＿.Ⅰ. washedwith free water;Ⅱ.dried in an ovenA. only ⅠB. only ⅡC. both Ⅰand ⅡD. neitherⅠnor Ⅱ63. “AMIDSHIPS”refers to ________A. back of vesselB. the middle portion of a shipC. a backward movement of a vesselD. across the ship, at right angles to the fore-and-aft centerline64.______is the main cause to the damage of engine parts and excess wearingA. overloadB. the odds of the loadC. the default of engine partsD. overload and the odds of the load65. After “finished with engine”, which of the following cannot be shut off by the dutyengineer?A. fuel oil booster pumpB. the main starting valveC. the sea chestD. the main cooling sea water pump66. Which of the following is NOT a recommended safe practice?A. Securing equipment against slipping or driftingB. Operating machinery at its recommended speedC. Repairing loose handles on tools before usingD. Using tools for purposes for which they are not designed67. A class “C” fire would occur in _____A. beddingB. pipe insulationC. paintD. a generator68. If a fire occurs in the boiler room as a result of a leaking fuel line, you shouldFIRST______A. notify the engineer on watchB. isolate and secure the pipingC. throw sand on the fireD. extinguish the fire using a combination nozzle with applicator69. Which of the following statements is true concerning carbon dioxide when used as afire extinguishing agent?A. Carbon dioxide is corrosive when exposed to fireB. Carbon dioxide should be applied slowly to a large engine room fireC. Its total cooling effect is far greater than waterD. Its smothering effect is excellent for class B fires70. As a duty engineer, as soon as you hear the fire emergency signal, you should ensure that the _______.A. ring buoys are thrown overboardB. engines are stoppedC. fire pumps are startedD. life preserves have been issued to everyone71. When administering artificial respiration, it is of the utmost importance to ______A. use the mouth-to-mouth methodB. clear airwaysC. use rhythmic pressure methodD. check the injured person’s hearbeat72. What is the harmful effect of sulfur in a fuel?A. It causes excessive smoking and soot at low firing ratesB. It doesn’t readily burn when combined with oxygenC. It clogs fuel oil strainers more oftenD. It forms a corrosive acid when mixed water or water vapor73. _____, where minor repairs are carried out with a ship in service, often during a stay inport. This may be remote from a ship repair site.A. V oyage repairsB. Routine dockingC. Damager repairsD. Conversion74. When ship in the dock repairing, engine department should emphasize on theinspection of ______.A. sea valve chest and thrusterB. steering gear and the shaft systemC. sea water systemD. fresh water system75. The additional mark________ in the Classification Certificate for Machineryrepresents that personnel are watching at engine assembly control station and monitoring all machinery and electronic devices.A. BRCB.MCCC.AUT-0D.AUT-176. Each completed page of the Oil Record Book must be signed by the _____A. engineer on watchB. chief engineerC. chief mateD. master77. The International Oil Pollution Prevention Certificate required by MARPOL is issuedto Chinese flag by the ____A. IMOSCGD.PICC78. If________, the PSCO should proceed to a more detailed inspection.A. the PSCO’s general impression confirm a good standard of maintenanceB. the certificates are validC. the PSCO believes the ship doesn’t meet the requirementsD. the PSCO can’t find deficiencies at first glance79. The Port State Control officer may witness a fire drill carried out by the crew assignedto these duties on the ______A. navigation log bookB. engine room log bookC. oil record bookD. muster list80. STCW78-95 Convention states that officer in charge of the engineering watch is the_______ representativeA. ship-owner’sB. master’sC. chief engineer’sD. manager’s81. In the event of minor emergencies when the machinery spaces unattended,___________will be informed of malfunctions in the machinery by his cabin monitor.A. the chief engineerB. the engineer on cabin watchC. the bridge officer on watchD. the master82. At an unsheltered anchorage the chief engineer officer shall consult with the masterwhether or not to ______A. do engine repair workB. clean sea water filterC. maintain an underway watchD. take bunkering83. The Pollution Prevention Regulations require that all oil spills in United States watersbe reported immediately to the ______A. local port authorityB. corps of engineersC. U.S. coast guardD. statepollution board84. When the garbage is mixed with some discharges having different disposal ordischarge requirements, ________shall applyA. any requirement appointed by the PSC officerB. the most suitablerequirementC. the most stringent requirementD. no requirement85. According to the SOLAS convention, the engine room emergency bilge water suctionshould connect with _____A. the main S.W. pumpB. the ballast pumpC. the air-conditioning water pumpD. the main S.W. pump or ballast pump that have the biggest output86. The purpose of the ISM Code is to provide ______standard for the safe managementand operation of chips and for pollution prevention.87. ______means the level for which appropriate additional protective security measuresshall be maintained for a period of time as a result of heightened risk of a security incident.A. Security level 1B. Security level 2C. Security level 3D. Securitylevel 488. The installation and prevision of fire fighting equipment is mainly subject to ______A. ISM CodeB. ISPS CodeC. JBC CodeD. FSS Code二、关联题（关联提题干下有4个小题，每小题4个选项）第一组：In a closed fresh water system, the engine jackets, the heat exchanger and the circulating pumps form a continuous circuit which is not open to the atmosphere. The cylinder jacket cooling water after leaving the engine passes to a sea water circulating cooler (heat exchanger) and then into the jacket water circulating pumps. It is then pumped around the cylinder jackets, cylinder heads, exhaust valves and turbo-blowers. However, provision has to be made for the expansion of the water due to the increase in temperature and due to small amounts of air which may enter the system and become entrained and for water make-up due to leakages. These are met by a small head tank which is open to the atmosphere and placed at a higher level than any other point in the system so that the small changes in volume can be accommodated by changing the level of the free surface of the water in the tank. The head tank is generally connected into the system at the pump suction, as this minimizes the chance of air being draw into the system at the pump. The minimum height of the head tank may be based on maintaining pressure of fresh water in the heat exchanger above that of the seawater to ensure that in the event of a small internal lock developing seawater cannot enter the fresh water system. Alternatively, it may be based on the need for a minimum pressure to be maintained within the jackets to avoid cavitations effects. The closed systems usually need vents if steam pockets or air locks are not to cause trouble. Vent pipes of small-bore tube are lead from any local high point in the system to the top of the head tank for the release of air from the cooling water. A heater in the circuit facilitates warming of the engine prior to starting by circulating hot water. The temperature of the water entering the engine jackets is regulated by means of a by-pass across the jacket water cooler. The proportions of water passing through the cooler, or bypassing it are controlled by a three-way valve. The temperature is usually adjusted to maintain a constraint outlet water temperature from the engine regardless of the load or speed or the temperature of the seawater. The piston cooling system may be an open system which employs similar components with the closed system, except that a drain tank is used instead of a head tank and the vent are then led to a hopper or tundish at the high point in the machinery space. The hopper serves as a visual flow indicator. A separate piston cooling system is used to limit any contamination from piston cooling glands to the piston cooling system only.89. The loop of the jacket cooling water is ______A. engine----heat exchanger----circulating pumps-----engineB. heat exchanger-----engine----circulating pumps----heat exchangerC. circulating pumps----heat exchanger-----engine-----circulating pumpsD. circulating pumps----engine-----heat exchanger----head tank90. A small head tank is provided in the closed jacket cooling water system for _____A. water expansionB. water make-upC. warming of the engineD. water expansion and make-up91. The head tank is connected to the closed circuit at _____A. engine inletB. pumps inletC. heat exchange inletD. engine outlet92. The jacket water temperature is regulated to maintain a constraint temperature of ___A. engine inletB. pumps inletC. heat exchanger inletD. engine outlet第二组Following a security incident, in which the response measures outlined in the Ship Security Plan (SSP) have been activated, there will be a thorough review of their effectiveness and details will be made available, on request, to persons duly authorized by the Ship’s Flag State Administration. The Ship Security Plan is not subject to detailedinspection (other than confirming its existence on the ship) by duly authorized officials of a port State unless there are “clear grounds” to believe that the ship as not in compliance with the requirement of SOLAS or the ISPS Code, and the only means to verify or rectify the non-compliance is to review the relevant sections of the Plan. In such cases, access to the Restricted parts of the Plan relating to the non-compliance is exceptionally allowed, but only with the consent of the Flag State, or the master, If the master, in his professional judgment, believes that such “clear grounds”exist, and allowing access to relevant sections of the Restricted part of the Plan might resolve the situation, such access can be exceptionally granted. However, this should be immediately reported by the ship to the Company Security Officer (CSO). If access to the Restricted part of the Plan is denied by the master, this should be immediately reported by the ship to Company Security Officer for guidance and reference to the Flag State.The Confidential part of a SSP cannot be subject to non-flag State inspection unless otherwise agreed by the contracting governments concerned. Any such request or demand by ort state officials to view sections of the confidential part of the Plan will be immediately reported by the ship to the Company Security Officer for guidance and reference to the flag State before any details are revealed to non-flag State officials. The Confidential provisions, which from an integral part of this Plan, are held by the Ship Security Officer (SSO)93. After security incident, the revision of the SSP will made by ______A. the SCOB. the SSOC. persons duly authorized by the Ship’s Flag State AdministrationD. information not given94. Which statement is True?A. The Port State Control Officer has no right to check a SSPB. The M aster has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on boardC. The Confidential part of a SSP can never been subject to non-flag StateD. Even the flat State has no right to check the SSP thoroughly95. The Restricted parts of a SSP are kept on board by ______A. the CSOB. the SSOC. the Flag StateD. the master96. After the SSP being checked by a duly authorized officials of a port State, whom should be reported to by the ship immediately?A. Port StateB. Flag stateC. The CSOD. The Administration。

轮机员英语面试(轮机长、大管轮、二管轮、三管轮适用)

轮机员英语面试（轮机长、大管轮、二管轮、三管轮适用）1、Can you measure oil level? Which method is right, to measure ullage height or to measure oil depth?Both will do. In practice, to measure ullage height is more specific than to measure oil depth. To measure ullage height, we should know the standard height of oil tank. In common practice, we usually measure the oil depth.2、Could you tell the working parts of a gas welding gun?Yes, sir. The working parts include nozzle, oxygen valve, acetylene valve, oxygen supply, acetylene supply. In addition, filler rod is used to fill in welded joint when it melts.注：焊枪是轮机部常用的维修工具，工作时这些部件名称经常涉及到。

3、How to pump out bilge water in the engine room?Pump bilge water into sludge tank. Then pump bilge water into oily water separator. Enquire master or deck officers on duty to pump out at appropriate water. The proportion should not beyond 15 PPM.机舱排污水程序可表述为把污水排到污水集中柜内，再通过油水分离器在允许排放区域按含油量小于15 PPM排放。

大管轮轮机英语新题

一、汉译英1、舵机的两套径向柱塞泵需检修，泵的滚珠轴承及全部密封圈如有必要需换新（备件由船上提供）。

检修中发现的其他损坏部件需修复或换新。

装复后在大管轮在场的情况下进行运转实验。

检修报告一式三份送交轮机长。

Two sets of radial piston pumps of the steering gear to be overhauled, if necessary, the ball bearings and all seal rings to be renewed with ship's spares. Any part if found damaged to be remedied or renewed. After refitted in order running test to be carried out in presence of second engineer. Reports for overhaul of pumps in triplicate to be handed over to chief engineer.2、舵机是船舶关键设备之一，其主要作用是控制船舶航向。

开航前，值班轮机员应会同值班驾驶员对舵，以确保船舶航行的安全。

驾驶台与舵机室的应急通讯系统也应保持良好工作。

The steering gear is one of the key important services in the ship and its main function is to control the ship's course. Prior to a ship's departure from any port the steering gear should be tested by duty engineer and duty officer to ensure the safety of a ship. The emergency communication system between the bridge and the steering gear compartment should also be kept in good order.3、请给船舶供应商写一物料订购单，要求供应商在“万华”轮10月5日离开新加坡之前供应下列物料：（1）石棉手套100双（2）直径50mm紫铜棒一根(2m长)（3）乙炔两瓶，15公斤/瓶（4）直径4mm不锈钢电焊条10公斤（5）燃油改良剂5桶，30升/桶Store Order ListMV. WanHuaPort of SingaporeOct. first, 2006 To: Shipchandler Co.Dear Sirs,Please supply our vessel MV. WanHua with the following stores prior to leaving Singapore on fifth, Oct.(1)Asbestos glove 100pcs(2)Copper stick 1pc, Φ50mm,2m in length(3)Acetylene 2btls, 15Kg/btl(4)Stainless steel electrode 10Kgs, Φ4mm(5)Improver for fuel combustion 5barrels,30litres/barrelThank you very much.Yours faithfullySigned by_________4、坞修时将螺旋桨轴抽出检查测量，并换新首尾密封装置的密封圈。

轮机大管轮英语真题49期

中华人民共和国海事局2010年第5期海船船员适任证书全国统考试题(总第46期)科目：轮机英语试卷代号：819适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至82题，每题1分，第83题至94题，每题1.5分。

