轮机英语真题45期,甲类三管轮
轮机英语第45期1.These acid residues must be prevented from entering the crankcase otherwise the lube oil wouldbe _______A. contaminated B .emulsified C deteriorated D .oxidated2. The ratio of the brake horsepower to the indicated horsepower of a diesel engine is its _______A. thermal efficiencyB. mechanical efficiencyC. brake thermal efficiencyD. volumetric efficiency3. The cetane number of a diesel fuel oil medicates its _________A. viscosityB. acid contentC. heating valueD. ignition quality4. The greatest turbulence in a diesel engine cylinder is created by the ________A. shape of the combustion chamberB. fuel injection spray patternC. cylinder swept volumeD. degree of penetration of the fuel oil droplets5. The projection on a shaft designed to change circular motion into up and down or back and foremotion is called ______A. wheelB. crankshaftC. running gearD. cam6. A clearly visible benefit of RT-flex engines is their ________operation at all ship speeds.This isachieved by the superior combustion performance.A. shocklessB. smokelessC. no vibration D noiseless7. A main bearing consists of two shells which are secured by means of studs and______A. tie rodsB. through boltsC. lead wiresD. bearing caps8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of_________A. less even torqueB. higher cylinder head temperaturesC. fewer power strokes per revolutionD. greater weight/size requirements9. ________controls the fuel oil temperature in order to provide oil at the correct viscosity forcombustionA. The viscosity regulatorB. The temperature controllerC. The flow meterD. The pressure switch10. A lubricant often has to perform many duties in any situation, in addition to its fundamental job of__________A. resisting oxidizationB. reducing frictionC. promoting moving speedD. developing inertia11. Shaker, circulation, and spray are the three general methods used in _______A. pre-injection fuel oil treatmentB. lube oil filtrationC. lube oil purificationD. piston cooling12. Which of the diesel engine components listed increases air density and helps to improve engineoperating efficiency?A. ImpellerB. Air bottleC. Air cooler D Exhaust diffuser13. Each cylinder has one starting valve which is usually opened by air pressure and closed by__________.A. nuts and boltsB. new jointsC. spring forceD. sealing rings14. Which of the listed governor characteristics will greatly affect the load sharing relationshipbetween paralleled diesel generators?A. SensitivityB. PowerC. Speed droopD. Compensation15. A pyrometer is an instrument commonly used to measure_______.A. cylinder pressureB. flame intensityC. exhaust gas temperatureD. crankshaft axial alignment16. 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 high temperature alarm or ______ which will melt is used to guard against the explosion ofcompressor air pipelines.A. a flame trapB. a relief valveC. a fusible plugD. a bursting cap18. Great care is dedicated to the removal of ______from the scavenge air.A. gravityB. viscosityC. densityD. humidity19. 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 stern bearing sump tank20. The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust______.A. gas compositionB. gas temperatureC. pressureD. timing21. The _____ is fitted in pair one is the main valve the other the auxiliary or standby.A. main steam stopB. auxiliary steam stop valveC. feed check or control valveD. blow down valve22. Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, couldresult in _______.A. increased fuel consumptionB. increased feed-water consumptionC. fuel pump failureD. combustion control system failure23. Burner ignition failure in an automatically fired auxiliary boiler would be caused by _____A. a burned out solenoid in the oil supply valveB. high temperature excess airC. incorrectly setting the hot-well dump valveD. an incorrectly positioned burner snubber (缓冲器) relay24. Waterside scale in a fire-tube boiler may cause ______.A. increased heat transferB. fireside erosionC. high steam demandD. overheated tubes25. Throttling in the ________ line of a centrifugal pump involves the risk of the pump cavitationA. suctionB. exhaustC. pressureD. discharge26. Centrifugal pimp can be designed with a number of impellers _____ to attain a high final deliverypressure.A. at two ends of the same shaftB. opposite each otherC. parallelD. in series27. 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. To thoroughly pump out the bilges using a horizontally mounted centrifugal pump, the _____A. pump must always be primedB. volute must impart a radial and rotary motion of the waterC. suction side connection must guide the liquid to the lantern ringsD. stuffing box should not be allowed any water leakage29. Which of the listed conditions can lead to cavitation in a centrifugal pump?A. V apor pockets formed in the suction flow streamB. Rough casing volute surfacesC. Worn wearing ringsD. Heavy fluid in the flow stream30. Refrigerant entering the compressor of a refrigeration system should be in which of the followingconditions?A. Sub-cooled liquidB. Sub-cooled vaporC. Superheated vaporD. Liquid31. ______ is the circulation and refreshing of the air in a space without neccssarily a change of1temperature.A. RefrigerationB. Air conditioningC. V entilationD. Heating32. In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effectthe primary refrigerant can be increased by _____.A. increasing refrigerant pressure in the coilB. increasing chilled water flow through the coolerC. sub-cooling the refrigerant in the condenserD. superheating the refrigerant in the compressor33. If a plastic film insulation becomes damaged in air conditioning system,______ may form withinthe film.A. evaporationB. condensationC. liquefiesD. vaporization34. The resistance to the movement of the globule in oily water mixture depends on its size and the_________ of the fluid.A. pressureB. velocityC. gravityD. viscosity35. Because the flow rate of supply water pump is too large, oily water separator does not work well.Which of the following is not the reason.?A. the monitoring equipment is out of orderB. separating effect becomes badC. separating effect becomes bad and inner wall is contaminatedD. inner wall is contaminated36. Which of the following would not be burnt in an incinerator on board.A. waste oilB. waste clothesC. oil ragsD. plastic garbage37. Concerning the incinerator’s operating, 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℃D. the ash from incinerator can be dumped into sea no distance limitation38. _____ are used to digest the sewage to produce innocuous sludge in a biological sewage treatmentplant.A. anaerobic bacteriaB. aerobic bacteriaC. air bubblesD. disinfection chemicals39. A centrifuge arranged to separate two liquids is known as ______.A. an oily water separatorB. a purifierC. a centrifugal compressorD. a clarifier40. A centrifugal fuel oil purifier should be shut down if ______.A. more sealing water is neededB. the over clamp needs tighteningC. the purifier has a bad vibration when startedD. water is discharged from overflow line41.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 disk42. In a two-stage flash-type evaporator, excess brine in the first stage automatically passes_____.A. directly to the second stage feed heaterB. directly overboard through the brine coolerC. into the second stage flash chamberD. into the second stage vapor condenser43. In which of the areas listed would you expect to find the highest salt concentration in a flash evaporator?A. Distiller air ejector cooling mediumB. Saltwater heater dischargeC. First-stage internal feed boxD. Second-stage internal feed box44. Hydraulic control check valve can be used to ____ in the marine hydraulic mechanism.A. control the back pressure of return oilB. lock the oil lines under some conditionsC. permit oil flow with reversed directionD. Second-stage internal feed box45. The delivery rate of a variable stroke axial piston hydraulic pump is controlled by varying theposition of the _______.A. slide blockB. tilting boxC. pintleD. reaction ring46. The crane is usually mounted on a pedestal to offer adequate ________ to the operator.A. timeB. spaceC. lengthD. visibility47. Which problems can occur if the brake band lining of a wildcat brake becomes excessively worn?A. The driving engine will over-speed.B. The anchor will immediately dropC. The clutch will overheatD. The brake’s effectiveness will be reduced48. _______ with various arrangements of barrels are the usual mooring equipment used on boardships.A. CranesB. WinchesC. CapstansD. Windlass49. Overheating of a hydraulic system may be a result of _______.A. changing pump discharge pressure in response to normal load variationsB. a high oil levelC. incorrect fluid viscosityD. continued slow re-circulation of the oil50. In the design of hydraulic piping and equipment consideration is given to minimize turbulence inthe hydraulic fluid as this will cause _______.A. molecular fluid vibrationB. energy lossesC .wide pressure variations D. mechanical damage to control valves51. One factor that determines the frequency of an alternator is the ________.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage52. What will be the phase angle relationship of a six-pole, three-phase, rotating field generator?A. 60B. 120C. 180D. 36053. To parallel an incoming machine to a running machine therefore it is necessary to ensure firstlythat ________.A. two frequencies must be brought into phaseB. the incoming machine accepts a small amount of loadC. the running machine must be unloadD. both voltages are equal54. The frequency of an alternator is controlled from the main switchboard by adjusting the _______.A. frequency meterB. voltage regulatorC. governor controlD. sychroscope switch55. ______ is provided to alternators, in the event of prime mover failure to ensure that the alternatordoes not act as a motor.A. Reverse current protectionB. Reverse power protectionC. Synchronising deviceD. Frequency meter56. _______ is used to control, modulate, monitor and protect generator set.A. Control panelB. Load panelC. Paralleling panelD. Busbar57. Which of the listed sections of an emergency switchboard is used to supply power for alarmsignals 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 bus58. 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. Which of the electrical properties listed will always be the same for each component in a parallelcircuit?2A. ImpedanceB. CurrentC. ResistanceD. V oltage60. In a series circuit, which value will remain unchanged at all places in the circuit?A. V oltageB. CurrentC. ResistanceD. Inductance61. In an alternating current electrical system, a low system power factor is a direct sign of _____A. wasted energyB. efficient operationC. a short in the exciter field windingsD. an excessive number of minor system grounds62. Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will ________.A. result in immediate power outagesB. damage circuit breakersC. appear on the ground detection systemD. damage insulation and may cause outage63. If the main engine starting consecutively failed _______ times, the cause should be found and the trouble eliminated before next starting.A. 2B. 3C. 4D. 564. The normal color of the exhaust gas of the diesel should be _______.A. achromatism or thin grayB. thin whiteC. sky-blue D black65. After finished with engine, which of the following cannot be shut off by the duty engineer?A. fuel valveB. the main starting valveC. the sea chestD. the main sea water pump inlet valve66. Before the seas get rough, it is a good safety practice to _______.A. secure loose gearB. move quickly about the shipC. increase lightingD. shutdown auxiliary equipment67. A class “C” fire would occur in ________.A. beddingB. pipe insulationC. paintD. a generator68. The most likely place for a fire to start through the process of spontaneous combustion is in _________.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin69. Which of the fire extinguishers listed is to be weighed annually and sent ashore for recharging if the weight loss exceeds 10‰of the weight of a full charge?A. FoamB. Soda acidC. Dry chemicalD. Carbon dioxide70. Which of the following components provides a direct source of seawater for the fire main system?A. Rose boxB. Sea chestC. Sluice valveD. Fire pump stuffing box71. 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 heartbeat72. Obviously, for a given fuel oil, its pour point is _______ its cloud point.A. lower thanB. higher thanC. as same asD. better than73. ____, where the ship is docked for hull coating renewal, and for any other required underwater work to be carried out, when the opportunity is taken to make other repairs.A. V oyage repairsB. Routine dockingC. Damage repairsD. conversion74. When the dock is refilled with water after docking repair, the first work which should be done by engineer department is ________.A. igniting auxiliary boilerB. releasing air in sea water systemC. starting generatorD. cut off shore power75. The correct tightening is obtained by the use of ______ to measure the extension given to the bolts.A. pressure gaugesB. thermometersC. stretch gaugesD. bridge gauges76. In the Oil Record Book, a comprehensive list of operational items are grouped into operational sections Each section is codified by a/an ________A. numberB. abbreviationC. letterD. number, abbreviation and letter77. Under MARPOL Code the ship to which it applies has to carry_______.A. an International Ship Security CertificateB. an International Oil Pollution Prevention CertificateC. a Safety Management CertificateD. an International Ballast Water Management Certificate78. 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 book79. “Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a________A. substandard shipB. standard shipC. over-standard shipD. reference ship80. STCW 78/95 Convention shall apply to seafarers _____ on board seagoing ship entitled to fly theflag of a Party.A. servedB. servingC. surveyedD. surveying81. The officer in charge of the engineering _______ the watch to the relieving officer if there isreason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effectively.A. shall take overB. shall not take overC. shall band overD. shall not hand over82. When the order given by bridge may have bad results, the duty engineer should_____A. inform the captain for a further considerationB. inform the captain, and not perform itC. stop the M/E immediately, and then inform the chief engineerD. stop the M/E immediately, and then inform the captain83. 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 bunkered84. If it becomes necessary to pump bilges while a vessel is in port, which of the following proceduresshould be followed?A. Pump only if the discharge is led to a shore tank or bargeB. Pump only during the hours of darknessC. Pump only on the outgoing tideD. Pump only as much as is necessary85. The SOLAS convention prescribes that in the fire fighting drill the duty engineer should start thefire pump and supply deck water in _______ minute(s)A. 5B. 3C. 2D. 186. According to the IS M CODE, the “person” in the phrase “to designate a person or persons ashorehaving 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 shopD. the designated person ashore87. In order to strengthen maritime security and prevent and suppress acts of terrorism againstshipping, a new, comprehensive security regime for international shipping was set to enter into force in July 2004. The new regime is ________.A. ISM CodeB. ISPS CodeC. FSS CodeD. IBCC Code88. In the voyage, when carrying out abandon ship drill, ________ should be test every time.A. the emergency lighting system for muster and abandon shipB. air/oil emergency shut-down3C. M.E. emergency operationD. main/auxiliary steering gear changing二．关联题（关联题干下有4个小题，每小题4个选项）第一组Scavenge port inspection provides useful information about the condition of cylinders, pistons, and rings, at low expense. The inspection consists of visually examining the piston, the rings and the lower part of the cylinder liner, directly through the scavenge air ports To reduce the risk of scavenge box fire, remove any oil sludge and carbon deposits in the scavenge air box and receiver in connection with the inspection.The port inspection should be carried out at the first stop after a long voyage, e.g. by anchoring if possible, to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle (complete or incomplete)A misleading result may be obtained if the port inspection is carried out after arrival at harbor, since manoeuvring to the quay and low-load running, e.g. river or canal passage, requires increased cylinder oil dosage, i.e. the cylinders are excessively lubricated, Further, during low load, the combustion ccle might not be as effective and complete as expected, due to the actual fuel oil qualities and service (running) condition of the fuel injection equipment. It is highly recommended to take this information into consideration.89. The components of an engine involved in normal scavenge port inspection comprise _______.①the piston ②piston rings ③the lower part of the cylinder liner ④the fuel injectorA.①②B. ①②③④C. ②③D. ①②③90. If the scavenge box had too much oil sludge and carbon deposits, what would occur?A. excessive cylinder oil consumptionB. the scavenge box fireC. the crankcase explosionD. excessive wear of the cylinder liner91. In order to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle, when should the scavenge port inspection be carried out?A. at the first stop after a long voyage, e.g. by anchoring if possibleB. at the first stop after arrival at harborC. at the first stop after low load runningD. at the first stop after passing river or canal passage92. Under what condition that the scavenge pot inspection can gain a misleading result?①after passed through Panama Canal ②after got alongside shanghai quay ③after arrival shanghai roadstead (外锚地)A. ②③B. ①②C. ①②③ D ①第二组Current regulations with respect to the discharge of oily water set limits of concentration 15 parts per million. A monitor is required to measure these values and provide both continuous records and an alarm where the permitted level is exceeded.The principle used is that of ultra-violet fluorescence. This is the emission of light by a molecule that has absorbed light. During the short interval between absorption and emission, energy is lost and light of a longer wavelength is emitted. Oil fluoresces more readily than water and this provides the means for its detection.A sample is drawn off from the overboard discharge and passes through a sample cell. An ultra-violet light is directed at the sample and the fluorescence is monitored by a photoelectric cell Where an excessive level of contamination is detected an alarm is sounded and diverting valves are operated. The discharging liquid is then passed to a slop tank.93. The passage is mainly about ________.A. oily water separatorB. current regulations related to oil pollutionC. oil in water monitorD. the principle of ultra-violet fluorescence94. A monitor can obtain all of the following functions except _______.A. measuring oil content valuesB. providing continuous recordsC. lowering the oil content below 15 ppmD. providing an alarm unit warning of levels of discharge in excess of 15 ppm95. From the passage, we can learn that the ultra-violet fluorescence is a kind of________A. oil sampleB. lightC. photoelectric cellD. alarm unit96. A sample is drawn off from ______ and passes through a sample cellA. bilge waterB. discharge of oil separatorC. slop tankD. discharge of oily water separator45轮机英语的答案1-5 ABDCD 6-10 ADBAB11-15 DCCCC 16-20 BCDBB21-25 CAADA 26-30 DDAAC31-35 CCBDA 36-40 DDBBC41-45 CCDBB 46-50 DDBCB51-55 BBDCB 56-60 ADBDB61-65 ADBAC 66-70 ADDDB71-75 DABDC 76-80 DBCAB81-88 DADA ADBA89-92 ~~~~ 93-96~~~~4。
轮机英语真题43期,甲类三管轮
中华人民共和国海事局2007年第2期海船船员适任证书全国统考试题(总第43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 engines, the diesel engine is ______ used engine on board.A. Between/more commonlyB. Among/the most commonlyC. Between/not more commonlyD. Among/ not the most commonly2.The average pressure exerted on a piston during each power stroke is termed ______.A. indicated horsepowerB. mean effective pressureC. exhaust back pressureD. compression pressure3.The cetane number rates fuels for diesel engines according to its ______.A. antiknock characteristicsB. ignition qualitiesC. rates of vaporizationD. viscosity4.The time between injection and ignition of the fuel is known as ______.A. turbulence lagB. after burning ratioC. pre-ignition lagD. ignition delay5.______ controls the fuel oil temperature in order to provide oil at the correct viscosity forcombustion.A. The viscosity regulatorB. The temperature controllerC. The flow meterD. The pressure switch6.Constant cooling the various components of diesel engine has a number of functions except for______.A. good lubricationB. low thermal stressC. good mechanical propertiesD. acid corrosion7. A device which functions to bring a diesel engine to a full stop to protect it from damage isknown as a/an ______.A. torque limiterB. over-speed tripC. over-speed governorD. load limit governor8.Engine speeds at which resonance can occur are termed ______.A. maximum speedsB. full speedsC. sea speedsD. critical speeds9.Prolonged operation of a diesel engine with a closed cooling water system at lower than normaldesigned operating temperatures can ______.A. increase power outputB. decrease lube oil viscosityC. eliminate fuel knockD. cause sulfuric acid formation10.______ on a ship transmits power from the engine to the propeller.A. The automatic control systemB. The speed regularly systemC. The transmission systemD. The compression air system 11.In a _____ boiler the hot gases from the furnace pass through the tubes while the water is on theoutside.A. water-tubeB. fire-tubeC. exhaust gasD. composite12.The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if theboiler ______.A.salinity is abnormallyB.high steam demand is too highC.feed-water flow is lowD.water level is abnormally low13.The water in a steaming auxiliary boiler should be tested daily for ______.A. dissolved oxygenB. chloridesC. sludgeD. dissolved nitrogen14.Ignition failure in an automatically controlled auxiliary boiler could be caused by ______.A. carbon deposits on the flame scannerB. high fuel oil temperatureC. low fuel oil viscosityD. high steam pressure15.The concentration of total dissolved solids in the water of an auxiliary boiler can increase as aresult of ______.A. seawater contaminationB. frequent surface blowsC. dissolved oxygen de-aerationD. frequent bottom blows16.Some pumps use packing as sealing gland. The gland should be ______.A. slack enough to allow slight leakage of fluidB. slightly chockedC. brought up tight so as not to allow any leakageD. fitted with a relief valve17. A spur gear pump should be operated with the discharge valves ______.A. slightly openedB. throttledC. fully openedD. halfway openedpared to globe and angle valves, gate valves ______.A. are more suitable for throttlingB. operate with little or no pressure drop when fully openedC. are more easily repairedD. cannot be used for service requiring infrequent operation19.An increase in rotor clearances in a rotary pump will ______.A. increase discharge pressureB. decrease pump capacityC. decrease pump cavitationD. decrease reaction ring clearance20.The usual symptoms of cavitation in a centrifugal pump is ______.A. noise and vibrationB. an increase in discharge pressureC. an increase in suction pressureD. lifting of the relief valve21.Refrigerant entering the compressor of a refrigeration system should be in which of the followingconditions?A. Sub-cooled liquidB. Sub-cooled vaporC. Superheated vaporD. Liquid22.______is the circulation and refreshing of the air in a space without necessarily a change oftemperature.A. RefrigerationB. Air conditioningC. VentilationD.Heating23.In an air conditioning system, moisture is removed from the air by ______.A. filtersB. separatorsC. ducted trapsD.dehumidifiers24.Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressoras a result of ______.A. refrigerant bubbles in the lube oilB. refrigerant reducing the lube oil viscosityC. oxidation of the lube oil from overheatingD. reducing the floc or cloud point of the oil25. A high rate of separation between oil and water is favored by ______.A. large size of oil globuleB. low temperatureC. high viscosityD. high flow rate26.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 ____is used to burn oil sludge.A. clarifierB. oily water separatorC. incineratorD. distiller29.Oil water separators are used to ensure that ships don't discharge oil when pumping out _____.A. ballast waterB. boiler waterC. bilge waterD. sewagewater30.When a clarifier is running the impurities and water collect at the bowl ______.A. centerB. peripheryC. inletD. upper parts31.The separation of impurities and water from ______ is essential for good combustion of dieselengines.A. lube oilB. fuel oilC. turbine oilD. grease32.Brine density in a distilling plant is measured with a/an ______.A. psychrometerB. salinometerC. anemometerD.sphygmomanometer33.The designed ______ is 20 tons per day, but the fresh water generator can only distil 15 tons atpresent.A. displacementB. weightC. powerD. capacity34.