一、单项选择题：1. The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is .A. they operate between 150 and 450 rpmB. they are connected to the propeller by gearingC. their smaller size and weightD. they can be connected directly to the propeller without gearing2. The SMS should provide for specific measures aimed at promoting the of equipment or systems, the sudden operational failure of which may result in hazardous situations.A. visibilityB. abilityC. reliabilityD. capability3. If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two-stroke/cycle diesel engine will develop approximately .A. the same indicated horsepower as a four-stroke/cycle engineB. twice the indicated horsepower as a four-stroke/cycle engineC. one half the indicated horsepower as a four-stroke/cycle engineD. one power stroke for every two crankshaft revolutions4. The desirable properties of a marine fuel oil should include .A. high flash point and high viscosityB. low flash point and high viscosityC. low heating value and high sulphur contentD. high heating value and low sulphur content5. The plunger in a jerk pump is rotated until the release port is uncovered. If the port remains uncovered all of the time, which of the listed operations will occur?A. No fuel will be delivered.B. The maximum effective stroke will be attained.C. The fuel delivered to the cylinder will be excessive.D. The injection nozzle will overheat and carbonize.6. In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the .A. crossheadB. crankpinC. crank journalD. gudgeon pin7. Due to action of pistons some relative motion between parts in contact in the coolant supply and return system must occur.A. reciprocatingB. rotatingC. runningD. removing8. What is the function of the after-coolers installed in the diesel engine air intake system?A. Decrease the air densityB. Increase the exhaust temperatureC. Decrease the lube oil temperatureD. Increase the air density9. Diesel engines are started by supplying into the cylinders in the appropriate sequence for the required direction.A. cooling waterB. compressing airC. compressed airD. cylinder oil 10. If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will .A. have a larger than normal dead bandB. produce excessive speed response to a load changeC. respond slowly to any change in engine loadD. stabilize engine speed at the new governor setting11. By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a .A. tachometerB. pyrometerC. dynamometerD. calorimeter12. The most crucial time for any bearing with regards to lubrication is .A. during low loadsB. after proper oil viscosity is reachedC. during startingD. after cleaning filters13. For most diesel propulsion and generator engines, the over-speed trip device will stop the engine by .A. moving the governor control to stopB. shutting off the lubricating oil supplyC. tripping the governor emergency stop leverD. shutting off the fuel supply14. For a continuous operation diesel engine, a duplex filter unit would be the best arrangement because .A. changing filter elements would not interrupt engine operationB. filtering occurs twice in each pass of oil through the systemC. clogging will not occurD. dropping pressure is half of that through a single filter unit15. A crack in a cylinder liner can be caused by .A. worn piston ringsB. installation of undersized sealing ringsC. operating the engine at low loadsD. restricted cooling water passages16. Low compression in a diesel engine could be caused by .A. worn or broken cylinder liner sealing ringsB. high cooling water temperatureC. worn or broken piston ringsD. low fuel oil pressure17. If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the .A. fuel line connections to the cylinder injection valvesB. gasket surfaces of the fuel oil filtersC. discharge fittings of the fuel injector pumpsD. suction side of the fuel oil transfer pump18. If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the .A. cylinder compression pressure may not be high enoughB. cylinder compression temperature may be too highC. fuel oil injection pressure may not be high enoughD. scavenge and purge process is incomplete19. The main propulsion diesel continues running after you try to shut down. You should now attempt to .A. stop the fuel oil booster pumpB. engage the jacking gearC. secure the lube oil pumpD. shut off the fuel at the settling tank20. If an auxiliary diesel engine coolant temperature is higher than normal, but the thermostat is determined not to be defective, you would suspect a/an .A. cavitation erosion in the water jacketsB. excess corrosion inhibitor in the coolantC. dirty jacket water coolerD. defective turbocharger21. Crankcase explosions in propulsion diesel engines result from ____.A. the splashing of lubrication oil by the crankshaftB. the dilution of crankcase oil with particles of combustionC. broken fuel lines spraying oil on the crankcaseD. the ignition of unburned fuel and air in the crankcase22. If the engine does not start on air, it may be due to .A. low compression of the fuel pumpsB. incorrect timing of fuel pumpsC. the starting air valves stuckD. air-locks in fuel oil pipeline.23. If some of the cylinders are not firing, the ones affected may be determined by watching .A. the exhaust temperatureB. the exhaust pressureC. the governorD. the fuel flow meter24. When transmitted by a reduction gear, diesel engine speed is reduced and the torque available for work .A. remains the sameB. is reducedC. is increasedD. is eliminated25. A thrust bearing is used with a propulsion diesel engine to ____.A. control axial movement of the crankshaftB. transmit engine thrust to the propeller shaftC. absorb vibrations in the propeller shaftingD. prevent propeller thrust from being transmitted to the hull26. Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed ___.A. apparent slipB. true slipC. pitchD. propulsive efficiency27. Cold weather starting of a diesel engine is more difficult than warm weather starting due to .A. use of low viscosity oil in cold weatherB. increased moisture content of inlet air in cold weatherC. increased drag of pistons and bearings due to increased oil viscosityD. higher compression pressures reached due to smaller clearances existing in the engine during cold weather28. While sailing in ballast under normal weather and sea condition, the basic parameter which is used to restrict the fuel injection of main engine is .A. the exhaust temperatureB. the speed of main engineC. the turbine rotation speedD. the power of main engine29. The bearing of tailshaft sealing equipment which adopts the oil nature circulation is hot, the reason is .A. the rotate speed fluctuationB. the ventilation tube cloggedC. the main engine accelerate so fastD. stormy waves30. Moisture is removed from a refrigeration system by .A. bleeding refrigerant from the condenserB. opening a drain petcock on the oil separatorC. condensing the water in the heat exchangerD. using a dehydrator cartridge31. When checking zinc plates in the refrigerating system condenser, you should .A. paint and insulate the plates to prevent corrosionB. renew the plates at each inspectionC. replace the zincs if deteriorated by 50%D. file the plates to change the negative value32. When replacing a thermostatic expansion valve sensing bulb, it is necessary to . A. apply a light film of oil to increase heat transferB. apply a light film of oil to prevent oxidationC. apply a heavy coating of grease to function as a heat sinkD. carefully coat the device with silicone sealant to reduce the effects of convective cooling33. If the refrigeration compressor crankcase is sweating, the cause may be due to .A. a shortage of refrigerantB. the compressor running continuouslyC. liquid refrigerant returning to the compressorD. the compressor short cycling on the high pressure cutout34. If a refrigeration compressor is short cycling on high head pressure, you should .A. purge the condenser if the waterside is dirtyB. check for proper water flow through the condenserC. increase the high pressure cutout settingD. reduce the cooling water flow35. If the head pressure of a reciprocating refrigeration compressor is excessive, .A. the relief valve should open before the high pressure cutoutB. the relief valve should open and allow the excess refrigerant to flow to the receiverC. the high pressure cutout switch should operate before the relief valve opensD. you should close the discharging valve36. Which factor determines the ring dam size for a fuel oil, tubular bowl type, centrifugal purifier?A. The viscosity of the fuel.B. The quantity of water to be removed from the fuel.C. The specific gravity of the fuel.D. The quantity of dirt to be removed from the fuel.37. If the bowl of a disk type centrifugal purifier when operated as a separator is not primed, the .A. oil has a tendency to emulsify in the bowlB. purifier will act as a clarifier at the discharge ringC. oil will be lost through the water discharge portsD. oil solids will be deposited only at the intermediate top disk38. Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors39. The delivery rate of an axial piston hydraulic pump is controlled by varying the position of the .A. tilting boxB. slide blockC. pintleD. reaction ring40. With reference to a two-ram actuating mechanism, which one of the following statement is FALSE?A. The rams work inside cylinders.B. The cylinders have glands sealing their open ends.C. The rams are connected to a cross-head.D. The cross-head is mounted on the rudder stock.41. While inspecting the steering system at sea, you should check for .A. air bubbles in the sight glassB. any leaks in the systemC. over-travel in the rudder angle indicatorD. lost motion in the rams42. An additive used to improve the ability of a lube oil to reduce friction is known as a/an .A. suppressant additiveB. dispersant additiveC. extreme pressure additiveD. viscosity improver additive43. If you install a new hydraulic hose in a hydraulic system, the hose must be long enough to allow for contraction to prevent .A. failure of the hydraulic hoseB. excessive flow through the lineC. friction in other areas of the hydraulic systemD. overheating of the hydraulic fluid44. The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the .A. prime mover speedB. exciter output voltageC. load on the alternatorD. number of poles45. An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as a .A. magnetic amplifierB. ship's service alternatorC. three-wire DC generatorD. saturable core reactor46. The operation of paralleling two alternators requires the voltages to be _____ and also in phase.A. zeroB. eliminatedC. differentD. equal47. The frequency of an AC generator is controlled by the .A. rheostatB. governorC. exciterD. capacitor48. The first requirement for logical troubleshooting of any system is the ability to .A. collect all available data on a casualtyB. recognize normal operationC. identify the probable cause of a symptomD. isolate the faulty component49. is supplied with electricity by main switchboard directly not through sub-board on board.A. Deck machineryB. Little power loadC. Some important load machineryD. Stationary submersible pump50. Usually, emergency electricity supplies to on board.A. Cargo winchB. WindlassC. Steering gearD. Main air compressor51. control system is one in which the control action is independent of the output.A. Feed backB. Negative feed backC. Close loopD. Open loop52. The is a crystal which, under pressure, produces an electric current which varies with the pressure.A. alternatorB. glass thermometerC. bourdon tubeD. piezoelectric pressure transducer53. Modern handheld digital tachometers operated by counting light pulses returned to the unit by .A. the tach generatorB. either the coupling or shaftC. a small bulb attached to the shaftD. a piece of reflective tape54. UMS stands for .A. ultra much spaceB. universal medium systemC. unit machined spaceD. unattended machinery space55. "Stand by an engine" means .A. "prepare to stop the engine"B. "assemble an engine on its bedplate"C. "make an engine ready for starting"D. "dismantle an engine"56. At the beginning of the watch the current operational parameters and the condition of all machinery should be verified and also the log readings should correspond with those .A. noted by the bridge officerB. told by last duty engineerC. observedD. in the instruction manual57. After the order ' ' is given, the air system is shut down, the turning gear put in.A. Finished With EngineB. Stop the EngineC. Stand-by EngineD. Slow-down Engine 58. Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?A. Signaling that all personnel are clear before lifting or lowering material.B. Examining material for sharp edges or protruding points before handling.C. Closing, tagging or securing valves that permit entrance of steam, water, or air into a fitting or other equipment.D. Throwing materials from high places to the deck.59. The class of fire on which a blanketing effect is essential to extinguish the fire is .A. Class 'A'B. Class 'B'C. Class 'C'D. Class 'D'60. Fire dampers prevent the fire spreading through the process of .A. convectionB. conductionC. radiationD. direct contact61. Portable carbon dioxide fire extinguishers should be sent ashore to be recharged .A. when the remaining charge volume is less than 90 percent of the required volumeB. at each inspection for certificationC. at each annual inspectionD. when the weight loss exceeds 10% of weight of charge62. While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?A. Make an entry in the official logbook.B. Open the master control valves on the fixed CO2 system.C. Start the fire pump and check discharge pressure.D. Secure auxiliary condenser overboard discharge.63. After a fire has been extinguished in a closed space, personnel may safely enter the spacewhen .A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartment's entranceB. a lifeline and explosion proof flash light are usedC. all smoke and toxic fumes are removed and an adequate oxygen supply is presentD. overhaul has been completed to remove any possible source of re-ignition64. When adding oil to a refrigeration system, precautions must be taken to ensure that .A. the compressor suction pressure is not too highB. all air is purged from the pump and charging fitting sC. the high pressure cutout switch is held open to prevent accidental startingD. the condenser is completely shutdown first65. The cooling water of the diesel engine should be treated with chemical, because it contains .A. alkaliB. acidityC. salinityD. impurity66. A (An) __ is the documentary attestation for the delivery of stores and spare parts.A. engine logbookB. delivery docketC. store bookletD. maintenance book67. Upon the completion of required tests, a ____ should be placed on each extinguisher, showing the date and the person who completed the tests.A. capB. discC. tagD. cover68. During the dock repair, when installing the tail shaft and propeller, _____ should be on the spot for supervising.A. chief engineerB. engineerC. captainD. any member of the engine department69. When carrying out mooring trial, if the M.E. can't start normally, you should .A. take a further inspection in the voyage trialB. check and repair, then retrialC. do as the surveyor's requirementD. retrial70. In the initial survey, compiles the survey report and fills in certificate.A. surveyorB. chief engineerC. administratorD. company superintendent71. The International Oil Pollution Prevention Certificate is valid for a period of .A. one year from the date of issueB. five years from the date of issueC. three years from the date of issueD. four years from the date of issue72. Which one is not the 'clear grounds' for a more detailed inspection?A. the master and the chief engineer are unable to communicate effectivelyB. serious corrosion on the hullC. damaged sanitary pumpD. one page missing in the oil record book73. "Insufficiency of manning or insufficiency of certification of seafarers" is an identification of a .A. substandard shipB. standard shipC. over-standard shipD. reference ship74. STCW 78/95 Convention shall apply to seafarers _____ on board seagoing ships entitled to fly the flag of a Party.A. servedB. servingC. surveyedD. surveying75. ____ should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.A. The watch keeping personnelB. The chief engineerC. The person on a bunker bargeD. The duty deck officer76. At an unsheltered anchorage the chief engineer officer shall consult with whether or not to maintain an underway watch.A. the engineer officer in charge of watchB. the deck officer in charge of watchC. the masterD. the chief mate77. In the event of a small bunker oil spill on deck occurring while bunkering, you should ____.A. wash down the area immediately with a fire hoseB. wash down the area with keroseneC. cover the area with absorbent materialD. cover the area with foam78. Which statement regarding garbage disposal is correct?A. Records for ground garbage disposal are not required when disposal into the sea occurs more than 25 miles offshore.B. Discharging or transfer of garbage while in port to a shore facility must be recorded.C. Maintaining records for the incineration of garbage aboard ship is not required.D. The recording of garbage disposal should include the approximate weight.79. SOLAS Stands for the International Convention .A. for the Safety of the Life at SeaB. for the Prevention from shipsC. on Standards of Training, Certification and Watchkeeping for SeafarersD. for the Control and Management of Ship's Ballast Water and Sediments80. The requirements of the ISM Code may be applied to .A. only oil tankersB. only passenger shipsC. only containersD. all kinds of ships81. Each ship shall carry on board a ship security plan approved by .A. the chief engineer officerB. the master of the shipC. the manager of the companyD. the Administration82. The installation and prevision of fire fighting equipment is mainly subject to .A. ISM CodeB. ISPS CodeC. IBC CodeD. FSS Code二、关联题（关联题题干下有4个小题，每小题4个选项）第一组：When a nominated surveyor or recognized organization determines that the condition of the ship or its equipment does not correspond substantially with the particulars of the Certificate (IOPP) or is such that the ship is not fit to proceed to sea without presenting an unreasonable threat of harm to the marine environment, such surveyor or organization shall immediately ensure that corrective action is taken and shall in due course notify the Administration. If such corrective action is not taken, the Certificate shall be withdrawn and the Administration shall be notified immediately; and if the ship is in a port of another Party, the appropriate authorities of the port State shall also be notified immediately. When an officer of the Administration, a nominated surveyor or a recognized organization has notified the appropriate authorities of the port State, the Government of the port State concerned shall give such officer, surveyor or organization any necessary assistance to carry out their obligations under this regulation. When applicable, the Government of the port State concerned shall take such steps as will ensure that the ship shall not sail until it can proceed to sea or leave the port for the purpose of proceeding to the nearest appropriate repair yard available without presenting an unreasonable threat of harm to the marine environment.Whenever an accident occurs to a ship or a defect is discovered which substantially affects the integrity of the ship or the efficiency or completeness of its equipment covered by this Annex the master or owner of the ship shall report at the earliest opportunity to the Administration, the recognized organization or the nominated surveyor responsible for issuing the relevant Certificate, who shall cause investigations to be initiated to determine whether a survey as required by paragraph 1 of this regulation is necessary. If the ship is in a port of another Party, the master or owner shall also report immediately to the appropriate authorities of the port State and the nominated surveyor or recognized organization shall ascertain that such report has been made.83. When a ship is found not fit to proceed to sea by a nominated surveyor, then corrective action should be taken and be informed immediately. (1)the master (2)the authorities of port State (3)the AdministrationA. (1)B. (2)C. (3)D. (1)(2)(3)84. When a ship were found its equipment does not correspond substantially with the particulars of the Certificate by a nominated surveyor and corrective actions unable to be taken, then .A. the Certificate would be withdrawn.B. the ship owner would be fined.C. the shipping company must be notified immediately.D. the ship must proceed to the nearest appropriate repair yard for a repair without delay.85. When a ship were found its equipment does not correspond substantially with the particulars of the Certificate in another Party and corrective actions unable to be taken, then all the following should be taken except .A. the Certificate would be withdrawn.B. the Administration should be notified immediately.C. the appropriate authorities of the port should be notified immediately.D. the ship should proceed to the nearest appropriate repair yard without delay.86. In the Second paragraph, the underline word "Who", in such a context, stands for_____.A. the master or owner of the shipB. the AdministrationC. the Administration, the recognized organization or the nominated surveyor responsible forissuing the relevant CertificateD. the appropriate authorities of the port State第二组Under normal operation, some lubrication oil mist may be discharged from the air compressor to the air start system. This oil may be from excess compressor cylinder lubrication, from faulty oilscraper rings, or may even be suspended oil vapor contaminating the engine room atmosphere anddrawn in at the compressor suction. Oil discharge is kept to a minimum by draining the after cooler, air receiver and starting system. If small quantities of lubrication oil do get passed into the starting air system, they will deposit as thin moist film over internal pipe surfaces but are not readily combustible. If a cylinder non-return valve leak while the engine is in operation, some hot gas, possibly with unburned fuel and cylinder lubrication oil, may be blown through the valve to the adjacent air manifold. With further heating from the leaky valve, this, together with the already deposited oil film,will carbonize and form incandescent carbon. If starting air is applied to the system while still hot, the high pressure air coming into contact with the burning carbon may cause an explosion. Such an explosion will cause a flame to pass back through the air start pipe system, evaporating the depositedoil film and igniting it in the presence of air. Very high velocities and shockwaves are generated which may rupture pipes and fittings.Alternatively, if excessive oil has entered the air start system, a mixture of air and oil droplets maybe discharged through the open cylinder non-return valve during starting. This spray may ignite due to high temperatures in the cylinder, causing a flame through the still open valve to the air manifold.To prevent an explosion, air start valves must be correctly maintained and lubricated to ensure correct timing and free movement with positive closing. Oil in the system must be kept to a minimum, pipe lines must be drained and cleaned internally when necessary and oil discharge from air compressors must be kept to a minimum by good maintenance.87. The passage is mainly about .A. crankcase explosionB. scavenge box fireC. starting air pipeD. the danger of explosion in the starting air system88. According to this passage, if the cylinder non-return valve were not leaky, .A. an explosion would not be causedB. there still would be a danger of explosionC. oil would not deposit in the air pipeD. pipe lines would not have to be drained89. Which of the following is NOT mentioned in this passage?A. There may be oil vapor in the engine roomB. Pipes and fittings may be damaged if explosion takes placeC. The cooler should be drainedD. Bursting caps must be fitted90. The word "spray" (underlined in the third paragraph) means .A. oil mistB. hot gasC. injectionD. fuel oil第三组：The sewage treatment system must be capable of discharging an effluent that comes within the limits of the tests. Sewage can be treated biologically so that it may be discharged with minimal damage to ecosystem. Biological treatment involves the use of living organisms to treat the sewage within the sewage treatment plant so the liquids and sludge discharged are within the standards specified.Biological treatment plants are usually built up as a module and consist of various sections. Waste matter collected from the ships sanitary appliances is led through a sanitary piping system to the treatment module. The solid matter is broken up by passing it through a screen or a series of revolving cutters. The broken up solid material, together with the waste liquid, passes into a tank containing bacteria which require oxygen and a nutrient to propagate. The nutrient is contained in the solid waste material, and oxygen is supplied by bubbling compressed air through the broken up waste. The propagated bacteria change the waste material into a sludge by aerobic digestion. The sludge is finally treated to kill the coliform bacteria before it is passed overboard.When a biological sewage plant is started up, such as when activating a new ship or after cleaning out the tank, a pellet containing bacteria is introduced into the tank. It takes approximately one week for the bacteria to propagate and make the system fully effective. The choice of sanitary appliance cleaners requires extreme care, as many cleaners are toxic to the active bacteria. Once a biological sewage plant is made active it should not be shut down. If it is it will have to be reactivated again because the bacteria will die without a supply of nutrients and oxygen.Bacteria that require oxygen for their survival are referred to as aerobic. Aerobic bacteria are normally used in ships' sewage treatment equipment. Other forms of bacteria that do not require oxygen are referred to as anaerobic. Anaerobic bacteria are used in shore based sewage treatment works where methane is obtained as a by-product for use as fuel.91. This passage is mainly about .A. sewage treatment methodsB. the various sections of a sewage treatment plantsC. biological sewage treatment systemD. how the sewage treatment plants are started up92. Biological treatment may use __ to treat sewage.(1)living organisms (2)chemicals (3)additivesA. (1)B. (2)C. (3)D. (1)(2)(3)93. Sanitary waste matter will .(1)pass through a screen or cutters (2)come into contact with thebacteria in a tank (3)be discharged, normally without bacteriaA. (1)B. (1)(2)C. (2)(3)D. (1)(2)(3)94. According to the passage, the screen or cutters are fitted to __ (1)kill bacteria (2)break up thesolid waste (3)remove solid matter with large sizeA. (1)B. (2)C. (2)(3)D. None of (1)(2)(3) is true.。