______ play a very important part in hydraulic systems by preventing interaction betweendifferent parts of the hydraulic circuit.A. MotorsB. Check valvesC. Safety valvesD.Reducing valves35.In a radial piston pump, reversal and control of fluid flow are accomplished by moving the______.A. central valveB. radial plungerC. floating ringD. cylinderbody36.In a ordinary cargo crane, ______is fitted to rotate the crane.A. the slewing motorB. the luffing motorC. the hoisting motorD. the fan motor37.Which problems can occur if the brake band lining of a wildcat brake becomes excessively worn?A. The driving engine will over-speed.B. The anchor will immediately drop.C. The clutch will overheat.D. The brake's effectiveness will be reduced.38.______ are used for hauling in or letting out the wires which fasten the ship to the shore.A. Cargo winchesB. Mooring winchesC. WindlassesD. Cargo hatches39.Which of the following can be used in hydraulic transmission system?A. Hydraulic oilB. Animal oilC. Light oilD. Fuel oil40.One factor that determines the frequency of an alternator is the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage41. A DC generator is used to supply direct current in order to maintain an AC generator field and isknown as a/an ______.A. rotorB. statorC. exciterD. armature42.When paralleling two AC generators, the frequency of the machine coming on-line, immediatelyprior to closing its breaker, should be ______.A. slightly less than the oncoming generator frequencyB. the same as the bus frequencyC. slightly greater than the bus frequencyD. the same as the bus voltage43.When securing an AC generator, you should FIRST ______.A. open the generator circuit breakerB. switch the voltage regulator to 'manual'C. decrease the field excitation to minimumD. reduce the load on the unit44. A generator is prevented from becoming motorized by the use of a/an ______.A. over-speed tripB. reverse power relayC. back pressure tripD. governor controls45.The part of the shipboard electrical system used to control the distribution of power to the branchcircuits is the ______.A. bridge control panelB. disconnect linksC. governor relay boxD. main switchboard46.Which of the listed sections of an emergency switchboard is used to supply power for alarmsignals 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 bus47.The separate supplies are connected in either star or delta formation. The star formation is mostcommonly used and requires ______ slip-rings on the alternator.A. twoB. threeC. fourD. five48. A fuse that blows often should be replaced only with a fuse of ______.A. the recommended current and voltage ratingB. higher current and voltage ratingC. higher current and lower voltage ratingD. lower current and higher voltage rating49.The overcurrent relay______ the motor contactor when the motor exceeds its rated current .A. connectsB. tripsC. foulsD. destructs50.Electric circuits are protected against overloads and short circuits by means of a/an ______.A. circuit breakerB. amplifierC. diodeD. capacitor51.Prior to starting an AC generator prime mover, the voltage regulator cutout switch should beplaced in the _________.A. manual positionB. bus neutral positionC. raise voltage positionD. transfer position52.Before M/E putting on the starting air, the reversing and control gear should be _____.A. operatedB. stoppedC. checkedD. removed53.______ is a precaution which contributes to avoiding trouble under normal operating conditions.A. Constant inspectionB. Keeping constant loadC. Remaining constant temperatureD. Varying speed54.After “F.W.E.” is given, the air system is shut down, the _____ gear put in, all drains andindicator cocks opened, and the cooling water kept running.A. steeringB. timingC. turningD. running55.Which of the following must be eliminated to prevent accidents?A. Unsafe actionsB. OrderlinessC. Frequent inspectionsD. Good work habit/practices56. A class …C‟fire would most likely occur in the ______.A. engine room bilgesB. main switchboardC. paint lockerD. rag bin57.The most likely place for a fire to start through the process of spontaneous combustion is in_____.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin58.While on watch in the engine room, you hear a continuous sounding of the general alarm. Whichof 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.59. A fireman's outfit carried onboard cargo vessels, must have a ______.A. canister-type gas maskB. fresh-air breathing apparatusC. self-contained breathing apparatusD. combustible gas indicator60.The safe rate of bunkering heavy fuel oil is directly related to the ______.A. type of fuel transfer pump aboardB. temperature of the fuel oil being receivedC. size of the fuel storage tanks ashoreD. distance from the fuel oil storage tanks ashore61.To anneal a copper gasket, you should heat the gasket ______.A. and quench it in oilB. cherry red and quench in waterC. and let it cool slowly in the airD. and carbonize it62.Preventive maintenance _____.A. should not be carried out during the watches.B. can only be carried out in port.C. is a kind of maintenances carried out prior to the occurrenceD. is a kind of maintenances carried out after the occurrence63.The additional mark _____ in the Classification Certificate for Machinery represents thatpersonnel are watching at engine assembly control station and monitoring all machinery and electronic devices.A. BRCB. MCCC. AUT-0D. AUT-164.Which of the following machinery space operations is required to be logged in the Oil RecordBook?A. Ballasting or cleaning of fuel oil tanks.B. Shifting suction of main fuel pump to reserve fuel oil tank.C. Changing out sprayer plates to adjust for steam demand.D. Daily inspection of engine room bilges.65.The Port Authorities, in accordance with the IMO resolutions have been carrying out _____ toenhance safety of ships.A. CPPB. FPPC. PSCD. FSC66.The fire drill must, as far as practicable, be conducted as if _____.A. there is a minor emergencyB. there is an actual emergencyC. there were a minor emergencyD. there were an actual emergency67.Duties shall be so organized by the chief engineer that the first watch at the commencement of avoyage and the subsequent relieving watches are _____and otherwise fit for duty.A. well trainedB. in good luckC. in good healthD. sufficiently rested68._____ should not undertake any task which will interfere with the supervision duties relating tothe main machinery and associated equipment.A. The watch keeping personnelB. The chief engineerC. The person on a bunker bargeD. The duty deck officer69.At an unsheltered anchorage the chief engineer officer shall consult with _____ whether or not tomaintain an underway watch.A. the engineer officer in charge of watchB. the deck officer in charge of watchC. the masterD. the chief mate70.The term 'oil', as used in the Pollution Prevention Regulations , means ______.A. fuel oil onlyB. crude oil onlyC. liquefied petroleum gasD. petroleum oil of any kind71.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 foam72.The SOLAS Convention in its successive forms is generally regarded as the most important of allinternational treaties concerning the ______ of merchant ships.A. pollutionB. economizationC. safetyD. efficiency73.The SMS should provide for specific measures aimed at promoting the_____ of equipment orsystems the sudden operational failure of which may result in hazardous situations.A. visibilityB. abilityC. reliabilityD. capability74.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 Administration二、关联题（关联题题干下有4个小题，每小题4个选项）The cooling water in the HT(high temperature) circuit cools the cylinder liners, cylinder heads and turbocharger. From the pump water is supplied to the engine manifold which is cast in the engine block. From the manifold the water is distributed to all cylinder liner sections and from each liner upwards through the cooling water channels in the liner collars. From the liner collars further into the cylinder heads. In the cylinder head the water is forced by an intermediate deck to flow along the flame plate, around the valves to the exhaust valve seats and up along the fuel injector sleeve. From the cylinder head the water is discharged via a connection piece into the discharge manifold.The return water from the cylinder heads and turbocharger is supplied to the HT air cooler.In the first stage of this cooler, most of the heat from the charge air is extracted. The LT circuit water cools the charge air in the second stage. The necessary cooling for the LT water is gained from a central cooler. By controlling the LT water temperature to the inter-cooler the correct charge air temperature can be obtained.For preheating purposes, a heater circuit with a pump and heater are connected in the HT circuit before the engine. Before starting, the HT circuit is heated till about 60℃ by a separate heater The pre-heating of the engine is, prior of starting up and loading on HFO, of utmost importance.75. From the passage we know that the charge air temperature was controlled by ____.A. sea water from a central coolerB. fresh water from a central coolerC. fresh water from a HT circuitD. fresh water from the LT circuit76. The cooling water to cool the engine was forced ______ .A. into the cylinder block and then upwards into the cylinder headB. into the cylinder intermediate section and then upwards into the cylinder headC. into the cylinder head and then downwards into the cylinder blockD. into the cylinder ends and then further into the cylinder intermediate77. After the charge air is discharged into the HT air cooler, _______.A. the charge air temperature will become higherB. the charge air temperature will become lowerC. the HT water temperature will remain constantD. the HT water temperature will become lower78. Which of the following devices may be used to warm the engine prior to starting?A. A high temperature cooling water system.B. A low temperature cooling water system.C. A central cooler.D. The second stage cooler.三、中译英（共2题，请将答案写在答题纸上）79．(轮机日志)检查所有燃油、滑油及冷却水工作液位，所有燃油柜放残。
轮机英语三管轮试题货物装卸
轮机英语三管轮试题货物装卸1875. _____ are used for cargo handling.A. CranesB. Mooring winchesC. WindlassesD. Foreman 1876. 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. hold1877. 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. castB. putC. holdD. let out1878. 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 above1879. In a ordinary cargo crane, _____ is fitted to rotate the crane.A. the slewing motorB. the lulling motorC. the hoisting motorD. none of the above1880. The crane is usually mounted on a pedestal to offer adequate_____ to the operator.A. timeB. spaceC. lengthD. visibility1881. In a general cargo crane, _____ is fitted to lift the cargo load.A. the slewing motorB. the luffing motorC. the hoisting motorD. none of the above1882. When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the_____.A. dockB. holdC. pedestalD. machinery space1883. Cargo handling unit is rated according to the_____ to be lifted.A. cargo craneB. jibC. safe working loadD. oil pressure 1884. Topping wires fix the height of the derricks and_____ to the deck may be used to prevent fore and aft movement.A. staysB. winchesC. barrelsD. brakes1885. _____ may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).A. A capstanB. A holdC. A warp endD. A mooring drum1886. Manually operated band brakes may be fitted and_____ will have a brake arranged to fail-safe.A. the drive pumpB. the drive motorC. the warp endD. the purchase 1887. In cargo crane, _____ for lifting the load.A. a hoisting motorB. a luffing motorC. a mooring motorD. a slewing motor1889. These include deck machinery such as mooring equipment, anchor handling equipment, cranes and_____.A. boilersB. bow thrustersC. stabilizersD. hatch covers1890. A warp end may be fitted for operating the derrick topping wire which adjusts the derrick _____.A. lengthB. slackC. heightD. rotation direction1891. In a general cargo crane, three principal movements are_____; _____; _____.A. hoisting/luffing/slewingB. lifting/raising/loweringC. rotating/raising/handlingD. hosting/lowering/moving1892. For occasional heavy loads, two cranes can be arranged to work together. The operating _____ for deck crane motors may be hydraulic electric.A. principleB. mediumC. instructionD. voltage1893. 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 viscosity1894. The oil in a cargo winch gear box should be sampled periodically to_____.A. prevent the gear box from leakingB. prevent the oil from becoming inflammableC. make sure it has not become contaminatedD. make sure the motor bearings are lubricated1895. The duty of a deck winch is to lift and lower a load by means of a fixed rope on_____.A. a warp endB. a mooring winchC. a worm gearD. a barrel 1896. Deck cranes require_____ time to prepare for working cargo than derricks.A. lessB. moreC. manyD. much1897. Some cranes are mounted in pairs on a common platform which can be rotated through_____.A. 360oB. 270oC. 180oD. 90o1898. _____ can be operated independently or locked together and operated as a twin-job cranes of double capacity.A. Two derricksB. A derrick and a craneC. Two cranesD. A crane and a winch课后练习1899. The crane is usually mounted on a pedestal to offer adequate ______ to the operator.A. timeB. spaceC. lengthD. visibility1900. When the union purchase derrick is operated, one derrick os positioned over quayside and the other almost vertically over the_______.A. dockB. holdC. pedestalD. machinery space1901. Cargo handling unit is rated according to the ________to be lifted.A. cargo craneB. jibC. safe working leadD. oil pressure1902. _____are used for cargo handling.A. cranesB. mooring winchesC. windlassesD. foreman⼤连新题1903. Which systems in the hydraulic systems of crane always holds single side of load?A hoisting system onlyB hoisting system and luffing systemC hoisting system and slewing systemD slewing system1904. The crane jib is raised and lowered by means of ______.A a mooring winchB a hoisting winchC a slewing winchD a luff9ing winch1905. ______have replaced derricks on many modern ships.A. CranesB. WinchesC. CapstansD. Hydraulic motors添加题1906. For occasional heavy loads, two cranes can be arranged to work together. The operating _______ for deck crane motors may be hydraulic or electric.A principleB mediumC instructionD voltage。