轮机英语历年真题42期

中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题,每题10分。

一、单项选择题1.The ______engine is used for alternators and some times for main propulsion with a gearbox toprovide a propeller of between 90 to 120 rpm.A. four-strokeB. two-strokeC. slow speedD. reversible2.The discharge flow of a reciprocating pump is ______.A. steadyB. in pulsationC. continuousD. large3.The cetane number of a diesel fuel oil indicates its ______.A. viscosityB. acid contentC. heating valueD. ignition quality4.Always ensure that the turning gear is______, even at the quay, the wave from other ships mayturn the propeller and thus the engine.A. disengagedB. engagedC. assembledD. disassembled5.Camshafts are usually driven by timing gears or ______.A. push rodsB. chain drivesC. rocker armsD. flywheels6.The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass thelubricating orifices, during______.A. the upward strokeB. the downward strokeC. the power strokeD. the suction stroke7.The total starting air capacity required for reversible main engines is to be sufficient for a least______.A. six consecutive(连续的) startsB. eight consecutive startsC. ten consecutive startsD. twelve consecutive starts8. A dirty diesel engine oil filter element can best be detected by ______.A. visual inspection of the elementsB. the pressure drop across the filterC. high lube oil sump temperatureD. decrease in oil viscosity from the filter9.Before a marine diesel engine is started the cylinders and pistons must be ______.A. cooled to appropriate temperatureB. warmed up gradually to appropriate temperatureC. opened up and renewedD. ground and polished10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.The maximum pressure developed by a waste heat boiler is determined by the main engineexhaust ______.A. gas compositionB. gas temperatureC. pressureD. timing 12.______continuously extract the crankcase atmosphere, via a pipe system, and move it past asensitive and accurate opacity (不透明)measuring track.A. The oil mist detectorsB. The smoke detectorsC. An oily water monitorD. Oil discharge monitoring and controlling system13.The water in a steaming auxiliary boiler should be tested daily for ______.A. dissolved oxygenB. chloridesC. sludgeD. dissolved nitrogen14. A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.A. excessive purging before lighting offB. insufficient trail for ignition periodC. a faulty transformer in the ignition circuitD. insufficient purging after lighting off15. A feed pump for an auxiliary boiler might lose suction if the ______.A. boiler water level is lowB. feed-water is too hotC. boiler steam demand is lowD. feed-water is too cold16.The gear and screw pumps are classified as______.A. variable stroke pumpsB. multistage pumpsC. positive displacement pumpsD. triple-ported pumps17.The pressure of a liquid leaving the pump can be referred to as the ______.A. total headB. discharge headC. net positive suction headD. suction head18.Which of the valves listed will be cycled from fully open to fully closed when the handle isturned 90 degree?A. A rising stem gate valveB. A globe stop valveC. A check valveD. A butterfly valve19. A pump shaft that is bent or distorted should normally be ______.A. repaired by a suitable welding processB. straightened by applying heat and torsionC. reconditioned by metallizing and machiningD. replaced with a satisfactory spare20. A centrifugal pump may fail to deliver water when first started if the ______.A. water seal pipe is pluggedB. pump is not primedC. seal ring is improperly locatedD. impeller is flooded21.Which of the following conditions must exist for heat to flow from one object to another?A. The two objects must be in physical contact.B. The two objects must be the same size.C. There must be an existing temperature differential.D. There must be an existing weight differential.22.The dew point of air is reached when the wet bulb temperature is ______.A. twice the dry bulb temperatureB. 10℃ above the dry bulb temperatureC. 5℃ above the dry bulb temperatureD. equal to the dry bulb temperature23.If air at 95 ℃ dry bulb temperature and 50% relative humidity is conditioned to 75 ℃ dry bulbtemperature and 50% relative humidity, it is an example of ______.A. cooling onlyB. cooling and humidifyingC. cooling and dehumidifyingD. adiabatic(绝热的) cooling24.In order to achieve greater dehumidification(除湿) with an air conditioning system, you should______. I. reduce the cooling coil temperature II. increase the re-heater temperatureA. I onlyB. II onlyC. Both I and IID. Neither I nor II25.Oily water separators are used to ensure that ships don't discharge oil when pumping out ______.A. ballast waterB. boiler waterC. bilge waterD. sewage water26.When started, a complete oily water separating unit is first filled______. The oily water mixtureis then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water27.Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler28.The oil sludge is burnt in the ______onboard. I’ll show you the ashes.A. boilerB. main engineC. auxiliary engineD. incinerator29.Most marine biological sewage treatment plants consist of all the following statements except______.A. aeration tanksB. settling tanksC. disinfection agentD. anaerobic bacteria (厌氧菌)30.Great care is dedicated to the removal of _____ from the scavenge air.A. gravityB. viscosityC. densityD. humidity31.Dirty oil must be _____ before being used again.A. mixed with clean oilB. purifiedC. heatedD. strained32.When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and___ the sea water passing through the tubes.A. disposeB. dissolveC. heatD. dissipates33.When securing a flash-type evaporator for an extended period of time, you should ______.A. fill the unit with saltwaterB. fill the unit with descaling compoundC. completely drain the unitD. tightly seal the unit to exclude air34.Among the basic categories of equipment, which of the following are used to allow the hydraulicenergy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors35.Positive displacement, helical gear(斜齿轮) pumps are well suited for pumping oil because______.A. stuffing boxes eliminate the leakage problems usually associated with other gear pumpsB. it is not necessary to closely maintain design clearances with this pumpC. they are essentially self-priming and produce a high suction liftD. these pumps are designed with extreme tooth angles36.The oil in a cargo winch gear box should be sampled periodically(周期性地) to ______.A. prevent the gear box from leakingB. prevent the oil from becoming inflammable(易燃的)C. make sure it has not become contaminated(污染)D. make sure the motor bearings are lubricated37.If an anchor windlass has been idle for some time, you should ______.A. repack all valve stemsB. lubricate it prior to useC. replace the foundation boltsD. balance the warping heads 38. A mooring winch should be equipped with mechanical brakes capable of holding ______.A. half the breaking strength of the mooring lineB. the full breaking strength of the mooring lineC. the maximum expected tension(张力) of the mooring lineD. 50% over the working tension of the mooring line39.Hydraulic cranes must be properly warmed-up before being operated because ______.A. warm-up allows the hydraulic system to become charged with oilB. warm-up allows the relief valves to be properly testedC. hydraulic strainers operate only during the warm-up periodD. hydraulic fluid must be at the proper viscosity40.The current flowing first in one direction and then in another is called ____ current.A. a rushB. an alternatingC. a directD. an exciting41.The frequency of an alternator at a given RPM is determined by the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage42.While paralleling two AC generators using synchronizing(同步的) lamps only, both lamps willgo dark when the generators are ______.A. running at the same speedB. groundedC. of the same polarity(极性)D. in phase43.The load sharing characteristics of two diesel generators operating in parallel are mostlydependent on their governor ______.A. load limit settingsB. idle speed settingsC. speed limit settingsD. speed droop settings44.Electric insulation is made of organic substances and so gradually ______with age.A. deterioratesB. increasesC. are fouledD. becomes better45.The main generators are connected to ______.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards46.The operation of _____ two alternators requires the voltages to be equal and also in phase.A. controlB. series-mountingC. runningD. paralleling47.______is a machine by which electrical energy is transformed into mechanical energy.A. An alternatorB. An electric motorC. A diesel engineD. A main switchboard48. A ground in an electrical circuit outside the engine room ______.A. cannot be detected under normal conditionsB. is of no consequence to engineering personnelC. is indicated at the branch circuit breaker panelD. is indicated by the ground detecting lamps on the main switchboard49.Time delayed or delayed action-type fuses are designed to ______.A. prevent grounds in branch circuitsB. prevent opens in motor circuitsC. permit momentary overloads without meltingD. guard lighting and electronic circuits50.When voltage and current developed in an AC circuit reach their peak values at the same time,the power factor is ______.A. laggingB. leadingC. maximumD. minimum51.When there is a fire in a large electric motor, normally the very FIRST step is to ______.A. secure the electric supplyB. ventilate area to remove smokeC. start the fire pump and lead out hoseD. apply foam52.Before “stand by” is rung on the engine telegraph, it is usual to give the main diesel engine a brieftrial ______ahead and astern.A. with powerB. on powerC. with airD. on air53.Bridge orders must be ______and a record of any required changes in speed and direction shouldbe kept.A. slowly carried awayB. carried out with a period of delayC. promptly carried outD. paid by the captain54.After the order ' ______' is given, the air system is shut down, the turning gear put in.A. Finished With EngineB. Stop The EngineC. Stand-by EngineD. Slow-down Engine55. A tank has been sealed and unventilated(不通风的) for a long period of time. Which of thefollowing conditions does this indicate?A. The tank is safe to enter.B. The tank is especially dangerous to enter.C. Carbon monoxide(一氧化碳) is present.D. Water vapor present when the tank was sealed has oxidized(使氧化).56.Fires involving combustible metals are classified as ______.A. class 'A' firesB. class 'B' firesC. class 'C' firesD. class 'D' fires57.The three basic components of a fire are chain reaction, heat, fuel, and ______.A. carbon monoxideB. oxygenC. carbon dioxideD. any gaseous substance58.CO2 extinguishes a fire by __________.A. a blanket of bubbles formed on the surface of the fireB. smotheringC. isolating the heat from the fuelD. cooling59.Seawater may be used for drinking water ______.A. at a maximum rate of two ounces(盎司) per dayB. after mixing with an equal quantity of fresh waterC. if gather during or immediately after a hard rainD. under no circumstance60.Obviously, for a given fuel oil, its pour point is ______its cloud point.A. lower thanB. higher thanC. as same asD. better than61.Now that the valve is not worth ______, I suggest it ______.A. to repair/renewingB. repairing/renewingC. to repair/ be renewedD. repairing/be renewed 62.When a vessel is in dry-dock, the vessel's engineers should ______.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging63.The additional mark ______in the Classification Certificate for Machinery represents thepropulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A. BRCB. MCCC. AUT-0D. AUT-164.Oil Record Book Part I shall be provided to ______.A. every oil tankerB. every ship of 400 tons gross tonnage and aboveC. every shipD. any ship65.“Inability to provide for the first watch at the commencement of a voyage and for subsequentrelieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainable deficiencies(缺乏) under ______.A. the SOLAS ConventionB. the MARPOL ConventionC. the STCW ConventionD. the LOAD LINE Convention66.The Port State Control officer may witness a fire drill carried out by the crew assigned to theseduties on the ______.A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List67.When deciding the composition of the engineering watch, which may include _____appropriately,many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer68.During an engine room watch if immediate action is necessary to ensure safety of the ship, itsmachinery and crew, ______.A. the chief engineer must be informed at firstB. the captain must be informed at firstC. it must be taken by the duty engineerD. the generator engine must be stopped69.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.A. skimmersB. strawC. dispersantsD. sawdust70.According to the international regulations concerning the prevention of pollution of sea areasfrom ships, the disposal into the sea of all plastics is ______.A. welcomeB. admitted in some special sea areasC. prohibitedD. acceptable71.In cleaning up an oil spill, the use of chemical agents would ______.A. absorb the oil for easy removalB. remove the oil from the waterC. disperse(分散) or dissolve the oil in the waterD. not affect the oil72.The main objective of the SOLAS Convention is to specify ______for the construction,equipment and operation of ships, compatible their safety.A. at most referencesB. at least referencesC. maximum standardsD. minimum standards73.These acid residues must be prevented from entering the crankcase, otherwise the lube oil wouldbe _______ .A. optimizedB. emulsifiedC. contaminatedD. oxidated74.The ship security officer shall have knowledge and have received training, taking into account theguidance given in Part B of______.A. the ISM CodeB. the ISPS CodeC. the IBC CodeD. the IGC Code二、关联题（关联题题干下有4个小题，每小题4个选项）The clearly visible benefit of RT-flex engines is their smokeless operation at all ship speeds. This is achieved by the superior combustion performance with the common-rail fuel injection.This system maintains the fuel injection pressure at the optimum level right across the engine speed range, ensuring optimum combustion under all operating conditions. In addition, a selective shut-off of single injectors at very low speeds and an optimized exhaust valve timing help to keep smoke emissions below the visible limit.Sulzer RT-flex engines also have the advantage of steady running at lower speeds than engines with mechanically-controlled injection. They can run very steadily, and without smoking, at 10-12% of nominal speed, which for the RT-flex 60C is about 10-14rpm. This is made possible by the precise control of injection, together with the higher injection pressures achieved at low speed, and the sequential shut-off injectors.75.According to above massage, the advantage of common-rail injection is______.A. smokeless operationB. shockless operationC. noiseless operationD. no vibration operation76.According to above massage, RT-flex engine can optimize______.① fuel injection pressure② combustion ③ exhaust valve timingA. ①②B. ①②③C..③D. ②77.The key feature of the Sulzer RT-flex system is that it gives complete freedom in the _____ andoperation of fuel injection and exhaust valve actuation.A. meteringB. timingC. controlD. using78.The RT-flex engine can run at very low speed, this is made possible by following things except_______.A. the precise control of injectionB. the higher injection pressuresC. the optimized exhaust valve timingD. the sequential shut-off injectors 三、中译英（共2题，请将答案写在答题纸上）79、（轮机日志）上午10时30分，由于不明原因运行中NO.1发电机跳闸，导致全船失电,NO.2发电机自动起动恢复正常供电。

大管轮轮机英语综合(33-48期)

中华人民共和国海事局2004年第1期海船船员适任证书全国统考试题(总第33期)科目：轮机英语试卷代号：803适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至68题，每题1分，第69题至76题，每题1.5分,第77题至78题,每题10分。

一、单项选择题：1．The exhaust valve is opened at about the same time ______the air inlet ports are opened.A. beforeB. afterC. whenD. until2．Cylinder wall temperature, fuel oil sulphur, and oil passage ______.A. are interdependentB. are not interdependentC. have nothing to do with each otherD. are independent3．Acid solution ______ in the system can be tested from time to time by putting some on to a piece of lime.A. strengthB. denseC. percentageD. velocity4．Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from ______.A. within the space concernedB. outside the space concernedC. the throttle stationD. within the fire room5．Cylinder oil is a high viscosity mineral oil, with a ______machined to the anticipated sulfur content of the fuel.A. TANB. TBNC. SAND. SBN6．The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a ______.A. low viscosity indexB. high viscosity indexC. high neutralization numberD. low demulsibility quality7．When considering the lowest fuel system operating temperature, ______ are important.A. specific gravity or relative densityB. open flash point and closed flash point valuesC. higher calorific and lower calorific valuesD. cloud point and pour point values8．In ______the incoming air is directed upwards, pushing the exhaust gases before it and then the exhaust gases travel down.A. loop scavengingB. cross scavengingC. uniflow scavengingD. supercharging9．______ is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.A. An air receiverB. An operating valveC. An automatic valveD. An air distributor 10．Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle, turbo-charged, diesel engine?A. Clogged air intake filters.B. Piston blow-by.C. A defective after-cooler.D. Faulty exhaust valves.11．Misalignment of an engine crankshaft can be detected by measuring______of crank webs for each unit of the engine.A. diametersB. lengthsC. deflectionsD. none of the above12．A crankshaft whose center of gravity coincides with its center line is said to be ______.A. dynamically balancedB. statically balancedC. counter balancedD. resonantly balanced 13．In a diesel engine, the main bearings are used between the ______.A. connecting rod and the crankshaftB. wrist pin and the connecting rodC. camshaft and the engine blockD. crankshaft and the engine block14．We should not start the engine unless the turning gear is ______.A. onB. disengagedC. boltedD. unscrewed15．When the exhaust ports or valves are opened, the ______begin to exhaust.A. carbon and waterB. refrigeration steamC. burnt gasesD. oil sludge16．We'd better take _____to save fuel consumption, you know it would be useless to get there earlier.A. nominal speedB. economical speedC. rated speedD. slow speed17．Shaft sealing in a centrifugal pump can be effected by ______.A. the mechanical sealB. packed stuffing boxesC. either A or BD. neither A nor B 18．Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be ______.A. one size smaller than the pump suction nozzleB. the same size as the pump suction nozzleC. one size larger than the pump suction nozzleD. installed with a short radius elbow at the pump19．The water level in a steaming auxiliary boiler will always ______.A. rise when the steam pressure is increasedB. remain constant as long as the feed pump operatesC. fall when the steam pressure is decreasedD. vary as the steam demand changes20．The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of ______.A. seawater contaminationB. frequent surface blowsC. dissolved oxygen deaerationD. frequent bottom blows21．Sediment collects in a tubular purifier______.A. on top coverB. on sides of bowlC. in drain line on the discsD. on the discs 22．The operating water is supplied under the ______of an oil separator.A. sliding bowl bottomB. bowl hoodC. bowlD. filter units23．The bilge main is arranged to drain any watertight compartment ______ballast, oil or water tanks and to discharge the contents overboard.A. rather thanB. other thanC. in addition thatD. except for24．The oil sludge is burnt in the ______onboard. I‟ll show you the ashes.A. boilerB. main engineC. auxiliary engineD. incinerator25．When making entries in the Oil Record Book, the date, operational code, and item number shall be inserted in the appropriate columns. Furthermore, the required particulars shall be ______.A. recorded only for accidental oil dischargesB. recorded only for operations involving discharge of oily wasteC. signed by the oiler who enters them in the Oil Record BookD. recorded chronologically in the blank space26．Which bearing will carry the load on two small points diametrically opposite to each other?A. NeedleB. Tapered rollerC. RollerD. Ball27．In a general cargo crane, ______ is fitted to raise or lower the jib.A. the slewing motorB. the luffing motorC. the hoisting motorD. none of the above 28．In an electro-hydraulic steering gear system, when will the variable displacement pump be placed on stroke?A. When the helm is at any angle other than amidships.B. When the six-way valve is opened.C. When the ram relief valves lift.D. When the rudder angle is different from the position of the helm.29．With reference to rules governing steering gear, which one of the following rules is incorrect ?A. It is required that all ships are provided with two independent steering gear systems that is onemain and one auxiliary.B. The auxiliary gear could be power operated in passenger ships.C. The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigablespeed.D. All moving parts of the steering gear must be guarded against any possible damage.30．A refrigeration system contaminated with moisture can be affected by ______.A. acid formationB. sludge formationC. ice in the expansion valveD. all of the above 31．A dirty intercooler on the ship service air compressor will result in ______.A. decreased compression ratioB. higher than normal power consumptionC. un-loader malfunctionD. water in the lubricating oil32．Which of the problems listed would cause the discharge temperature of an R-22 refrigeration compressor to increase?A. Thermal expansion valve frozen open.B. Suction gas heat exchanger bypassed.C. Condenser clogged or fouled.D. High pressure cutout switch inoperative. 33．Zinc rods are installed in the refrigeration system ______.A. liquid strainerB. liquid receiverC. saltwater condenserD. evaporator34．The fire pumps must be capable of delivering a total quantity of water at a defined head , not less than______ of the total bilge pumping capacity.A. one-thirdB. two-thirdsC. one-fourthD. two-fourths35．Which of the following factors will have the greatest effect on the heating load within a conditioned space?A. Solar gainB. Infiltration and ventilation airC. Occupants inside the spaceD. Entertainment equipment within the space36．On commonly used ships, if two A.C. generators are operated in parallel, the load is distributed evenly by ______.A. varying the D.C. exciter voltageB. varying the reluctance of the air gapC. regulating the speed of prime moverD. shorting out part of the armature windings 37．Which of the listed sections of an emergency switchboard is used to supply power for alarm signals under emergency conditions?A. The generator and bus transfer sectionB. The 450 volt, 60 cycle, 3 phase busC. The 120 volt, 3 phase, 60 cycle busD. The 24 volt DC bus38．Which of the following should be the FIRST step in removing a generator from parallel operation?A. Trip the generator off the switchboard.B. Turn off all electrical equipment.C. Remove the load from the 'off going' generator.D. Increase the cycles of the generator staying on the line.39．Which of the listed devices is used to measure pressure and convert it to an electrical signal?A. TransducerB. ReducerC. TransformerD. Rectifier40．An indicator on the main switchboard should show ______the emergency battery is in service or not.A. whichB. whenC. weatherD. whether41．The number of cycles per second occurring in AC voltage is known as the ______.A. phase angleB. frequencyC. wave formD. half mode42．While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?A. Make an entry in the official logbook.B. Open the master control valves on the fixed CO2 system.C. Start the fire pump and check discharge pressure.D. Secure auxiliary condenser overboard discharge.43．The additional mark ______ in the Classification Certificate for Machinery represents that personnel are watching at engine assembly control station and monitoring all machinery andelectronic devices.A. BRCB. MCCC. AUT-0D. AUT-144．If the atomizer holes are enlarged beyond the maker's recommended size , the atomizer must be ______.A. repairedB. replacedC. replenishedD. repeated45．In a diesel engine, an extremely leaking exhaust valve can cause ______.A. misfiringB. pre-ignitionC. interrupted scavengingD. reduced scavenging 46．One cylinder of a diesel engine is persistently knocking and does not cease when the fuel supply to that cylinder is secured. Which of the following problems may be the cause?A. Low loading of the cylinder.B. Excessive cooling of that piston.C. Sluggish ring action on the piston.D. A mechanical defect in a working part.47．Poor combustion in a diesel engine can be caused by ______.A. high compression pressureB. low intake air temperatureC. low exhaust pressureD. high scavenge air temperature48．Any increase in the exhaust back pressure of a four-stroke/cycle diesel engine will ______.A. reduce engine horsepower outputB. aid in silencing the exhaust noiseC. increase the mean effective pressureD. contribute to effective cylinder scavenging 49．Hearing a strong noise, ______at once.A. the engine stoppedB. the engine was stoppedC. he stopped the engineD. he had stopped the engine50．Fix the fuel injector into______after repair.A. the cylinder linerB. the cylinder coverC. the cylinder jacketD. the piston 51．Lower suction pressure of a pump may be caused by ______.A. too much air in the pipe lineB. closed inlet valveC. empty tankD. leaky pipe52．Diesel engine exhaust temperatures may be used to indicate ______.A. leaking exhaust valvesB. an overloaded cylinderC. a clogged injector nozzleD. all of the above.53．The indications of a scavenge fire are excessive black smoke, ______ and peeling from scavenge trunking.A. turbo-chargers surgeB. spark seen from the drainsC. paint blisteringD. all above are right 54．It is well known that the whole power distribution of the ship‟s electrical services mainly depend on the______.A. sub-boardsB. main switchboardsC. emergency switchboardsD. distribution boards 55．Combustion knock can occur in the cylinders of a diesel engine under any condition permitting ______.A. a shortened ignition delay periodB. a lean fuel/air mixtureC. excess fuel in the combustion chamberD. rapid vaporization of injected fuel droplets56．Oil mist detectors are usually used on board to detect oil mist density within ______.A. the engine crankcaseB. the engine scavenge boxesC. drain tanksD. fuel tanks57．Before doing maintenance on electrical equipment, you should ______.A. turn off power firstB. turn on power firstC. with a test pen in handD. tell C/E 58．When start a screw pump, the by pass valve should be ______.A. closedB. opened fullyC. cracked openD. partly open59．Our company has built a new ship in Hamburg and I am going to fly there to______.A. hand it overB. take it overC. carry it overD. carry it out60．Routine monitoring of a diesel engine should include ______.A. checking for leaksB. checking temperatures and pressuresC. listening for abnormal noisesD. all of the above.61．Which of the precautions listed should be observed when taking on diesel fuel?A. Secure all lighting to the main deck.B. Provide a portable fan to blow away fumes.C. Prohibit smoking in the area.D. Display a black triangle during daylight hours.62．The conventions under which the port state control inspection is carried out include all the following except______.A. SOLAS 74B. MARPOL 73/78C. STCW 78/95D. ISM Code63．A portable foam fire extinguisher is placed in operation by ______.A. turning it upside downB. pressing the foam leverC. squeezing the grip handleD. opening the hose valve 64．In cleaning up an oil spill, the use of chemical agents would ______.A. absorb the oil for easy removalB. remove the oil from the waterC. disperse or dissolve the oil in the waterD. not affect the oil65．While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?A. Make an entry in the official logbook.B. Open the master control valves on the fixed CO 2 system.C. Start the fire pump and check discharge pressure.D. Secure auxiliary condenser overboard discharge.66．One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is ______.A.the … snow ‟ whic h is sometimes discharged along with the gas is toxicB. prolonged exposure to high concentrations of CO 2 gas causes suffocationC. rapid dissipation of the CO 2 vaporD. the CO 2 gas is lighter than air and a large amount is required to extinguish a fire near the deck 67．The company should establish procedures to ensure that the ship is maintained______ the provisions of the relevant rules and regulations.A. out of accordance withB. in relation toC. in conformity withD. in connection with 68．The maximum Blood Alcohol Concentration (BAC) rate on board shall not be more than ______ by weight any time when being tested. But watch-keepers are not allowed to drink any alcoholic beverage ______before their watch.A. 0.08%/ 4 hoursB. 0.08%/ 2 hoursC. 0.04%/ 4 hoursD. 0.04%/ 2 hours二、关联题（每组关联题题干下有4个小题，每小题4个选项）第一组：Because the exhaust gas driven turbo-blower cannot provide enough air at low engine speeds, the pressurized air should be cooled to increase the charge air density. As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engine. So a water separator should be mounted beneath the bottom part of the engine inlet manifold.Lubricating oil from the compressor will pass along the air lines and deposit on them, in the event of a cylinder air starting valve leaking, hot gases would pass into the air pipes and ignite the lubricating oil. If starting air were supplied to the engine, this would further feed the fire andcould lead to an explosion in the pipelines. In order to prevent such an occurrence, cylinder-starting valves should be properly maintained and the pipelines regularly drained. Also oildischarged from compressors should be kept to a minimum, by careful maintenance.69.A water separator is used in order to ______.A. keep the air from being carried into the engineB. keep the moisture from being condensedC. keep the danger from being carried into the engineD. take away the condensate from the air70.Why should we use a charge air cooler?A. In order to increase the charge air temperature.B. In order to increase the charge air pressure.C. In order to reduce moisture condensed.D. In order to increase the charge air density.71.Which of the following may cause an explosion according to the passage?A. Starting air cannot be supplied into the engine.B. Air starting valve leaks and starting air is supplied into the engine.C. Cylinder-starting valves are properly maintained.D. Oil discharged from compressors is kept to a minimum.72.In order to avoid igniting the lubricating oil and leading to an explosion in the pipelines, ______.A. pipelines should be regularly drainedB. cylinder-starting valves should be properly maintainedC. oil discharged from compressors should be kept to a minimumD. A+B+C第二组：Maintenance and OverhaulingSatisfactory and proper operation of the engine depends not only on correct manoeuvring but also on how well it is kept in order. Regular maintenance of the engine helps a lot in preventing early wear of parts and in ensuring a long service as well as the working efficiency of the engine.With various types of engines, of course, the maintenance and overhaul is different. Instruction books are to be referred to whenever necessary.The individual parts of the engine should be inspected and thoroughly cleaned at regular intervals. The periods for such overhaul work depend largely on the quality of the lubricating oil and fuel, on the load and on the efficiency of the operator in locating troubles and remedyingthem in time..During overhaul the safety rules have to be observed as required in order to prevent the danger of accidents. Special precaution is necessary when the engine is running with the lagging removed. During overhauls with the engine shut down, safety measures should be taken to avoid undesirable turning of the crankshaft. All pipes should be pressure-relieved before the repair work is started. Read the pressure gauges and /or check the pipes by carefully loosening the screw plugs or connections.If some parts of the running gear are dismantled, before using the turning gear, make sure that no loose parts are jammed in the crankcase where it is easy for them to cause damage.73.According to the passage, which the following factors are involved to keep the enginesatisfactory and proper running?A. correct manoeuvringB. keep the engine in orderC. refer to the instruction booksD. all of above74.According to the passage, which the following items do influence the periods of the overhaulingwork?A. the quality of the lubricating oilB. the load of the engineC. the efficiency of the operator in locating troubles and remedying them in timeD. all of the above75.According to the passage, we should take special precaution when ____.A. the engine is running with the removal of laggingB. the engine is shut downC. pipes are removedD. the screw plugs or connections are lossened76.According to the passage, line 17 the bold and italic word “it” may propabably mean ____ .A. running gearB. turning gearC. crankcaseD. to cause damage中华人民共和国海事局2003年第3期海船船员适任证书全国统考试题(总第32期)科目：轮机英语试卷代号：803适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