轮机英语关联题(附答案)m二三管轮...教材
关联题（136题）Passage 1Valve drive mechanismThe valve drive mechanism commands the inlet and exhaust valves at the required timing.The valve drive mechanism consists of an inlet and exhaust cam follower (8) each suspended in a plunger of the tappet assembly (7), two tubular push rods (4) with ball joints, two nodular cast iron rocker arms (2) suspended in a rocker arm bearing bracket, two yokes (5) and a yoke guide pin.s. See Fig. 4-1.The tappet rollers follow the cam profiles and transfer the movements through push rods to the rocker arms. The rocker arms operate the inlet and exhaust valves through yokes (5).Lubrication for the rocker arms comes from the engine’s secondary oil supply manifold through drillings in the cylinder head and rocker arm bracket.The tappet assembly receives lubricating oil via channels in the engine block from the main supply manifold. For the roller and shaft, the oil is supplied through the guiding plunger.To compensate for heat expansion a clearance must exist between the rocker arm and yoke. Alladjustments have to be done on a cold engine only.Fig-4-1 Valve drive mechanism1. According to the passage, the best time to adjust the valve clearance is _____.A. before the engine is startedB. when the engine is runningC. after the engine has just been stoppedD. when something has gone wrong with the engine2. The roller and the tappet assembly are lubricated by means of ________.A. the main lube systemB. the secondary oil systemC. the special pumping systemD. the turbine oil system3. According to the passage, the valve drive mechanism does not include ______.A. tappet rollersB. push rodsC. nodular cast ironD. yokes and guide pins4. To close valves tightly, which clearance should be inspected according to the maintenance schedule?A. The one between the cam and the tappet roller.B. The one between the push rods and the ball joints.C. The one between the rocker aims and the yokeD. The one between two tubular push rods.AACCPassage 2Compressor cleaning during engine operationThe compressor may be cleaned by water injection during the engine operation. The cleaning process will have good results as long as the deposit formation has not gone too far. In ease a very thick hardened crest of dirt the compressor has to be dismantled for cleaning.In this method of cleaning the water is not acting as a solvent but instead removes the deposits mechanically by the impact of the water droplets. It is therefore recommended to use clean water without additives. The water should not contain any additives which might remain on the compressor blades.Periodically cleaning of the compressor (Fig. 4-2) prevents or delays excessive build-up of dirt but in no way replaces the usual overhauls where the turbocharger is completely dismantled.The turbocharger is provided with a water container (1). During the cleaning procedure the container is pressurized with the charge air (2) and from where the water is forced to the compressor inlet (3).1. Which of the following statements can be used to clean the compressor with the engine running?A. Water droplets Water with additives C. Charge air D. Hard crust2. What principal is used in this method of cleaning?A. The cleanser solves the deposits.B. The cleanser melts the deposits.C. The cleanser beats the deposits mechanically.D. The high pressure of the cleanser removes the deposits.3. Which of the following statements is not correct?A. The compressor needs regular cleaning.B. Periodical cleaning of the compressor contributes to reducing build-up of dirt.C. It’s not necessary to dismantle the turbocharger if periodical cleaning of the compressor is performed.D. Additives should better be avoided during the cleaning process.4. The cleaning water should not contain any additives, because_____.A. they may delay build-up of dirtB. they might remain on the blades of the compressorC. they may be forced to the compressor inletD. they are not good solventsACCBPassage 3Charge air coolerThe engine is equipped with a charge air cooler. The insert type charge air cooler is mounted in a welded casing (air trunk) . The trunk is bolted to the engine block.Standard is a two-stage cooler mounted. The first stage, through which the charge air flows, is cooled with water from the HT cooling system and cools the charge air till approx. 90 -100℃. The second stage is supplied with water coming from the LT water system and cools the charge air further till the required temperature of approx. 50℃. By controlling the water flow through the LT cooler the charge air temperature can be kept constant at the required temperature.The circulating coolant water should always be under positive pressure and should be as clean as possible. The operating air temperature should be maintained by controlling the coolant inlet temperature.Whilst the engine is running the air and coolant temperatures and pressures at inlet and outlet should be checked and logged periodically. Variations from normal indicate faults developing such as fouling of the film plates or obstruction of the water tubes.Check daily, during operation of the engine, the working of the telltale hole at the free end of the charge air receiver. The function of this hole is to inform the operator the presence of water in the charge air receiver. Under normal condition only compressed air should escape from this hole.1. According to the passage, the expression “HT”probably means ______.A. HIGH TANKB. HIGH TEMPERA TUREC. HEAT TRANSMISSIOND. HEAT TRANSFER2. In order to maintain the charge air temperature we should control ______.A. the coolant inlet temperature coming from the first stage coolerB. the coolant flow coming from the second stage coolerC. the coolant outlet temperature coming from the second stage coolerD. the coolant flow coming from the first stage cooler3. The charge air temperature departing from normal may indicate that _____.A. condensate can be formedB. only compressed air should escape from the telltaleC. the film plates are becoming dirty or the water tubes are blocked by scaleD. cooling water may have been carried into the cylinders4. The function of the telltale hole is to ______.A. detect whether compressed air has escaped from the holeB. control the coolant inlet temperatureC. determine whether the coolant water is under positive pressureD. inform the operator the presence of water in the charge air receiverBBCDPassage 4The vibration damper serves to reduce the torsional vibration generated by the crankshaft. The damper consists of a housing and a free rotating inertia ring supported by an axial bearing. It forms a totally enclosed unit. The free space between inertia ring and damper housing is filled with a high viscous fluid. When the crankshaft rotates at constant speed, the inertia ring will follow this movement. The combustion pressure exerted on each piston generates vibration in the crankshaft, and each variation generated by such a vibration will affect the movement of the inertia ring. The resulting shift of the ring to the damper housing is opposed by the viscous fluid and the vibration will be reduced.The energy, absorbed during the process, is converted into heat and then radiated to the surrounding air. Hence, proper ventilation of the damper is essential.The viscous damper fluid is during engine operation subjected to ageing and the fluid becomes more viscous. In sending fluid samples on a regular base to the damper manufacturer the rate in reduction of the viscosity can be determined. As sampling interval time is 6000 hours advised. Dampers with a too high fluid viscosity may cause crankshaft breakdown.The damper cover has two filling holes located 180o opposite each other and closed by screw-in filler plugs. If one of these plugs is accessible, a fluid sample container can be screwed in and a sample taken with the damper in place. On a spare damper, sampling must be effected with the damper in the vertical position.For liquid sampling, a special kit can be ordered from Stork-Wartsila Diesel.1. The general description of the vibration damper tells us that_____.A. the free space between inertia ring and damper housing is filled with a low viscous fluidB. when the inertia ring moves at constant speed , the crankshaft follows this movementC. the damper is made up of a housing and a free rotating inertia ringD. no ventilation of the damper is necessary as the vibration reduction process absorbs little energy2. Which of the following statements is not true about maintenance of the viscous damper?A. Sampling interval time for determining the quality of the fluid is 6000 hours.B. For liquid sampling, a special kit can be used.C. On a spare damper, sampling must be effected with the damper in place.D. The viscous fluid in a damper becomes more viscous as time goes by.3. During the engine operation, the vibration damper can_____.A. transfer the energy of the engineB. absorb the combustion heatC. oppose the crankshaft rotatingD. reduce the vibration of the crankshaft4. According to the passage, we learn that two filling holes in the damper cover are used _____.A. to recharge the fluidB. to ventilate the damperC. to fit the containerD. to take the sampleCCDDPassage 5The vibration damper employs a high viscous fluid to oppose the shift of the inertia ring to the damper housing. It is necessary to get samples to determine the rate in reduction of the viscosity. The steps to draw off the sample are as follows(Refer to the Fig. 4-3):1. Turn the engine until the drain plugs are easy accessible. Do not unscrew the drain plug until the damper is luke warm (approx. 40o C ).2. Carefully tap the locking of the upper drain plug backwards, using a punch, and unscrew the threaded plug. Do not yet remove the plug!3. Unscrew one cap nut from the (plastic) liquid container.4. Remove the drain plug and screw the liquid container instead.5. Remove the outer cap nut from the liquid container. Make sure that no machine oil or dirt can enter the liquid container!6. Screw the outer cap nut again, once the liquid has reached the open end of the liquid container. The filling-up period of the liquid container may take from a few seconds up to more than an hour, depending on the liquid condition.7. Unscrew the liquid container from the damper and fit the drain plug using a new joint ring (supplied with the mounting kit).8. Fit the second cap on the liquid container.If no sample can be taken in this way, you can proceed as follows:- If still no liquid appears after a while, remove the second drain plug, too.- Supply nitrogen of 3.5 bar maximum pressure through the open filling hole.If no nitrogen is available, air may be used, provided this air is properly filtered and dry.- Once the liquid has reached the open end of the liquid container, cut off the supply of nitrogen and screw the cap on the liquid container.