轮机英语大证考试真题48期

中华人民共和国海事局2009年第5期海船船员适任统考试题（总第48期）科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

1. Diesel engines classified as reciprocating internal combustion engines because they____A. use energy from fuel burned outside their cylindersB. burn fuel in a combustion chamber that moves back and forthC. burn fuel in a chamber where its energy moves a piston up and downD. a continuous combustion process to impart rotary motion to the pistons2. The abbreviation “MIP” stands for _____A. middle indication pressureB. mean indicated pressureC. mean indicated pitchD. middle indicated power3. The term used to express the ignition quality of a particular fuel is _____A. cetane numberB. octane numberC. ignition index numberD. volatility point4. The period when both inlet valves and exhaust valves are open is referred to as____A. valve loopB. valve uniflowC. valve overlapD. valve grinding5. Which of the following statements represents the function of the compression rings installed at the top of a diesel engine piston?A. Control the amount of lube oil burned in the combustion chamberB. Transmit heat from the piston to the cylinder linerC. Prevent damage to ring groove inserts by action as a heat dam.D. Dissipate combustion chamber gas pressure by channeling it through the ring gap.6. The gas loads on the engine structure are constrained by means of hydraulically preloaded_____ Which connect the bed plate, frame sections and cylinder jackets into a single unit.A. connecting rodsB. mean bearingC. columnD. the rods7. ______of different thickness are inserted between the shells to enable adjustment of the bearing clearness.A. ScrewsB. FilmsC. DisesD. Shims8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantages of ____A. less even torqueB. higher cylinder head temperaturesC. fewer power stroke per revolutionD. greater weight/size requirements9. During the fuel imection period, fuel pressure must exceed cylinder gas pressure to _____A. ensure penetration and distribution of the fuel in the combustion chamberB. ensure the needle valve is flushed clean during each injectionC. prevent combustion gas blowback into the open needle valveD. prevent reflected pressure waves when the needle valve closes10. The upper piston rings in large, slow-speed, two-stroke cycle diesel engines are most effectively lubricated by oil ____A. fed from mechanical lubricatorsB. thrown off from the main bearingsC. supplied form wick fed drip lubricatorsD. flow from a centrifugal banjo oiler11. In a diesel engine closed freshwater cooling system, the amount of coolant flowing through the heat exchange is controlled by the _____A. section pressure regulatorB. thermostatic bypass valveC. sea water temperatureD. water level in the expansion tank12. The purpose of an after-cooler is to ______A. reduce the turbocharger operation temperatureB. increase the pressure of the inlet airC. increase the density of the inlet airD. reduce the blower operation temperature13. Compressed air is supplied by air compressors to _____A. the air receiversB. the starting valvesC. the cylinder coversD. the distributors14. _____supplies pilot air to control the cylinder air start valves.A. An air receiversB. An indicator cockC. An air distributorD. A safety valve15. Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the ______A. cooling water leaving each cylinderB. fuel oil entering the injectorC. exhaust gases at various locationsD. lube oil at the bearing suppliers16. After starting a diesel engine, which of the listed operating conditions should be checked first?A. Air box pressureB. Lube oil pressureC. Exhaust temperaturesD. Raw water pressure17. A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an _____A. torque limiterB. over-speed tripC. over-speed governorD. load limit governor18. Air cocks, usually positioned at the ______in a circulating systems, is used to get rid of the air in the system.A. bending jointB. expansion tankC. weldD. the highest point19. Some medium and high-speed diesel engines require reduction gear units to provide a useful propeller speed. In most reduction gears, the bull gear____A. must churn the oil in the sumpB. is connected to the propeller shaftC. is driven at the highest RPMD. compensates for alignment variations between the engine and pinion gear20. Which of the following statements concerning fire-tube boilers is correct?A. combustion gases flow through the tubesB. flames impinge on the tubesC. combustion occurs in the tubesD. water flows through the tubes21. A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler______A. corrosion at low engine loadsB. erosion at high engine loadsC. overload at high engine loadsD. scaling at all exhaust temperature22. The amount of chlonde content in the water of an auxiliary boiler can be reduced by _____A. adding hydrazineB. blowing down the boilerC. adding phenolphthaleinD. adding a sulfite chloride scavenger23. Failure of the burner flame in an automatic auxiliary boiler would probably be a result of______A. water in the fuel oilB. broken high tension leadsC. incorrect electrode settingD. full fuel pressure at the nozzle24. Boiler water hardness is increased by _____A. zero alkalinity to the waterB. scale forming salts in the feed waterC. dissolved gases in the waterD. improper operation of the DS heater25. A screw pump belongs to ______according to its working principleA. reciprocating pumpsB. positive displacement pumpsC. dissolved gases in the waterD. centripetal pumps26. A centrifugal pump operating against a closed discharge valve has a/an_______A. capacity of 100%B. efficiency of 0%C. internal slippage of 0%D. shut off horsepower rating of 100%27. Before disconnecting a joint in a pipeline, you should______A. determine the size of the gasketB. hang a bucket under the jointC. have a first aid kit on handD. be sure no pressure exists in the line28. It is possible to mount a double suction centrifugal pump impeller with the vanes facing in the wrong direction. This would cause the pump ______A. head capacity to improveB. discharge to be reversedC. efficiency to decreaseD. slippage to decrease29. If a centrifugal pump is driven by a constant speed electric motor and produces a discharge pressure less than designed, the cause is probably_____A. excessive pump speedB. excessive suction headC. worn wearing ringsD. gross pump misalignment30. Properties of a good refrigeration oil include_______A. low wax contentB. high pour pointC. high viscosityD. low wax content, high pour point, high viscosity31. The _____ only allows for adjustment of temperature in each room by the occupant manually controlling the air volume admitted.A. central air conditioning systemB. high velocity systemC. low velocity systemD. single duct system32. The process of adding moisture to air to increase the relative humidity is known as______A. sublimation B desiccation C. humidification D. miniaturization33. Sludgy may form in the crankcase of an air conditioning compressor as a result of _____A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or floc point34. Which of the equipment listed is most effective in processing bilge slops for overboard dischargeA. a 100 PPM oily water separatorB. assembling the lube oil purifier as a separator and aligning it to the bilge overboardC. a 15 PPM oily water separatorD. a magnetic duplex strainer35. When started, a complete oily water separating unit is first filled _____. The oily watermixture is then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water36. Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler37. Concerning the incinerator’s operation, which of the following is not correct?A. scavenging time should be more than 30 seconds before ignitingB. the oil temperature of waste oil tank is 80-100℃C. first igniting the incinerator with diesel oil when the temperature of hearth is about 600℃, the waste oil is drawn in.D. the ash from incinerator can be dumped into sea no distance limitation38. Bacteria which live ____are said to be aerobicA. in the presence of oxygenB. without oxygenC. in the presence of nutritionD. without nutrition39. For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the ______A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface40. To ensure lube oil purifier working in normal condition, the interval between two sludgy discharging should not exceed ____ hours.A. 2B. 4C. 5D. 641. Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?A. Contamination of the lube oil by emulsification will resultB. The lube oil will not be subjected to the proper centrifugal forceC. The lube oil will overheat and flashD. Oil will discharge from the heavy phase discharge port and be wasted42. A vacuum is initially created in a flash type distilling plant by _____A. the flashing of the feed waterB. the condensation of the saltwater feedC. air ejectors, eductors, of a separate vacuum pumpD. condensation of the distillate43. On which of the following heated surfaces of a flash type evaporator would you be more likely to find soft scale formation?A. Feed-water heater internal tube surfacesB. Internal distillate cooler tubesC. Flash chamber vertical surfacesD. pressure control valve44. What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve45. Another name for the “swash plate” in the variable delivery pump is _____A. tiltable discB. gravity discC. distributing discD. catch plate46. The drive motor will have a brake arranged to fail-safe, i.e. it will ___the load if power fails or machine is stopped.A. liftB. putC. takeD. hold47. If the pump for a hydraulic anchor windlass is over heating, the cause may be_____A. increased pump speedB. excessive pump discharge pressureC. too low of a tilting box angleD. low pump speed48. When the power is shut off, the wire____A. becomes slackB. can not be paid out unless the brake is overhauled or recover wire unless manually operatedC. will be let out because the brake is out of workD. may be pay out due to no power49. An additive used to improve the ability of a lube oil to reduce friction is known as a/an ____A. suppressant additiveB. dispersant additiveC. extreme pressure additiveD. viscosity improver additive50. Strainers are commonly used in hydraulic systems to _____A. protect the pump from fine soluble contaminantsB. prevent solid particles from entering the pumpC. prevent solid particles from entering the filterD. protect the directional control valves51. Current changing in direction and rising and falling in value is ____A. A.C.B. D.C. C. generatorD. fresh water generator52. The magnetic field is provided by electromagnet, so arranged that adjacent poles have_____A. opposite polarityB. the same polarityC. negative polarityD. positive polarity53. Prior to closing the breaker when paralleling two AC. generators, the recommended practice is to have the frequency of the incoming machine_____A. slightly less than the line frequencyB. the same as the line frequencyC. slightly greater than the line frequencyD. have nothing to do with the lien frequency54. The power factor at which a paralleled A.C. generator operates is usually adjusted by the ____A. connected loadB. prime mover speedC. field excitationD. generator’s rated voltage54. When you are making a high potential test on a piece of repaired electrical machinery, a rise in leakage current indicates ________A. good insulationB. bad insulationC. high insulation power factorD. a high slot discharge factor56. ______is not a part of the main switchboard on board.A. BusbarB. Load panel of main generatorC. Paralleling panelD. Shore connection box57. Usually, emergency electricity supplies to _____on boardA. cargo winchB. windlassC. steering gearD. main air compressor58. The ground terminal of a starter should be connected to _____A. the common ground pointB. the starter’s frameC. the communicatorD. the starter’s mounting bolts59. The separate supplies are connected in either star or delta formation. The star formation is most commonly used and requires ______ slip-rings on the alternator.A. twoB. threeC. fourD. five60. As a general rule, the first troubleshooting action to be taken in checking faulty electric control devices is to ________A. draw a one line diagram of the circuitryB. test all fuses and measure the line voltageC. take megger readingsD. insulate the apparatus from ground9598659 (2009-7-16 14:14:26)61. When measuring AC current flow, you must always connect the meter ______A. in series with the power source and loadB. in parallel with the power source and loadC. insuring correct polarityD. using the lowest range possible to prevent instrument damage62. If a small electric motor is immersed in salt water it should be＿＿＿＿. Ⅰ. washed with free water; Ⅱ.dried in an ovenA. only ⅠB. only ⅡC. both Ⅰand ⅡD. neither Ⅰnor Ⅱ63. “AMIDSHIPS”refers to ________A. back of vesselB. the middle portion of a shipC. a backward movement of a vesselD. across the ship, at right angles to the fore-and-aft centerline64.______is the main cause to the damage of engine parts and excess wearingA. overloadB. the odds of the loadC. the default of engine partsD. overload and the odds of the load65. After “finished with engine”, which of the following cannot be shut off by the duty engineer?A. fuel oil booster pumpB. the main starting valveC. the sea chestD. the main cooling sea water pump66. Which of the following is NOT a recommended safe practice?A. Securing equipment against slipping or driftingB. Operating machinery at its recommended speedC. Repairing loose handles on tools before usingD. Using tools for purposes for which they are not designed67. A class “C” fire would occur in _____A. beddingB. pipe insulationC. paintD. a generator68. If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST______A. notify the engineer on watchB. isolate and secure the pipingC. throw sand on the fireD. extinguish the fire using a combination nozzle with applicator69. Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?A. Carbon dioxide is corrosive when exposed to fireB. Carbon dioxide should be applied slowly to a large engine room fireC. Its total cooling effect is far greater than waterD. Its smothering effect is excellent for class B fires70. As a duty engineer, as soon as you hear the fire emergency signal, you should ensure that the _______.A. ring buoys are thrown overboardB. engines are stoppedC. fire pumps are startedD. life preserves have been issued to everyone71. When administering artific ial respiration, it is of the utmost importance to ______A. use the mouth-to-mouth methodB. clear airwaysC. use rhythmic pressure methodD. check the injured person’s hearbeat72. What is the harmful effect of sulfur in a fuel?A. It causes excessive smoking and soot at low firing ratesB. It doesn’t readily burn when combined with oxygenC. It clogs fuel oil strainers more oftenD. It forms a corrosive acid when mixed water or water vapor73. _____, where minor repairs are carried out with a ship in service, often during a stay in port. This may be remote from a ship repair site.A. V oyage repairsB. Routine dockingC. Damager repairsD. Conversion74. When ship in the dock repairing, engine department should emphasize on the inspection of ______.A. sea valve chest and thrusterB. steering gear and the shaft systemC. sea water systemD. fresh water system75. The additional mark________ in the Classification Certificate for Machinery represents that personnel are watching at engine assembly control station and monitoring all machinery and electronic devices.A. BRCB.MCCC.AUT-0D.AUT-176. Each completed page of the Oil Record Book must be signed by the _____A. engineer on watchB. chief engineerC. chief mateD. master77. The International Oil Pollution Prevention Certificate required by MARPOL is issued to Chinese flag by the ____A. IMOSCGD.PICC78. If________, the PSCO should proceed to a more detailed inspection.A. the PSCO’s general impression confirm a good standard of maintenanceB. the certificates are validC. the PSCO believes the sh ip doesn’t meet the requirementsD. the PSCO can’t find deficiencies at first glance79. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the ______A. navigation log bookB. engine room log bookC. oil record bookD. muster list80. STCW78-95 Convention states that officer in charge of the engineering watch is the _______ representativeA. ship-owner’sB. master’sC. chief engineer’sD. manager’s81. In the event of minor emergencies when the machinery spaces unattended, ___________will be informed of malfunctions in the machinery by his cabin monitor.A. the chief engineerB. the engineer on cabin watchC. the bridge officer on watchD. the master82. At an unsheltered anchorage the chief engineer officer shall consult with the master whether or not to ______A. do engine repair workB. clean sea water filterC. maintain an underway watchD. take bunkering83. The Pollution Prevention Regulations require that all oil spills in United States waters be reported immediately to the ______A. local port authorityB. corps of engineersC. U.S. coast guardD. state pollution board84. When the garbage is mixed with some discharges having different disposal or discharge requirements, ________shall applyA. any requirement appointed by the PSC officerB. the most suitable requirementC. the most stringent requirementD. no requirement85. According to the SOLAS convention, the engine room emergency bilge water suction should connect with _____A. the main S.W. pumpB. the ballast pumpC. the air-conditioning water pumpD. the main S.W. pump or ballast pump that have the biggest output86. The purpose of the ISM Code is to provide ______standard for the safe management and operation of chips and for pollution prevention.87. ______means the level for which appropriate additional protective security measures shall be maintained for a period of time as a result of heightened risk of a security incident.A. Security level 1B. Security level 2C. Security level 3D. Security level 488. The installation and prevision of fire fighting equipment is mainly subject to ______A. ISM CodeB. ISPS CodeC. JBC CodeD. FSS Code二、关联题（关联提题干下有4个小题，每小题4个选项）第一组：In a closed fresh water system, the engine jackets, the heat exchanger and the circulating pumps form a continuous circuit which is not open to the atmosphere. The cylinder jacket cooling water after leaving the engine passes to a sea water circulating cooler (heat exchanger) and then into the jacket water circulating pumps. It is then pumped around the cylinder jackets, cylinder heads, exhaust valves and turbo-blowers. However, provision has to be made for the expansion of the water due to the increase in temperature and due to small amounts of air which may enter the system and become entrained and for water make-up due to leakages. These are met by a small head tank which is open to the atmosphere and placed at a higher level than any other point in the system so that the small changes in volume can be accommodated by changing the level of the free surface of the water in the tank. The head tank is generally connected into the system at the pump suction, as this minimizes the chance of air being draw into the system at the pump. The minimum height of the head tank may be based on maintaining pressure of fresh water in the heat exchanger above that of the seawater to ensure that in the event of a small internal lock developing seawater cannot enter the fresh water system. Alternatively, it may be based on the need for a minimum pressure to be maintained within the jackets to avoid cavitations effects. The closed systems usually need vents if steam pockets or air locks are not to cause trouble. V ent pipes of small-bore tube are lead from any local high point in the system to the top of the head tank for the release of air from the cooling water. A heater in the circuit facilitates warming of the engine prior to starting by circulating hot water. The temperature of the water entering the engine jackets is regulated by means of a by-pass across the jacket water cooler. The proportions of water passing through the cooler, or bypassing it are controlled by a three-way valve. The temperature is usually adjusted to maintain a constraint outlet water temperature from the engine regardless of the load or speed or the temperature of the seawater. The piston cooling system may be an open system which employs similar components with the closed system, except that a drain tank is used instead of ahead tank and the vent are then led to a hopper or tundish at the high point in the machinery space. The hopper serves as a visual flow indicator. A separate piston cooling system is used to limit any contamination from piston cooling glands to the piston cooling system only.89. The loop of the jacket cooling water is ______A. engine----heat exchanger----circulating pumps-----engineB. heat exchanger-----engine----circulating pumps----heat exchangerC. circulating pumps----heat exchanger-----engine-----circulating pumpsD. circulating pumps----engine-----heat exchanger----head tank90. A small head tank is provided in the closed jacket cooling water system for _____A. water expansionB. water make-upC. warming of the engineD. water expansion and make-up91. The head tank is connected to the closed circuit at _____A. engine inletB. pumps inletC. heat exchange inletD. engine outlet92. The jacket water temperature is regulated to maintain a constraint temperature of ___A. engine inletB. pumps inletC. heat exchanger inletD. engine outlet第二组Following a security incident, in which the response measures outlined in the Ship Security Plan (SSP) have been activated, there will be a thorough review of their effectiveness and details will be made available, on request, to persons duly authorized by the Ship’s Flag State Administration. The Ship Security Plan is not subject to detailed inspection (other than confirming its existence on the ship) by duly authorized officials of a port State unless there are “clear grounds” to believe that the ship as not in compliance with the requirement of SOLAS or the ISPS Code, and the only means to verify or rectify the non-compliance is to review the relevant sections of the Plan. In such cases, access to the Restricted parts of the Plan relating to the non-compliance is exceptionally allowed, but only with the consent of the Flag State, or the master, If the master, in his professional judgment, believes that such “clear grounds” exist, and allowing access to relevant sections of the Restricted part of the Plan might resolve the situation, such access can be exceptionally granted. However, this should be immediately reported by the ship to the Company Security Officer (CSO). If access to the Restricted part of the Plan is denied by the master, this should be immediately reported by the ship to Company Security Officer for guidance and reference to the Flag State.The Confidential part of a SSP cannot be subject to non-flag State inspection unless otherwise agreed by the contracting governments concerned. Any such request or demand by ort state officials to view sections of the confidential part of the Plan will be immediately reported by the ship to the Company Security Officer for guidance and reference to the flag State before any details are revealed to non-flag State officials. The Confidential provisions, which from an integral part of this Plan, are held by the Ship Security Officer (SSO)93. After security incident, the revision of the SSP will made by ______A. the SCOB. the SSOC. persons duly authorized by the Ship’s Flag State AdministrationD. information not given94. Which statement is True?A. The Port State Control Officer has no right to check a SSPB. The M aster has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on boardC. The Confidential part of a SSP can never been subject to non-flag StateD. Even the flat State has no right to check the SSP thoroughly95. The Restricted parts of a SSP are kept on board by ______A. the CSOB. the SSOC. the Flag StateD. the master96. After the SSP being checked by a duly authorized officials of a port State, whom should be reported to by the ship immediately?A. Port StateB. Flag stateC. The CSOD. The Administration01-10CBACB DDBAA11-20BCACC BBDBA21-30C(A)BABD(B) DDCCA31-40DCBCB CDABB(D)41-50DCABA DBBCB(A)51-60AACCB DCACB61-70ACBDC DDBDC71-80BDAAB DBCDC81-90BCCCD CBAAD(A)91 BDCDBC 带括号的答案不确定。

轮机大管轮英语真题44期

中华人民共和国海事局2007年第6期海船船员适任统考试题（总第44期）科目：轮机英语试卷代号：803适用对象：无限/近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至68题，每题1分，第69题至76题，每题1.5分，第77题至78题，每题10分.一、单项选择题1. The trend nowadays is to build the frame box as a separate fabricated construction and then, after stress relieving and machining the mating surfaces, to mount it on the . This has theadvantage of saving weight.A. seatingB. bed-plateC. entablatureD. cylinder block2. A two stroke diesel engine exhaust temperature will be lower than a four stroke diesel engine of the same displacement because the .① MEP is lower and the scavenging air is cooling the exhaust gases② valve overlap in a four strokeA. ①B. ②C. ① and ②D. Neither ① nor ② is correct3. Theoretical perfect combustion in a diesel engine yields by-products of .A. aldehydes and carbon dioxideB. water vapor and carbon monoxideC. nitrogen and carbon monoxideD. water vapor and carbon dioxide4. The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known asA. mechanical lubricatorB. lubrication functionC. forced feed systemD. bearing lubrication5. In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the .A. governor droopB. speeder spring tensionC. fuel rack lagD. load on the engine6. Diesel engines are started by supplying into the cylinders in the appropriate sequence for the required direction.A. cooling waterB. compressing airC. compressed airD. cylinder oil7. Which of the following devices is a common basic element with nearly all mechanical governors?A. Power pistonB. Control rackC. Weights acted on by centrifugal forceD. Isochronous（同步的）droop spring8. Injectors for use with heavy fuel oil must be cooled by either water or light oil to .A. prevent heat corrosion to internal componentsB. increase fuel delivery rate and economyC. prevent pre-ignitionD. avoid carbonization of the nozzle tips9. Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an .A. over-speed tripB. audible/visual alarmC. the ships/boats general alarmD. reserve oil storage tank 10. If clearance between a piston and the cylinder wall is excessive, piston slap will occur. The slap itself is caused by .A. alternation of side thrustB a breakdown of the lube oil film on the cylinderC. worn piston boss piston pin bearingsD. fluctuating gas pressure in tile combustion space11. The major cause of fuel pump and injection system problems is .A. improper adjustmentsB. contaminated fuelC. kinked fuel linesD. excessive engine vibration12. At least ___ cylinders in four--stroke engine will be configured to ensure that the engine can started with the crankshaft at whatever position.A. 6B. 2C. 12D. 813. The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause?A. Faulty thermostatic bypass valve.B. Eroded zinc pencils in the heat exchangerC. Steam formation in the expansion tank.D. Excessive leakage from jacket water pump seals.14. Crankcase explosions in propulsion diesel engines result from .A. the splashing of lubrication oil by the crankshaftB. the dilution of crankcase oil with particles of combustionC. broken fuel lines spraying oil on the crankcaseD. the ignition of unburned fuel and air in the crankcase15. Lubrication for the main reduction gears used with diesel engines is usually supplied by .A. oil from the main engine sumpB. an independent lube oil systemC. the stern bearing head tankD. the stem bearing sump tank16. Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed .A. apparent slipB. true slipC. pitchD. propulsive efficiency17. One of the most common causes of reduction gear failure is gear wear caused by scoring as a result of .A. surface fatigue of the gearsB. an inadequate lube oil filmC. plastic flow of the gearsD. fretting corrosion from water18. The heat identified by only a change in temperature is known as .A. sensible heatB. latent heatC. total heatD. residual heat19. The expansion valve used in a refrigeration system regulates the .A. superheat of the gas leaving the compressorB. back pressure in the evaporatorC. temperature in the refrigerated spaceD. degree of superheat of the gas leaving the evaporator20. A thermostatic expansion valve is properly controlling evaporator superheat. Adjusting this valve to lower the superheat will result in a/an .A. evaporator pressure decreaseB. evaporator coil over-feedC. evaporator capacity increaseD. expansion valve diaphragm rupture21. In the refrigeration system, a shortage of refrigerant is indicated by .A. the compressor short cycling on high pressure cut out switchB. high suction pressureC. high head pressureD. bubbles in the sight glass22. If a refrigeration system were short of refrigerant, the condition would result in .A. continuous running of the compressorB. high suction pressureC. high discharge pressureD. short cycling of the compressor on the water failure switch23. If the suction pressure at the refrigeration compressor is below normal, the cause can be .A. refrigerant overchargeB. overfeeding by the expansion valveC. a restricted suction strainerD. due to short cycling of the compress24. A centrifuge arranged to separate two liquids is known as .A. an oily water separatorB. a purifierC. a centrifugal compressorD. a clarifier25. If the bowl of a disk type centrifugal purifier when operated as a separator is not primed, the .A. oil has a tendency to emulsify in the bowlB. purifier will act as a clarifier at the discharge ringC. oil will be lost through the water discharge portsD. oil solids will be deposited only at the intermediate top disk26. Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors27. The usual number of single-acting pistons used in a variable stroke axial-piston pump is .A. 3 or 5B. 5 or 7C. 7 or 9D. 9 or 1128. The follow-up gear on an electro-hydraulic steering gear .A. relieves excessive fluid pressureB. takes the pump off stroke when the desired rudder angle is attainedC. allows for rudder movement faster than the movement of the ship'sD. returns the rudder to amidships when the wheel is released.29. While inspecting the steering system at sea, you should check for .A. air bubbles in the sight glassB. any leaks in the systemC. over-travel in the rudder angle indicatorD. lost motion in the rams30. After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?A. The relief valves in the system should be readjusted.B. The filters and strainers should be checked frequentlyC. All system pressure should be readjusted.D. The system should be drained and renewed with a fluid of different operating characteristics.31. Before performing any maintenance on a hydraulic system storing energy in an accumulator, you should .A. pressurize the system to test for leaksB. bleed off all pressure within the systemC. operate the machine until it reaches normal temperatureD. disconnect the pump pressure control switch32. The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the .A. prime mover speedB. exciter output voltageC. load on the alternatorD. number of poles33. The field coils and the armature . This is in fact the arrangement adopted for large, heavy duty alternators.A. are stationary / rotatesB. are stationary /is stationaryC. rotate / is stationaryD. rotate / rotates34. You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow direction. This indicates that the frequency of the incoming machine is .A. higher than the bus frequencyB. lower than the bus frequencyC. file same as file bus frequency but out of phase with itD. the same as the bus frequency, and the circuit breaker may be closed at nay pointer position35. The frequency of an AC generator is controlled by the ___.A. rheostatB. governorC. exciterD. capacitor36. Electrical supply is always needed even if only for lighting so after a ship goes into service it is extremely rare for the main bus-bars to be dead, it therefore follows that the bus-bars are continuously alive the life of the ship.A. alongB. withC. throughoutD. for37. After a ship enters service it is for the main bus-bar to be made dead.A. usuallyB. commonlyC. exceptionalD. unavoidably38. The difference between measured and desired values is called .A. make-upB. desired valueC. deviationD. set value39. The unit of electrical resistance is the .A. ampereB. voltC. wattD. ohm40. You must take good care of the drainage cock of the air control system. Because lead scale formed which might malfunctions the pilot control valve and other instruments.A. the temperatureB. the rustC. the pressureD. the humidity41. The mode of control employed by an alarm circuit is a .A. two position controlB. single speed floating controlC. proportional speed floating controlD. reset control42. With UMS, when the engine room is unwatched will control the main engine.A. the bridge officer on watchB. the chief engineerC. the duty engineerD. the duty motorman43. Before "stand by" is rung on the engine telegraph, it is usual to give the main diesel engine a brief trial ahead and astern.A. with powerB. on powerC. with airD. on air44. When under maneuvering conditions with the machinery being manually operated the control unit or console should beA. automatically controlledB. continuously mannedC. off powerD. continuously unmanned45. Which of the listed conditions can be considered as the single greatest cause of accident?A. SpeedB. Excessive knowledge or skillC. Human errorD. Excitement46. A fire in a pile of dunnage would be classified as a .A. Class 'A'B. Class 'B'C. Class 'C'D. Class 'D'47. Which of the listed fire extinguishers cannot be easily recharged aboard ship?A. Soda acidB. Carbon dioxideC. Dry chemicalD. cartridge-operated Foam48. CO2 extinguishes a fire by .A. a blanket of bubbles formed on theB. smotheringC. coolingD. isolating the heat from the fuel49. As a duty engineer, as soon as your hear the fire emergency signal, you should ensure that the .A. ring buoys are thrown overboardB. engines are stoppedC. fire pumps are startedD. life preservers have been issued to everyone50. To safeguard the operator and other personnel working on or near a hoisting operation, which of the following precautions should be observed?A. Keep a load on the hoist until all personnel are finished working.B. Set the load on a movable dolly when transportation may be needed.C. Have one man keep a hand on the load to steady it.D. Insure that the lifting gear capacity is not exceeded.51. If a used lube oil analysis indicates excessive chromate content, this means .A. air filtration is inadequateB. engine coolant is leaking into the lube oilC. fuel oil is leaking into the lube oilD. the piston rings are excessive worn52. Emulsion oils and sodium nitrite are both approved additives, but the latter cannot be used if any pipes are or if ally soldered joints exit.A. chromedB. weldedC. galvanizedD. bolted53. The tool is used in precision work to smooth or enlarge a slightly undersized hole.A. round outB. round fileC. reamerD. hole driller54. When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?A. The propeller hub taper and shaft keyway should be inspected for cracks or corrosion.B. The stern bearing alignment with the stern frame should be checked.C. The interior of the stern tube should be inspected for leaks.D. The shaft liner should be removed and inspected for cracks.55. The depth of the ship below the waterline measured vertically to the lowest part of the hull is called .A. trimB. leanC. draftD. tonnage56. The additional mark in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A. BRCB. MCCC. AUT-0D. AUT-l57. Oil Pollution Regulations require any transfer or discharge of oil or oily mixtures to be recorded in the .A. bridge logB. Master's logC. engine room logD. oil record58. The International Oil Pollution Prevention Certificate is valid for a period of .A. one year from the date of issueB. five years from the date of issueC. three years from the date of issueD. four years from the date of issue59. During PSC inspection related to the ISM Code, of the Safety Management System (SMS) should be carried out if clear grounds are established.A. a less favorable inspectionB. a more favorable inspectionC. a less detailed inspectionD. a more detailed inspection 60. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the .A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List61. STCW78/95 Convention states that the officer in charge of the engineering watch is the representative.A. ship-owner'sB. master'sC. chief engineer'sD. manager's62. All engineer officers and engine room ratings shall be aware of the serious effects of operational or accidental pollution of the marine environment and shall take all possible ____ to prevent such pollution, particularly within the framework of relevant international and port regulations.A. steps B, procedures C. precautions D. programs63. The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the __ of operation when notified that the ship is in congested waters.A. manual modeB. automatic modeC. remote modeD. follow-up mode64. In the event of a small bunker oil spill on deck occurring while bunkering, you should .A. wash down the area immediately with a fire hoseB. wash down the area with keroseneC. cover the area with absorbent materialD. cover the area with foam65. A segregated ballast system is a system where .A. all ballast is processed through the oily water separatorB. ballast is taken on and discharged through a separate main deckC. ballast and cargo tanks are separated by cofferdamsD. all ballast lines, tanks, and pumps are independent of those used for oil66. The SOLAS Convention in its successive forms is generally regarded as the most important of all international treaties concerning the of merchant ships.A. pollutionB. economizationC. safetyD. efficiency67. The objectives of the ISM Code are to ensure ①safety at sea②prevention of human injury or loss of life③avoidance of damage to the marine environment and to propertyA. ①B.②C.②③D.①②③68. means the level for which appropriate additional protective security measures shall be maintained for a period of time as a result of heightened risk of a security incident.A. Security level 1B. Security level 2C. Security level 3D. Security level 4二、关联题（关联题题干下有4个小题，每小题4个选项）第一组An automatic system usually consists of a control system and an information system. A control system is a system which measures the condition of some entity and, with the information, governs the state of a variable; i.e., speed, temperature, pressure, position, etc. The open-loop system is the simplest form a control system may assume. It is distinguished from the closed-loop system by the lack of an input which measures the state of the controlled variable; such an input is called a feedback. In modern ships the open-loop system has practically disappeared and the closed-loop system which operates with a feed-back is extensively used. An information system serves the parallel function of monitoring system or plant performance. The monitoring function may serve a number of purposes; specifically it may indicate values of controlled variables to guide remote control operations, w arn ofoff-limit conditions and provide record of performance. In many cases a visual and audible alarm may be provided to warn of off-limit conditions on board ship and, associated with this, the important variables will be recorded on demand. The automatic control system can be more sophisticated by incorporating digital-processing equipment, that is, a computer. This computer is usually fed with signals from all sensors. It scans the values of the sensors and generates alarm signals for off-limit conditions, acting as a super-supervisor. Sometimes, it can even make necessary and take the necessary action to optimize performance without human intervention.69. The closed-loop system differs from the open-loop system byA. the lack of a feedbackB. the presence of a feed backC. the lack of a computerD. the presence of a computer70. A feedback is an input ____A. which governs the state of a variableB. which provides a visual and audible alarmC. which indicates values of controlled variablesD. which measures the state of the controlled variable71. The monitoring function may serve all of the following purposes exceptA. instigating corrective actionB. indicating values of controlled variablesC. warning of off-limit conditionsD. providing record of performance72. The word "off-limit" in the passage may mean .A. off-setB. off-stateC. within limitsD. beyond the limit第二组The only attention that heat exchanger should require is to ensure that the heat transfer surfaces remain substantially clean and the flow passages generally clear of obstruction. Indication that undue fouling is occurring is given by a progressive increase in the temperature difference between the two fluids, over a period of time, usually accompanied by a noticeable rise in pressure loss at a given flow.Fouling on the sea-water side is the most usual cause of deterioration in performance. The method of cleaning the sea water-side surfaces depends on the type of heat exchanger. With shell-and-tube heat exchangers, the removal of the header covers or, m the case of the smaller heat exchangers, the headers themselves, will provide access to the tubes. Obstructions, dirt, scale etc., can then be removed, using the tools provided by the heat exchanger manufacturer. Flushing through with fresh water is recommended before a heat exchanger is returned to service. In some applications, such as piston oil cooling, progressive fouling may take place on the outside of the tubes. Most manufactures recommend a chemical flushing pr6cess to remove this in situ~ without dismantling the heat exchanger.Plate heat exchangers may be cleaned by unclamping the stack of plates and mechanically cleaning the surface of each plate as recommended by the manufacturers. The plate seals may require replacement from time to time and here the manufacturers' instructions should be closely followed 73. By which of the following indication, can we conclude that the lube oil-sea water heat exchanger is unduly fouled?A. the heat exchanger lube oil inlet temperature loweringB. the heat exchanger sea-water outlet pressure riseC. the heat exchanger temperature difference between lube oil and sea water increasingD. the heat exchanger pressure difference between sea water inlet and outlet decreasing74. What is the most usual reason for the fresh water-sea water heat exchanger fouling in the sea side?A. lube oil sludge accumulating in itB. dirt and scale etc., formed on the surfacesC. deformation of the tubes and the shell or the platesD. lube oil leakage into sea-water side75. According to the passage, it is recommended that the heat exchanger side be cleaned by .A. flushing with chemical solvent without being dismantledB. brushing mechanically after being disassembledC. flushing with flesh water onlyD. flushing with clean oil only76. According to the passage, which of the following statement is not true?A. the heat exchanging surfaces should be kept substantially cleanB. the heat exchanger flow passages should be clear of obstructionC. seals for the plate heat exchanger needs to be renewed oftenD. the cleaning process of the plate heat exchanger should be done following our experiences only三、中译英（共2题，请将答案写在答题纸上）77. 在船舶以主机“正常全速”运行时，尽管速度设定及压力正常，转速逐渐下降，驾驶台控制立即转换至机旁控制。

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中华人民共和国海事局2009年第5期海船船员适任证书全国统考试题(总第48期)科目：轮机英语试卷代号：803适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至82题，每题1分，第83题至94题，每题1.5分。