- After the nitrogen supply has cut off, unscrew the liquid container, screw the second cap and fit both drain plugs.If a liquid sample cannot be obtained this way either, it can be assumed that the damper liquid has thickened to an inadmissible value, necessitating the replacement of the damper.1. According to the passage, we can learn that_____.A. before using the container to draw off the sample, both ends of it are closedB. the liquid container must be washed with machine oil before samplingC. liquid sampling must take more than one hourD. two liquid samples should be taken every time2. If the liquid sample cannot be taken any way, it means_____.A. nitrogen pressure is too lowB. the quantity of the damper fluid is insufficientC. the viscous fluid in damper becomes too thickD. the method of liquid sampling is incorrect3. Which statement is tree about the sampling process?A. The drain plug can be unscrewed regardless of the damper temperature.B. The drain plug should not be removed until one cap nut from the liquid container is unscrewed.C. The outer cap nut must be screwed before the liquid reaches the open end of the liquid container.D. The drain plug can be fit by using the old joint ring.4. If no sample can be taken by removing the first drain plug, then which of the following is done?A. The second drain plug should be removed too.B. A pressure of 5.3 bar should be applied.C. Clean and damp air is used instead of nitrogen if the latter is not available.D. The nitrogen supply continues when the liquid has reached the outer end of the liquid container. ACBAPassage 6At the first start, listen carefully for possible jarring(刺耳的) sounds. If anything is suspected, stop the engine immediately, otherwise stop the engine after 5 minutes’ idling. Check at least the temperatures of the main and big end bearings and of all other bearings which have been opened. Make visual inspection from below to the cylinder liners and piston skirts which have been opened. If everything is in order, restart.Check that there is no leakage of gas, water, fuel or lubricating oil. Especially observe the fuel lines, HP fuel pumps and injectors. Watch the quantities emerging from the leak oil pipes!Check that the starting air manifold is not hot at any cylinder (leaky starting valve may cause explosion!After overhaul, the following instructions are important:- check pressure and temperature gauges.- check the automatic alarm and stop devices.- check the pressure drop over the fuel filter and lubricating oil filter.- check the oil level in the oil sump/oil tank. Estimate the condition of the oil.- check the de-aerating of the engine circulating water system.- check the quantity of fuel leak.- check the telltale holes for leaks.- check the circulating water quality- check the cylinder pressures.- listen for jarring sounds.- check the crankcase pressure.- check the starting air manifold.Running-in is mainly intended to let piston tings "wear" to fit properly in the cylinder liner.Do not continuously run at constant load during the running -in process ( Fig. 4-4).It is important to vary the load several times. The ring grooves in the piston will have a different tilting angle at each load and consequently the piston ring has a different contact line to the cylinder liner wall.1. Paragraph 1 tells us that_____.A. if we hear vibration sounds, we should stop the engine quickly, or allow it to operate at low speed for5 minutes, then stop it and check everythingB. if we hear vibration sounds, we should stop the engine quickly, otherwise the engine will be stopped automatically after 5 minutesC. if we hear explosion sounds we should stop the engine then check everythingD. if we hear surging sounds, we should stop the engine immediately otherwise after 5 minutes the engine will be destroyed2. After overhaul, following instructions are important except_____.A. release air from the engine circulating water systemB. treat the circulating water if necessaryC. make sure the pressure drop is enough besides the fuel filterD. make sure the quantity of lube oil meets the requirement3. After piston overhaul, the running-in process should be carried out_____.A. periodically at steady loadB. occasionally at various loadC. continually at constant loadD. continually at various load4. When dealing with engine troubles, _____.A. no leakage of lubricating oil should be checked_____.B. quantities of oil emerging from the leak oil pipes must be watchedC. quality of the leak oil must be watchedD. the number of the leaking fuel lines should be checkedACDBPassage 7This sequence of events is made possible by substituting ports in the bottom of the cylinder wall for the inlet and exhaust valves. There are two groups of these ports, one for exhaust and the other for scavenging air, usually on the opposite sides of the cylinder, but in some designs both groups are arranged on the same side. The exhaust ports connect with the exhaust manifold, while the scavenging ports communicate with the scavenging air receiver in which low-pressure air is stored. The exhaust ports are slightly higher than the scavenging ports, so that they are uncovered by the piston while the scavenging ports are still closed.(The following 2 questions are based on the passage above. )1. From the paragraph above, we know that_____.A. In general, both exhaust ports and scavenging air ports are on the opposite sides of the cylinderB. The exhaust ports are on the opposite sides, but the scavenging air ports are on the same sidesC. The scavenging air ports are on the opposite sides, but the exhaust ports are on the same sidesD. Two groups of parts are never arranged on the same sides2. According to the above paragraph the exhaust ports link with_____.A. the exhaust valvesB. the scavenging air receiversC. the exhaust manifoldD. the scavenging portsThe engine is also provided with a governor which is designed to regulate the engine' s speed by adjusting the quantity of oil injected. When the engine runs at a speed higher or lower than that is set, the governor will act automatically reduce or increase the fuel oil supply so that the engine can be adjusted.( The following 2 questions are based on the passage above. )3. From this paragraph we can understand that_____.A. if the engine runs at a speed higher than that is set, the governor will increase the fuel oil supplyB. if the engine runs at a speed higher than that is set, the governor will decrease the fuel oil supplyC. the governor will not act until the engine runs at speed lower than that is setD. the governor regulates the engine's speed by adjusting the fuel oil injection4. The engine governor is used for_____.A. adjusting the fuel oil injection qualityB. adjusting the engine speedC. keeping the engine at higher speedD. keeping the engine at lower speedACBBPassage 8The lubrication system of an engine provides a supply of lubricating oil to the various moving parts in an engine. Its main function is to enable the formation of a film of oil between the moving parts, which reduces friction and wear. The lubricating oil is also used as a cleaner and in some engines as a coolant. The usual method of bearing lubrication is by forced feed system, which supplies oil to all bearings, so that a film of oil is maintained on the journal and bearing surfaces.(The following 2 questions are based on the passage above.)1. The forced feed system is put into use in order to _____.A. supply oil to all parts of the engineB. lubricate the bearing and the pistonC. maintain a film of oil on the journal and bearing surfacesD. maintain a film of oil on the piston surfaces only2. What is the function of lubricating oil?A. Formation of a film of oil between the moving parts, which reduces friction and wear.B. Used as a cleaner.C. As a coolant in engines.D. All of the above.Fresh water is used for the cooling of the cylinder jackets and covers of the main engine, whereas the various cooling liquids which circulate the engine are themselves cooled by sea water, such as, sea water is used for the cooling of the oil in the lubricating oil cooler as well as the fresh water. In an emergency situation, for example in the event of damage to a fresh water cooler or generator, the sea water pumps can be used to supply sea water to the fresh water cooling system, merely by removing the blind-flanges.(The following questions are based on the passage above. )3. In which situation we should use sea water system instead of fresh water system?A. When sea water pumps are damaged.B. When sea water cooler is damaged.C. When fresh water pumps are damaged.D. The blind-flanges are broken.4. The word “merely” in this paragraph could best be replaced by_____.A. onlyB. necessaryC. butD. ifCDCAPassage 9Because 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.(The following 2 questions are based on the passage above.)1. A water separator is used in order to _____.A. keep the air from being carded into the engineB. keep the moisture from being condensedC. keep the danger from being carded into the engineD. take away the condensate from the air2. 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.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 and could lead to an explosion inthe pipelines. In order to prevent such an occurrence, cylinder-starting valves should be properly maintained and the pipelines regularly drained. Also oil discharged from compressors should be kept to a minimum, by careful maintenance.(The following 2 questions are based on the passage above.)3. 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.4. 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+CDDBDPassage 10Fuel oil is thought to be one of the main factors, having much to do with the operation and maintenance of an engine. The fuel oil system for a diesel engine can be considered in two parts: the fuel supply and the fuel injection system. When the atomized fuel is injected into the combustion space, ignition is not altogether instantaneous, a definite time lag being measurable between the time of injection and ignition. The period of ignition lag depends, among other factors, on the ignition quality of the fuel and the temperature of the compressed air.(The following 2 questions are based on the passage above.)1. This paragraph tells us that_____.A. ignition takes place before the injection of the atomized fuelB. ignition takes place simultaneously with the injection of the atomized fuelC. the period of ignition lag depends only on the quality of the fuel and the temperature of the compressed airD. the ignition quality of the fuel and the temperature of the compressed air are the two main factors determining the period of ignition lag2. “instantaneous瞬间的” in the passage probably means_____.A. simultaneous（同时的）B. afterC. beforeD. whenThe crankshaft is built up, the forged main bearing journals being shrunk into cast steel crank throws. The crank throws are displaced from each other to obtain the same number of degrees between the different crank throws. The alignment of the crankshaft in the bedplate should be checked at intervals to ensure that the shaft is not subjected to additional bending stresses, which, under extreme conditions, may cause crankshaft failure.(The following 2 questions are based on the passage above.)3. What does the word “alignment” mean in this passage?A. the bedplate is checked at intervalsB. to ensure that the shaft is not subjected to additional bending stressesC. to obtain the same number of degrees between the different crank throwsD. arrangement in a straight line4. The number of degrees between the different crank throws should beA. all the sameB. a little bit differentC. smallerD. largerDADAPassage 11During overhaul the safety roles have to be observed as required in order to prevent the danger of accidents. Special precaution is necessary when the engine is running with 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.(The following 2 questions are based on the passage above.)1. During overhaul, we have to observe the safety rules, in order to _____.A. avoid desirable turning of the crankshaftB. make all pipes pressure-relievedC. avoid the danger of accidentsD. let the crankshaft turn undesirably2. Before the repair work is started, _____.A. engine should be pressure-chargedB. the pressure in all pipes should be increasedC. all pipes should be pressure-relievedD. the air in some pipes should be relievedFresh water is used for the cooling of the cylinder jackets and covers of the main engine, whereas the various cooling liquids which circulate the engine are themselves cooled by sea water, such as, sea water is used for the cooling of the oil in the lubricating oil cooler as well as the fresh water. In an emergency situation, for example in the event of damage to a fresh water cooler or generator, the sea water pumps can be used to supply sea water to the fresh water cooling system, merely by removing the blind flanges.(The following 2 questions are based on the passage above.)3. From this paragraph, we can see that_____.A. the cylinder jackets and covers are cooled by fresh water and then by sea waterB. fresh water is used for the cooling of the cylinder jackets and covers of the main engineC. fresh water is used for the cooling of the main engineD. sea water is used for the cooling of both the fresh water and the main engine4. According to the paragraph, the term “various cooling liquids” refers to_____.A. fresh water and sea waterB. air and fresh waterC. fresh water and cooling oilD. sea water and airCCBCPassage 12The installation including expansion, preheating and pressurizing should be carried out in strict accordance with the instructions of the engine manufacturer to obtain a correct and trouble free installation. There should be no reason to carry out any maintenance to the cooling water system unless the temperatures in the cooling water system start to rise without any clear reason. Normally all inspections andmechanical cleaning of the cooling water system components are better to do at planned intervals.The circulating fresh water should be treated according to the recommendations to prevent corrosion and deposits. If the risk of freezing occurs, drain all cooling water spaces. Avoid using fresh cooling water. Save the drained water and use it again.In completely closed systems the fouling will be minimal ff the cooling water is treated according to the instructions.Depending on the cooling water quality and the efficiency of the treatment, the cooling water spaces may or may not foul over the length of time. Deposits on cylinder liners walls, cylinder heads and cooler stacks should be removed to avoid disturbance in the heat transfer to the cooling water with thermal overload as consequence.The necessity of cleaning should be investigated, especially during the first year of operation. This may be done during overhaul of a cylinder liner inspection for fouling and deposits on the liner and block. The cylinder head cooling water spaces can be checked by removing the water space plugs in the sides of the cylinder heads. The turbocharger can be checked through the inspection covers of the water spaces. The deposits can quite vary in structure and consistency. In principle, it can be removed mechanically and/or chemically.1. The sentence “The circulating fresh water should be treated ...” (paragraph 2), most probably means that the fresh cooling water should be _____.A. drained to avoid freezingB. collected when drainingC. changed at planned intervalsD. analyzed and dosage added if necessary2. Which of the following statements is true?A. The cooling water system does not need maintenance if it works normally.B. The circulating fresh water does not need special treatment when in normal operation.C. In completely closed cooling water system scale will not be formed.D. Deposits in the cooling water system may not be formed over the length of time.3. Which of the following statements about the first sentence in paragraph 1 is true?A. The engine is installed by the manufacturer free of charge.B. The engine should be warmed in advance before installing.C. The installation must be conducted according to the instructions.D. The installation may be carried out freely.4. We can _____ to find out about the scale in the cooling water space of the cylinder cover.A. overhaul the cylinder linersB. remove the plugs in the sides of the headsC. open the inspection coversD. withdraw the pistonsDACBPassage 13Mechanical cleaningA great deal of the deposits consists of loose sludge and solid particles which can be brushed and rinsed off with water. On places where the accessibility is good, e.g. cylinder liners, mechanical cleaning of considerably harder deposits is efficient. In some cases it is advisable to combine chemical cleaning with a。
轮机英语真题42期 甲类三管轮
轮机英语真题42期甲类三管轮中华人民共和国海事局20__7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 gearbo_ 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 rodschain 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.si_ consecutive(连续的) startsB.eight consecutive startsC.ten consecutive startsD.twelve consecutive startsA 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 ropriate temperatureB.warmed up gradually to ropriate 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 clutchesreversing gearsD.reduction gears11.The ma_imum pressure developed by a waste heat boiler is determined by the main enginee_haust ______.A.gas positionB.gas temperatureC.pressureD.timing 12.______continuously e_tract 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 ing au_iliary boiler should be tested daily for ______.A.dissolved o_ygenB.chloridesC.sludgeD.dissolved nitrogen14.A firebo_ e_plosion in an automatically fired au_iliary boiler may be the result of ______.A.e_cessive 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 au_iliary boiler might lose suction if the______.A.boiler water level is lowB.feed-water is too hotC.boiler 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.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 s 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 lying 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 follog conditions must e_ist 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 e_isting temperature differential.D.There must be an e_isting 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 e_le 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 plete oily water separating unit is firstfilled______.The oily water mi_tureis then pumped through the inlet pipe into the coarse separating partment.A.with dirty waterB.with clean waterC.by oily waterD.by mi_ed 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.au_iliary engineD.incinerator29.Most marine biological sewage treatment plants consist of all the follog statements e_cept______.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.mi_ed with clean oilB.purifiedC.heatedD.strained32.When a vacuum boiling evaporator works, the hot jacket waterwill 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 e_tended period of time, you should ______.A.fill the unit with saltwaterB.fill the unit with descaling poundC.pletely drain the unitD.tightly seal the unit to e_clude air34.Among the basic categories of equipment, which of the follog 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 bo_es 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 e_treme tooth angles36.The oil in a cargo ch gear bo_ should be sled periodically(周期性地) to ______.A.prevent the gear bo_ from leakingB.prevent the oil from being inflammable(易燃的)make sure it has not bee contaminated(污染)D.make sure the motor bearings are lubricated37.If an anchor dlass 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 ch 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 ma_imum e_pected 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 bee charged with oilwarm-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 flog first in one direction and then in another is called ____current.A.a rushB.an alternatingC.a directD.an e_citing41.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 magic polesC.strength of the mags usedD.output voltage42.While paralleling two AC generators using synchronizing(同步的) ls only, both ls 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.bees 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 transformedinto 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 ls 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.ma_imumD.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.ly 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.S 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 thefollog conditions does this indicate?A.The tank is safe to enter.The tank is especially dangerous to enter.C.Carbon mono_ide(一氧化碳) is present.D.Water vapor present when the tank was sealed has o_idized(使氧化).56.Fires involving bustible metals are classified as ______.A.class "A" firesB.class "B" firesC.class "C" firesD.class "D" fires57.The three basic ponents of a fire are chain reaction, heat, fuel, and ______.A.carbon mono_ideB.o_ygenC.carbon dio_ideD.any gaseous substance58.CO2 e_tinguishes a fire by __________.A.a blanket of bubbles formed on the surface of the firesmotheringC.isolating the heat from the fuelD.cooling59.Seawater may be used for drinking water ______.A.at a ma_imum rate of two ounces(盎司) per dayB.after mi_ing 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/renegrepairing/renegC.to repair/ be renewedD.repairing/be renewed 62.When a vessel is in dry-dock, the vessel"s engineers should ______.A.e_amine 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 aratus 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 ______.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 mencement of a voyage and for subsequentrelieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainabledeficiencies(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 BookOil Record BookD.Muster List67.When deciding the position of the engineering watch, which may include _____ropriately,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 sped69.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.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.weleB.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, patible their safety.A.at most referencesB.at least referencesC.ma_imum standardsD.minimum standards73.These acid residues must be prevented from entering the crankcase, otherwise the lube oil wouldbe _______.A.optimizedB.emulsifiedC.contaminatedD.o_idated74.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-fle_ engines is their smokeless operation at all ship speeds.This is achieved by the superior bustion performance with the mon-rail fuel injection.This system maintains the fuel injection pressure at the optimum level right across the engine speed range, ensuring optimum bustion under all operating conditions.In addition, a selective shut-off of single injectors at very low speeds and an optimized e_haust valve timing help to keep smoke emissions below the visible limit.Sulzer RT-fle_ 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-fle_ 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 mon-rail injection is______.A.smokeless operationB.shockless operationC.noiseless operationD.no vibration operation76.According to above massage, RT-fle_ engine can optimize______.① fuel injection pressure② b ustion③ e_haust valve timingA.①②B.①②③C..③D.②77.The key feature of the Sulzer RT-fle_ system is that it gives plete freedom in the _____andoperation of fuel injection and e_haust valve actuation.A.meteringB.timingC.controlD.using78.The RT-fle_ engine can run at very low speed, this is made possible by follog things e_cept_______.A.the precise control of injectionB.the higher injection pressuresC.the optimized e_haust 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。
轮机英语三管面试
《外派船员面试手册轮机分册》三管轮面试问题及参考答案1.can you tell me about your educational background and workingexperience?Well ,I have been working for several shipping and manning companies in china .but I think x company is my favorite . I was registered here two years ago and I have worked for this company for two times .i am very satisfied with this company .Or I have worked as a seaman for ten years .but I have worked hard on board about 6 years . for the four years I was not on board .i just had my vacation or received training and tests .2 . what are the main duties of the third engineer ?The third engineer is usually responsible for the following :1)watch keeping from 0800 to 1200 ,and from 2000 to 2400 every day .2)operation and maintenance of other auxiliary machinery except under thecharge of the second engineer .3)giving assistance to the first engineer in all technical matters .4)taking positive measures in the safe and efficient operation of allmachinery ,and guarding against fire and oil pollution .5)safety produres and maintenance of all safety equipment ,and enginecontrol system in a thoroughly efficient state .6)carrying out instructions relating to ballasting and deballasting andrecording the operation .7)testing the telegragh before depature and recording all engine movement inthe bell book for staying in the engine room when vessel is entering or leaving a port or when the engine is on standby or in maneuvering .8)emergency fire pump and lifeboat engine .3.what chemicals did you use to treat the boiler water ?when you test alkalinity and acidity of water in boiler by pH test paper ? the result shows the boiler water is in acidiity . please describe what the possible cause is .I have ever used the following brand chemicals :unitor , drew and so on .We should keep the boiler water*s ph scale between 10.5 and 11.5 .If the water become of acidity ( ph scale is below 10 ) ,it is may be caused by following reasons :The water has not been given enough blow down ,or has not been filled enough alkalinity chemicals ..4 .how do you maintain emergency battery ?I should check and fill in some distilled , or electrolyzed solution (电解液)if necessary ,erase the oxide and