一、单项选择题：1. The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is .A. they operate between 150 and 450 rpmB. they are connected to the propeller by gearingC. their smaller size and weightD. they can be connected directly to the propeller without gearing2. The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by .A. large conical springsB. compressed air pressureC. hydraulic pressureD. exhaust gas pressure3. One of the factors limiting the amount of toad which can be put on a modem marine diesel engine is the .A. governor sensitivityB. exhaust temperatureC. fuel injection pressureD. speed of the cam shaft4. The desirable properties or a marine fuel oil should inc lude .A. high flash point and high viscosityB. low flash point and high viscosityC. low heating value and high sulphur contentD. high heating value and low sulphur content5. As the plunger moves upwards in the barrel, injection will commence once the plunger basthe spill ports and the pressure builds up.A. opened upB. closed offC. lined upD. taken off6. In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces.A. all of the oil used by the engine through a filterB. some of the oil used by the engine through a filterC. some of the oil used by the engine through a centrifugeD. all of the oil used by the engine through a centrifuge7. Because the circulating water is in a closed loop, is installed to cater for expansion and contraction of the water at different conditions of operation.A. an expansion jointB. a drain tankC. a head tankD. a contraction tank8. The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the .A. inlet nozzle ringB. turbine wheel bladeC. diffuser passagesD. inlet volute9. is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.A. An air receiverB. An operating valveC. An automatic valveD. An air distributor10. Diesel engines driving alternators operating in parallel must maintain a set frequency regardless of load changes. The governor characteristic used to accomplish this is known as .A. actuationB. sensitivityC. compensationD. promptness11. By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a .A. tachometerB. pyrometerC. dynamometerD. calorimeter12. When the ship is going to enter into the harbor, ____.A. change from heavy fuel oil to diesel oil for main engineB. pumping out bilge waterC. change sea chest from high level one to lower level oneD. test emergency generator13. If the jacket water temperature rises rapidly above normal in a diesel engine, you should first .A. place standby cooler in operationB. reduce engine toadC. check thermostatic valveD. clean sea water strainer14. Air cocks, usually positioned at the in a circulating system, is used to get rid of the air in the system.A. bending jointB. expansion tankC. weldD. the highest point15. Which of the following conditions could contribute to the cracking of a diesel engine cylinder head?A. Leaking seal ringB. Insufficient heat transfer from the exhaust valvesC. Blocked cooling water passages to the headD. Excessive scavenging air provided to the engine16. of an engine crankshaft can be detected by measuring deflections of' crank webs for each unitof the engine.A. MisalignmentB. LengthC. StrengthD. Stresses17. can be a direct cause of faulty operation of diesel engine fuel injection nozzles.A. Excessive fuel nozzle holder coolingB. Sediment in the fuel supplyC. Distortion of the fuel spray patternD. Improper atomization of the fuel18. When fuel is injected late into a diesel engine cylinder .A. the exhaust will be clearB. fuel consumption will be lowC. all the fuel will be burned at top dead centerD. fuel consumption will be high19. A large change in ambient temperature, or using an oil of a viscosity different than the one recommended by the manufacturer in a mechanical hydraulic governor, will result m the need to adjust the .A. pilot valve openingB. compensating needle valveC. compensating spring tensionD. accumulator spring tension20. Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system?A. Baffle plates that have been bent during prior removal.B. Leaks m the cooler tube nest.C. Operating the engine while maintaining a high sea water outlet temperature.D. A punctured sea water strainer supplying cooling water to the heat exchanger.21. If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to the engine.A. stopB. startC. speed upD. slow down22. In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?A. Noise coming from that air starting valve.B. Continuous operation of the starting air compressor.C. Zero air pressure in the air starting system.D. Overheated starting air pipe to the cylinder head.23. Engine operating conditions may be indicated by the color of the exhaust smoke. Black smoke could indicate .A. an insufficient speed droop settingB. an overloaded engineC. clogged drain holes in the oil control ringsD. complete combustion24. In reducing engine speed to an efficient propeller speed by the use of reduction gears, ..A. speed and torque are both reducedB. speed is reduced and torque remains unchangedC. speed is reduced and torque is increasedD. speed is sometimes unchanged while torque is increased25. Which of the following statements represents an advantage of an electromagnetic clutch?A. Large misalignments can be tolerated between the shaft and engine couplingB. Slip is held to a minimum when reversing shaft rotationC. Engine torsional vibrations to the driven shaft are eliminatedD. It aids in maintaining power factor26. _____ of the controllable pitch propeller enables the blades to be moved to change the pitch angle.A. An external mechanismB. An internal mechanismC. An interlock deviceD. A hunting gear system27. When sailing ill cold zones, should be drained of water.A. the ventilation pipeB. the water line for fire fighting on the deckC. the fuel oil lineD. the water supplying line in bath room28. If anything abnormal be found on the load change of main engine when the ship is entering in shallow waterway, before taking measures the engineer on duty should .A. stop main engine immediatelyB. ask the captain and the chief engineer's permission for stopping the engineC. inquire the bridge for the situation initiativelyD. stop engine and inform bridge29. Pitted reduction gear teeth having a deep blue color with evidence of overheating have been operated with .A. excessive speedB. improper warm-upC. extreme misalignmentD. inadequate lubrication30. Which of the following modes of heat transfer does NOT require any physical contact between a warmer and a cooler substance?A. RadiationB. ConductionC. Natural convectionD. contact directly31. To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the .A. suction service valve as a vaporB. suction service valve as a liquidC. discharge service valve as a vaporD. charging valve as a liquid32. If the superheat value of a thermostatic expansion valve is set too low, the _.A. the suction line will be abnormally cold and liquid may slug back to the compressorB. the suction line will be hot due to a reduced amount of refrigerant returning to the compressorC. the temperature of the refrigerant within the condenser will remain the sameD. the temperature of the refrigerant passing through the sub-cooler will decrease 33. Sweating of the refrigeration system compressor crankcase is caused by .A. too much superheatB. insufficient superheatC. suction pressure too lowD. excessive refrigerant returning to the compressor34. If a refrigeration compressor is short cycling on high head pressure, you should .A. purge the condenser if the waterside is dirtyB. check for proper water flow through the condenserC. increase the high pressure cutout settingD. reduce the cooling water flow35. Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?A. A shortage of liquid refrigerant.B. Excessive frost on the evaporator.C. Excessive condenser cooling water.D. Insufficient condenser cooling water flow.36. For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the .A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface37. can cause oil flow from water outlet of the oil purifier.A. Oil inlet valve opening too quicklyB. Oil temperature little higher than normalC. Diameter of gravity disc too smallD. Viscosity of oil little lower than normal38. Check valve isn't used to control .A. direction of oil flowB. back pressure of return oilC. bypass of filterD. high pressure overflow39. Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors40. With reference to a two-ram actuating mechanism, which one of the following statement is FALSE?A. The rams work inside cylinders.B. The cylinders have glands sealing their open ends.C. The rams are connected to a cross-head.D. The cross-head is mounted on the rudder stock.41. If a heavy sea strikes the rudder, the shock is transmitted through ___ to the rams, this cause a sudden increase in oil pressure in one of the cylinders.A. the control rodB. the hunting gearC. the floating ringD. the tiller arm42. The viscosity of' an oil is a measure of its .A. weightB. internal frictionC. demulsibilityD.S.A.E. number43. One function provided by a hydraulic accumulator is to ___.A. provide an area where air can separate from the oilB. provide an area to separate solid contaminants from the oilC. act as an oil and water separatorD. absorb shocks occurring in the system44. Which of the following components are used to convert alternating current produced in the generator windings to direct current?A. Armature and equalizerB. Commutator and brushesC. Rotor and interpolesD. Field and exciter45. The frequency of an alternator at a given r/min is determined by the .A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage46. The operation of two alternators requires the voltages to be equal and also in phase.A. parallelingB. series-mountingC. runningD. controlling47. The power factor of an AC generator operating singularly is determined by the .A. connected loadB. prime mover speedC. field excitationD. generator's rated voltage48. When you are making a high potential test on a piece of repaired electrical machinery, a rise in leakage current indicates .A. good insulationB. bad insulationC. high insulation power factorD. a high slot discharge factor49. For the power is supplied by main switchboard directly not through sub-board.A. saving network costB. improving the reliability of supplying power to important loadC. preventing sequence reversingD. increasing the power Factor of important load50. The emergency generator or emergency battery is connected to on most large ships.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards51. Which of the following definitions can be used to define the term 'offset' as a characteristic of controller action?A. The period of time in which the set point and the control point coincide.B. The periodic change between the set point and the control point.C. The variable difference between the set point and the control point.D. The constant difference between the set point and the control point.52. A manometer is used to measure .A. pressureB. temperatureC. volumeD. specific gravity53. Which of the listed devices may be used as a digital device?A. variable resistorB. diodeC. strain gaugeD. thermistor54. UMS are mainly unattended overnight and during this time should have control of the main engine.A. the chief engineerB. the engineer on cabin watchC. the bridge officer on watchD. the master55. Before starting the engine, the air bottle should be ____.A. pumped upB. loadedC. dischargedD. closed56. During UMS rounds, a duty engineer notices that the fuel oil overflow observation glass is full of oil. Should he .A. Stop all F.O. transfers immediately, and inform the chief engineer.B. Make a sounding of the F.O. overflow tank and decide if there is enough capacity to leave ituntil the following morning.C. Call a motorman and have him sound the F.O. overflow tank periodically during the night.D. start the F.O. purifier57. When received the order "Finished With Engine", which of the following operations is wrong?A. stop the L.O pump, S.W pump, jacket water cooling pump immediatelyB. stop the F.O booster pumpC. engage the turning gear, turn the main engineD. open the main engine scavenge air trunk's drain cocks58. Which of the following is NOT a recommended safe practice?A. Securing equipment against slipping or drifting.B. Operating machinery at its recommended speed.C. Repairing loose handles on tools before using.D. Using tools for purposes for which they are not designed.59. A fire involving aluminum powder would be a class .A. 'A' fireB. 'B' fireC. 'C' fireD. 'D' fire60. The three basic components of a fire are chain reaction, heat, fuel, and ___.A. carbon monoxideB. oxygenC. carbon dioxideD. any gaseous substance61. Why is it necessary to warn engine room personnel before activating the fixed CO2 system?A. To make them aware there is a fire.B. To let them know they should leave the engine room.C. To prevent possible injury from frostbite.D. To make them aware that ventilation will automatically stop.62. While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take first?A. Secure the burners then proceed to your assigned boat station.B. Start the fire pump and establish flow to the fire main.C. Open the guardian valve and standby to maneuver.D. Open the master control valves on the fixed CO2 system.63. Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an .A. Orsat apparatusB. flame safety lampC. Halide torchD. combustible gas indicator64. Which of the following statements is correct regarding an oil with a high viscosity index?A. A large change of viscosity occurs with a minor change in temperature.B. No change in viscosity occurs with any change in temperature.C. Very little change in viscosity occurs with a significant change in temperature.D. The viscosity of the oil increases with an increase in temperature.65. The purpose of treating the cooling water of the diesel engine is to . I. resist the scale formation in the cooling chamber II. lubricate the engine part III. increase thermal capacity IV. resist corrosionA. I +IIB. II + IIIC. III + IVD. I +IV66. After receiving the stores, you should sign on the _____.A. engine logbookB. delivery docketC. store listD. maintenance book67. , where a ship is refitted for a different use.A. Voyage repairsB. Routine dockingC. Damage repairsD. Conversion68. During the dock repair, when installing the tail shaft and propeller, should be on the spot for supervising.A. chief engineerB. engineerC. captainD. any member of the engine department69. does not belong to the mooring trial item.A. Generator sets running testB. Shafting intensity testC. The function test for pumps that serving for M.E.D. M.E. safety devices test70. The additional mark in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is watched by duty personnel.A. BRCB. MCCC. AUT-0D. AUT-171. The core item in the Oil Record Book Part I is , and its main content is .A. Item A, BALLAST OR CLEANING OF FUEL OIL TANKSB. Item B, DISCHARGE OF DIRTY BALLAST OR CLEANING WATER FROM FUEL OILTANKS REFERRED TO UNDER SECTION(A)C. Item C, DISPOSAL OF OIL RESIDUES(SLUDGE)D. Item H, BUNKERING OF FUEL OIL72. During the PSC inspection, under the provisions of SOLAS 74, which one be regarded as clear grounds for ships' detainment?A. failure of proper operation of propulsionB. paint peeling off the uptakeC. no operation procedures for file oil separatorsD. damaged sanitary pump73. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the .A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List74. When deciding the composition of the engineering watch, which may include appropriately, many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief' engineer75. When the machinery spaces are in the periodic unmanned condition, shall be immediately available and on call to attend the machinery space.A. the chief engineerB. the designated engineer from shipyardC. the designated duty officer in charge of the engineering watchD. the designated surveyor from classification society76. When anchoring in unsheltered anchorage, chief engineer should consult with captain .A. if the ship must be stand byB. if take bunkeringC. if keep-watching as in voyageD. if the ship must anchor two anchors77. The scuppers should be plugged .A. only if fixed containment is not usedB. only if portable containment is not usedC. only if fixed containment drains are openD. whenever the vessel is being bunkered78. Which statement regarding garbage disposal is correct?A. Records for ground garbage disposal are not required when disposal into the sea occurs morethan 25 miles offshore.B. Discharging or transfer of garbage while in port to a shore facility must be recorded.C. Maintaining records for the incineration of garbage aboard ship is not required.D. The recording of garbage disposal should include the approximate weight.79. The alarm signal for engine room catching fire is a blast of random bell followed by .A. two knocksB. three BlocksC. four knocksD. five knocks80. According to the ISM CODE, the "person" in the phrase 'to designate a person or persons ashore having direct access to the highest level of management' refers to __A. the manager of the shipping companyB. the master of the shipC. the designated person on board shipD. the designated person ashore81. The ship security officer shall have knowledge and have received training, taking into account the guidance given in Part B of .A. the ISM CodeB. the ISPS CodeC. the IBC CodeD. the IGC Code82. In order to limit the introduction of alien species by ship, was adopted on 13 Feb, 2004 at the IMO.A. Revised MARPOL annex IB. Revised MARPOL annex IIC. International convention for the control and management of ships' ballast water and sedimentsD. ISPS Code二、关联题（关联题题干下有4个小题，每小题4个选项）第一组： The Wartsila 50DF operates on the lean-bum principle: the mixture of air and gas in the cylinder has more air than is needed for complete combustion. Lean combustion reduces peak temperatures and therefore NOx emissions. Efficiency is increased and higher output is reached while avoiding knocking. Combustion of the lean air-fuel mixture is initiated by injecting a small amount of LFO (pilot fuel) into the cylinder. The pilot fuel is ignited in a conventional diesel process, providing a high-energy ignition source for the main engine. To obtain the best efficiency and lowest emissions, every cylinder is individually controlled to ensure operation at the correct air-fuel ratio and with the correct amount and timing of pilot fuel rejection. Wartsila has developed a special electronic control system to cope with the demanding task of controlling the combustion in each cylinder, and to ensure optimal performance in terms of efficiency and emissions under all conditions by keeping each cylinder within the operating window. Stable and well-controlled combustion also contributes to less mechanical and thermal load on the engine components. Current stringent emission regulations demand the reduction of NOx emissions. In an internal combustion engine this means controlling peak temperature and residence time, which are the main parameters governing NOx formations. In the Wartsila 50DF engine, the air-fuel ratio is very high (typically 2.2). Since the same specific heat quantity released by combustion is used to heat up a larger mass of air, the maximum temperature and consequently NOx formation are lower. The mixture is uniform throughout the cylinder since the fuel and air are premixed before introduction into the cylinders, which helps to avoid local NOx formation points within the cylinder. Benefiting from this unique feature, NOx emissions from the Wartsila50DF are extremely and comply with the most stringent existing legislation.83. What is the combustion feature of the Wartsila 50DF?A. Lean air in the cylinderB. Excessive fuel in the cylinderC. Excessive air in the cylinderD. Spark ignition84. For the Wartsila 50DF, the complete combustion compared with the lean-combustion can decrease the following results .①Exhaust temperatures ②NOx emissions ③Propeller efficiency ④Output⑤Cylinder knocking ⑥Fuel supplyA.①②B. ③⑥C. ④D.④⑤85. Which system should be supplied to obtain the best efficiency and lowest emissions?A. Lean combustion principleB. Fuel oil systemC. Electrical control systemD. Electronic control system86. What is the most advantage of the lean-combustion different from the routine combustion?A. Continue runningB. Well combustionC. Higher peak temperatureD. Lower holding time of Maximum temperature第二组：Magnetic pickup (MPU) sensors are devices which can be used in conjunction with electronic control modules for monitoring of parameters such as speed, direction of rotation and a variety of alarm conditions. MPU sensors are available in various sizes and types. Following are some guidelines for their selection on industrial engines. MPUs are located near a flywheel, camshaft or other type of gear with rotation relative to engine speed. The passing of the gear teeth through the MPU tip (pole) generates a voltage and frequency. This frequency is converted to a speed reference by a control module. It should be noted here that most MPUs will develop similar signals. However, the magnitude and strength of the signal is dependent on the size of the sensor in relation to the gear teeth, the clearance between the pole piece and the gear teeth, and various other factors. As a general rule of thumb, the following standards should be met:①Dimension of tooth top surface should be equal to or more than the pole piece diameter.②Tooth height should be equal to, or more than the space between teeth.③The space between teeth should be approximately three times the pole piece diameter.④Air gap (clearance) between tooth and pole piece should be between 0.015" to 0.030". MPUs normally have 3/8", 5/8" threads and 2", 3" and 4" lengths. Determining which size is appropriate depends on the space available for installation, the availability of pre-drilled holes and consideration to those rules mentioned above. In most cases, these will be the only factors affecting the selcetion of a MPU.87. MPUs can be used to .①sense speed ②supply alarm ③sense direction of rotation.A.①②B. ②③C. ①③D. ①②③88. Which of the following factors will affect the strength and magnitude of the signal?A. The number of the gear tooth.B. The clearance between the pole pieces.C. The size of the sensor.D. The MPUs thread.89. According to the passage, we can infer that the pole piece diameter must be tooth height.A. as same asB. much less thanC. much more thanD. not confirmed90. Which of the following factors will affect the selection of a MPU? ①the pole piece length ②the availability of pre-drilled holes ③the space available for installation.A. ①②B. ②③C. ①③D. ①②③第三组：Following a security incident, in which the response measures outlined in the Ship Security Plan (SSP) have been activated, there will be a thorough review of their effectiveness and details will be made available, on request, to persons duly authorized by the Ship's Flag State Administration. The Ship Security Plan is not subject to detailed inspection (other than confirming its existence on the ship) by duly authorized officials of a port State unless there are "clear grounds" to believe that the ship is not in compliance with the requirements of SOLAS or the ISPS Code, and the only means to verify or rectify the non-compliance is to review the relevant sections of the Plan. In such cases, access to the Restricted parts of the Plan relating to the non-compliance is exceptionally allowed, but only with the consent of the Flag State, or the master. If the master, in his professional judgment, believes that such "clear grounds" exist, and allowing access to relevant sections of the Restricted part of the Plan might resolve the situation, such access can be exceptionally granted. However, this should be immediately reported by the ship to the Company Security Officer (CSO). If access to the Restricted part of the Plan is denied by the master, this should be immediately reported by the ship to the Company Security Officer for guidance and reference to the Flag State.The Confidential part of a SSP cannot be subject to non-flag State inspection unless otherwise agreed by the contracting governments concerned. Any such request or demand by port state officialsto view sections of the Confidential part of the Plan will be immediately reported by the ship to the Company Security Officer for guidance and reference to the flag State before any details are revealed to non-flag State officials. The Confidential provisions, which from an integral part of this Plan, are held by the Ship Security Officer (SSO)91. After a security incident, the revision of the SSP will made by .A. the CSOB. the SSOC. persons duly authorized by the Ship's Flag State AdministrationD. information not given92. Which statement is True?A. The Port State Control Officer has no right to check a SSPB. The Master has the right to refuse the request from a Port State Control Officer to check theconfidential part of the SSP on boardC. The Confidential part of a SSP can never be subject to non-flag StateD. Even the flag State has no right to check the SSP thoroughly93. The Restricted parts of a SSP are kept on board byA. the CSOB. the SSOC. the Flag StateD. the master94. After the SSP being checked by a duly authorized officials of a port State, whom should be reported to by the ship immediately?A. Port StateB. Flag stateC. The CSOD. The Administration。