test the gravity of the specification periodically .the record shall be made after work is done .5.describe the procedure to start an emergency generator ?1) to check the lube oil level in the crankcance and fuel oil level in the tank .2) to see whether there is any leakage .3) to check the air pressure if the generator is air started model ; and to check the battery voltage to see whether it is normal if the generator is the battery started model4）also to make sure there are no obstacles around the machine .6 .which machineries and spare parts should the third engineer be incharge of ?On my last vessel ,I was in charge of the following machines and the spare parts thereof :boiler , emergency batteries ,fresh water generator ,air conditions ,.refrigeration units ,electric insulations ,main switch board ,electric parts of deck machineris (winch ,windlass ,hatch cover equipment ) and some other machines as designated by the chief engineer .7during bunkering in the last vessel ,what were you assigned to do ?or what was your position during bunkering on your last vessel ?Just to listen to the orders from the second engineer ,but usually ,I was assigned to sound the oil level .8.as the third engineer ,what precautions do you need take to prepare for PSC inspection ?The third engineer is responsible for the fire fighting equipment ,life saving applicances and oil pollution prevention equipment . in US , the PSC carry out strict check on this equipment .so in order to meet the inspection ,under the leadership of chief engineers and master ,I have to make a detailed checklist on these equipment to make sure that these equipment are in good order .7what do you know about “SOPEP”?what is VRP , and what is VCP ? for the first question ,please refer to the questions and reference answers for the first engineer .VRP is vessel Response plan ; and VCP is Non-tanker vessel contingency plan .VRP is required oil pollution emergency plan made according to the requirement of oil pollution act 1990 of US ,which is a law ruling the tanker vessels sailing in the waters under the management of the US .in compliance with the legislation of the california state of the US ,all the nontanker vessels should prepare vessel contingency plan .8what is IMO ?what is ISO 9000?what is ISM ?what is SMS system ?IMO is international maritime organization under the united nations .ISO9000 m\eans international standard organization ,an organization making the quality management standards and doing the quality audit service .ISM means international management code for the safe operation of ships and for pollution prevention .this is compulsory rule made by the IMO .The ISM code includes 16 chapters falling falling into two parts :implementation for part one ,and verification and certification for part one .the 16 chapters are : general ,safety and environment protection policy ,company responsibilities and authority ,designated persons ,master responsibility and authority ,resources and personnel ,development of plans for shipboard operation ,emergency preparedness , reports and analysis of non conformity ,accidents and hazardous occurrences , maintainence of the ship and equipment ,documentation ,company verification ,review and evaluation ,certification and verifications and control ,certification and periodical verification ,verification ,interim certification ,and forms of certificates .the last four chapters are newly added in the new version of ISM Code .SMS means safety management system ,and this system is mad based on the 16 elements of ISM Code ,which is a compulsory part SOLAS 74 .the shipowner or manager cannot get document of compliance (DOC) and SMC without audited safety management certificate (SMC) by class designated by the flag registry country adiministration .9.when the fuel is provided by the supplier ,what specifications of the oilcan you get from the supplier receipt ?The following information of the fuel shall be avalaible : density ,viscosity ,temperature as delivered ,water content ,sulfur content ,flash point and so on .10.what is the maximum blood alcohol concertration (BAC) rate on board ? According to the STCW 95 ,the BAC shall not be more than 0.08% by weight any time when being tested ,but the EFR(Code of Federal Regulation )requires the BAC to be no more than 0.04% .watch-keepers ,are not allowed to drink any alcoholic beverage 4 hours berfore their watch .11tell us briefly about the working principles of the purifier ,the oil water seperator and air compressor .Purifier :the different gravity of two types of liquids: water and oil .the centrifugal force of the water move towards the outside of the disc while the oil ,which is smaller in gravity shall move toward the center of the disc .this makes the seperation of the two liquids .Oil water separator : (1) pump bilge water into first chamber :polymerization of the oil on the gathering plates ,(2) and then through a fine filter (15ppm) separation of water and oil ,(3)discharge of the water overboard via 15ppm monitor and the oil into oil sludge tank .Air compressor :take into the air from the outside atmosphere and compress it with the up going piston .then ,cool the compressed air .then compress the air once again until it reaches the stated pressure (depending on the air bottle allowed pressure )For the maintenance of the air compressor ,fistly ,must check to make sure that the suction valve and outlet valve to be sealed ;then make periodical lifting of the piston to make the pistons are in good condition .must check the crankcance lube oil everyday .14.why do you need to take the lube oil sample for analysis ? in the analyzing , what can you possibly find ?and if you find these substances ,what are the possible problems the engines may have ?why ?At least ,every three months ..by analyzing the samples of the lube oil ,I can find such things as metal dust ,viscosity ,and other impurities ,this is preventive measures in engine maintenance ..for example ,if I find metal (aluminum ,copper etc )inside the lube oil ,maybe something wrong with the engine and part of the engine is broken .15.how to operate incinerator ? what kind of garbage can not be throwninto incinerator ?First ,check the oil level in the sludge oil tank ,open residue cock and discharge oily water ;heating the sludge oil in the tank up to 90 cent igrade ;start the incinerator .in the beginning ,combustion sludge oil with with diesel oil ,and after the water content in sludge oil is comparatively low ,stop supplying diesel oil and use sludge oil only .attention :the temperature in combustion cannot be higher than the stipulated figures of the incinerator (usually not more than 1200 degree in centigrade )The following garbage cannot be thrown into the incinerator :(1) any containers which have contained gases under pressure ,or aerosol cans into the incinerator .(2) the materials that may produce harmful gases or ashes .(3) the materials that may produce high temperature and prolonged incineration of such materials that may cause damage to the incinerator .16 .when you do the watch keeping in the engine room ,what should you be careful about ?I should take close watch on the fuel oil and lubricating oil condition to notice any possible problems arising from abnormal temperature ,,leakage ,or some other problems ; if hearing is seeing abnormal noises for machines ,I should make a quick judgement and report them to C/E or even master I myself cannot deal with it ,obey the rules of the company and the instruction from C/E and master and some warning from the deck department .l17 when do you have call the chief engineer to the engine room ?In emergency situations such as fire ,explosion and flooding etc ;Some other situations include :(1)if damage to or loss of function of the machinery occurs which maycause a hazard to the safe operation of the vessel(2)if a malfunction of certain equipment occurs that may cause damage orbreakdown of the propulsion machinery ,auxiliary machinery ,monitoring system or speed regulating system ;(3)in situation which the engineer officer of the watch is in doubt as towhich decision to make or which measure to adopt .18 what is your position (station ) in the muster lists ,for example ,during the fire fighting ,abandon vessel ,oil pollution prevention etc ?Abandon vessel :boarding the lifeboat to manage and control the engineFire fighting :manage and operate the emergency fire pmp .Oil pollution prevention ;collect the oil from the vessel or go down with the lifeboart to collect the oil from the sea .19.how is the oil sample taken during bunkering ?Open the cock of the special connector of the oil pipe .drain the fuel oil to the oil sample bottle all the bunkering time . seal the bottles and request the representive of the supplier to sign his name after bunkering .never accept any oil sample taken in advance or taken without the conformation by the 2nd engineer .20.as an engineer ,you must be familiar with SMS .can you please tellwhat is DP(s) and who was the DP of the company you served last time ?DP refers to the designated person in the SMS manual of a company .in my previous vessel company ,there was only one DP ,it was jack .21 .if it is cold ,you will find the air conditioner compressor stop automatically ,do you know the reasons ?When it is cold ,the suction pressure should be low ,if the suction pressure is lower than the setting pressure of the pressure controller ,the compressor will stop automatically .22.what is the use of a purifier ?explain the purpose of a gravity disc ? Purifier is used to separate oil from impurities such as sludge , ash ,various salts and water existing in the oil by means of gravitational rotation (centrifuging ).gravity disc is used for the purpose of establishing the correct oil water interface depending on the oil specific gravity .23.how can you create good vacuum on the fresh water (FW) distiller ? First of all ,to create good vacuum on the FW distiller .i must make sure that the internal chamber is sealed against possible entrance of the air during operation .secondly ,the air ejector and ejector pump should be in good condition .thirdly ,some revelant valves parking should be sealed against air leakage ,lastly ,the unit should be free from scales (水垢) 。
轮机英语三管轮试题 分油机
Lesson 171682. Emulsification of oil will occur when mixed withA. airB. black oilC. waterD. ice cream1683. A centrifuge arranged to separate two liquids is known as_____.A. an oily water separatorB. a purifierC. a centrifugal compressorD. a clarifier1684. A centrifuge arranged to separate impurities and small amounts of water from oil is known as_____.A. an oily water separatorB. a purifierC. a centrifugal compressorD. a clarifier1685. When a clarifier is running the impurities and water collect at the bowl_____.A. centerB. peripheryC. inletD. upper parts1686. For many years marine centrifuges were designed for_____ operation, that is the machines were run for a period during which solids accumulated in the bowl. The machine was stopped when the accumulated solids began to impair its performance.A. purifyingB. batchC. long periodD. temporary1687. For a purifier, changing to a gravity disc with larger hole diameter will move the interface towards the_____.A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface 1688. 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 surface 1689. The_____ of the gravity disc is too big. It cause oil to flow through the water outlet. We changed the disc and no oil is found in the water outlet.A. gravityB. diameterC. circumferenceD. cylinder1690. Dirty oil must be_____ before being used again .A. mixed with clean oilB. purifiedC. heatedD. strained1691. Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?A. Height of the machineB. Temperature of the liquid sealC. Gravity discD. Bowl diameter1692. For a L.O. purifier, if the back pressure of the oil outlet is too high, the interface between oil and water in the bowl will_____.A. be interruptedB. move downwardsC. move outwardsD. retain original position1693. When in operation, it is unavoidable that a small amount of oil_____ throughleakage, and in order to compensate for these leaks the system is connected to a feed pump.A. escapesB. overheatsC. expandsD. accelerates1694. Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and_____ in size.A. expandB. extractC. increaseD. decrease1695. When a centrifuge is arranged to separate impurities and small amount of water from oil, it is known as a_____.A. purifierB. separatorC. filterD. clarifier1696. _____ is arranged for cleaning the lubricating oil in the system and clean oil can be provided from a storage tank.A. A filterB. A centrifugeC. A distillerD. A generator1697. In a purifier, the interface between the liquid seal and the oil should be positioned as close as possible to_____.A. the outlet of oilB. the outlet of waterC. the bowl peripheryD. the center of bowl1698. ____ is the breakdown of surface tension between oil droplets in an oil water mixture which causes them to join and increase in size.A. WearB. ContaminatingC. CoalescenceD. Coarse separating1699. The position of the interface between oil and water within the centrifuge is achieved by the use of_____.A. gravity discB. centrifugal bowlC. a stack of discsD. main sealing ring 1700. To start the ejection process the oil feed to the centrifuge is first shut off and the oil remaining in the bowl removed by admitting_____.A. flashing waterB. operating oilC. flushing waterD. sealing water 1701. The interface between the liquid seal (water) and the oil should be positioned_____ possible to the bowl periphery.A. as far asB. as soon asC. as close asD. as closer as1702. What is used to purify water and foreign matters from the fuel oil in the following?A. CompressorB. SeparatorC. EvaporatorD. Fuel pump1703. They understand the_____ of automatic sludge discharging of the purifier. But they are not good in practice.A. principleB. principalC. theoryD. case1704. The diameter of the gravity disc is too big. It causes oil to flow through the water outlet. We changed the disc and no_____ is found in the water outlet.A. waterB. oilC. scaleD. ridge1705. If oil density were greater than water' s, the oil separator_____.A. did workB. would work wellC. didn't workD. wouldn't work1706. Sediment collects in a tubular purifier_____.A. on top coverB. on sides of bowlC. in drain line on the discsD. on the discs1707.. Both fuel oils and lubricating oils require _____________before passing to the engine.A. treatmentB. heatingC. coolingD. boiling 1708. The treatment of the fuel oils involves storage, heating, filtering and ____________.A. centrifugingB. pressurizingC. atomizationD. igniting 1709. ____________is used to separate two liquids or a liquid and solids as in contaminated oil.A. Oily-water separatorB. PurifierC. ClarifierD. Centrifuge1710. Where a centrifuge is arranged to separate two liquids, it is known as a ___________.A. purifierB. clarifierC. liquid-separatorD. oily-water separator1711. Where a centrifuge is arranged to separate impurities and small amounts of water from oil it is known as a ____________.A. A. Oily-water separatorB. PurifierC. ClarifierD. Centrifuge1712. “A centrifuge consists of an electric motor driving a vertical shaft on the top of which is mounted the bowl assembly.”According to this sentence, we can know that ____________is mounted on the top of the vertical shaft.A. a centrifugeB. an electric motorC. a bowl assemblyD. a driving motor1713. A centrifuge of which the bowl is arranged as the upper and lower parts separate discharges the sludge ____________.A. by opening the separator manuallyB. by separating the lower part from the upper part automaticallyC. by separating the upper part from the lower part automaticallyD. continuously1714. Before the in a purifier is ejected, ______________.A. the oil feeding is stopped and replaced by admitting flushing water.B. the flushing water feeding is stopped and replaced by admitting oil.C. the feeding of dirty oil and flushing water is stopped.D. the feeding of dirty oil and flushing water is admitted.1715. Main engines as well as auxiliary engines operating on heave fuel should have continuous ______ on the lubricating oil, either according to the bypass or batch principles.A. filteringB. centrifugingC. depositingD. operating1716. Modern centrifuge designs enable continuous over a considerable period of time. This is achieved by _____ which is timed to discharge the sludge at regular intervals.A. an injection processB. an ejection processC. a separation processD. a heating process1717. When two oil separators are working in series, they should work with ___ A. both as clarifiers B. first one as clarifier, second one as purifierC. both as purifiersD. first one as purifier, second one as clarifier1718. One of the reasons that cause oil flowed from sludge outlet of a self –cleaning separator is ___.A. seal water supply be cut offB. make up water supply be cut offC. oil outlet valve closed or not open sufficientlyD. the flow rate of oily water is too much1719. When separating lube oil in oil separator, the optimal separating quantity is__of the rated quantity on name plateA. 100%B. 1/2C. 1/5D. 1/31720. When separating fuel oil in oil separator, the separating quantity is ___of the rated quantityA. 100%B. 80%C. 1/2D. 1/31721. The separating effect of oil separator is not good, the reason may be __A. too little seal waterB. improper gravity discC. oil discharging pump not working very wellD. low water level of the working water1722. When separating the lube oil without additive, it is usually cleaned with hot water .the aim is to remove __from itA. acidB. sludgeC. mechanical impurityD. salinity1723. When finish working on the oil separator, you should ___firstlyA. cut off the powerB. cut off the oil inletC. open guide water valveD. close oil outlet valve1724. To ensure oil separator working in normal condition, the interval between two sludge dischargings should not exceed ____A. 2hB. 4hC. 5hD. 6h1725. _______can cause oil flow from water outlet of a separatorA. oil inlet valve opening too quicklyB. oil temperature too highC. diameter of gravity disc too smallD. viscosity of oil too low1726. ____ can not cause oil flow from water outlet of self cleaning separatorA. oil temperature too highB. diameter of gravity disc too largeC. oil temperature too lowD. high level tank out of water1727. ____can cause oil flow from sludge outlet of self cleaning separatorA. too much sludge accumulated in separator bowlB. diameter of gravity disc too largeC. high level tank lack of waterD. oil input too rapidly 1728. ________ are required to remove small quantities of water from a much larger amount of oil. Additionally it must separate solids.A. IncineratorsB. CentrifugesC. Oily water separatorsD. Incinerator1729. On board supply vessels, a centrifuge is normally used to purify ___________.A. cooling waterB. fuel oilC. sea waterD. diesel intake air1730. For optimum results, centrifugal purification of heavy fuel oil should be accomplished with the fuel at the lowest practicable _________.A. throughputB. additive percentC. cetane numberD. TBN number 1731. Heavy residual fuel oils are heated prior to centrifuging to __________.A. reduce fuel weightB.increase specific gravityC.separate fuel from lube oilD.reduce fuel viscosity1732. In a disk-type lubricating oil purifier, ___________________.A. the purifier driving gears are lubricated by the reclaimed.B. oil as it leaves the bowl all dirt and sludge are automatically discharged with the cooling water.C. sealing water must never be supplied until after oil is fed to the unit.D. deterioration of the bowl ring gasket will cause the purifier to lose its water seal. 1733. The size of the discharge ring used for the efficient operation of a disk type purifier is dependent upon the ______.A. rated capacity of that purifierB. viscosity of the oil being purifiedC. maximum design speed of that purifierD. specific gravity of the oil being purified1734. One engine manufacturer recommends heavy fuel oil should not be heated above 80o C to 95o C (176o F to 203o F) before purification. This upper limit should beobserved to ensure against _______________.A. flattening of the bowl neoprene O-ringsB. operation within the explosive range of the fuelC. excessive purifier operating pressuresD. excessive oil viscosity。
轮机英语三管轮试题 造水机
Lesson191735. _____ is the production of pure water from sea water by evaporation and re-condensing.A. EvaporationB. CirculationC. CondensationD. Distillation1736. 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. dissipates1737. With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by_____.A. a brine pumpB. an air ejectorC. a feed pumpD. distillate pump 1738. In a vacuum boiling evaporator, the fresh water generated is pumped out by_____.A. a brine pumpB. an air ejectorC. a feed water pumpD. a condensate pump1739. When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water_____.A. to decrease scale formationB. for better cooling effectC. for more economical purposeD. to raise vacuum1740. When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water_____.A. to cut down the amount of cooling water neededB. to prevent an excess amount of cooling water from being discharged to the bilgesC. to supply hot water to the evaporator for more economical operationD. None of the above is tree.1741. The process during which liquid containing a reasonable amount of sensible heat at a particular pressure immediately changes into steam after admitted to a chamber at a lower pressure is called_____.A. boiling offB. flash evaporationC. condensationD. none of the above 1742. In the process of_____, liquid changes into gas.A. evaporationB. frostingC. condensingD. compressing 1743. Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?A. Accidental discharge of oil.B. Disposal of oil residues.C. Quantity of water produced by F. W. G.D. Discharge of dirty ballast or cleaning water from fuel oil tanks.1744. When the water produced from most evaporator is supplied for drinkingpurpose, it must be treated to ensure it is biologically pure and_____.A. slightly acidicB. slightly alkalineC. no saltyD. slightly bitter 1745. _____ provides the head or pressure to supply the domestic water where required.A. The compressed airB. The compressing airC. The transfer pumpD. The head tank1746. _____ is used for washing and drinking.A. The ballast systemB. The salt water systemC. The bilge systemD. The domestic system1747. Water evaporates or steam condenses at the saturation temperature, which depends upon the pressure, the higher the pressure_____ the saturation temperature.A. the moreB. the higherC. the lowerD. the highest1748. We use_____ to distill fresh water from sea water.A. engineB. sea water pumpC. cylinder coolerD. fresh water generator1749. Because of the reduced_____ in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.A. temperatureB. water levelC. pressureD. rate of flow1750. The fresh water generator produces fresh water_____.A. by cooling sea waterB. by heating sea waterC. by evaporation of sea waterD. by purifying sea water1751. Clean oil is achieved in a clarifier bowl where the impurities and water collect at the bowl_____.A. bottomB. topC. centerD. periphery1752. The designed capacity is 25 tons a day, but the fresh water generator can only_____ 22 tons at present.A. consumeB. distillC. runD. operate 1753. More than one stage of evaporation can take place by admitting the sea water into chambers with progressively_____ pressure in the flash evaporator.A. lowerB. higherC. the lowerD. the higher 1754. Because of the reduced_____ in the distillation system, some of the sea water boils as it flows through the tubes of the evaporator.A. pressureB. temperatureC. densityD. volume 1755. In_____, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.A. a flash generatorB. a flash evaporatorC. a vacuum boiling evaporatorD. a boiler1756. Which of the following statements is true concerning any evaporator?A. High conductivity of the distillate indicates distillate salinity is excessive.B. Increasing the absolute pressure of the shell will increase the distiller's capacity.C. Mesh separators are used in evaporators to filter the distillate.D. Reducing the brine density will reduce the heat lost overboard.1757. The process of boiling seawater in order to separate it into freshwater vapor and brine is usually defined as_____.A. dehydrationB. condensationC. evaporationD. dissolution1758. When a flash-type evaporator is to be secured for an extended period of time, the entire unit should be drained, cleaned, and_____.A. completely filled with saltwaterB. filled with de-scaling compoundC. tightly closed to exclude airD. vented to the atmosphere1759. Which of the following descriptions best identifies the operating principal of a flash-type evaporator?A. Sea water is heated to boiling temperature while under a vacuum.B. Sea water is passed over heated plates in a thin film.C. Heated sea water is injected into a vacuum chamber.D. Sea water is forced through a heated eductor.1760. Which of the listed problems could produce a high absolute pressure within a flash type evaporator?A. Production of high salinity distillate .B. Seawater feed temperature below 165oC.C. A leak in the first stage demister .D. A cracked distillate pump vent line.1761. Distilled water from an evaporator may be discharged into a potable water(饮用水)tank _____.A. through a detachable hose connectionB. after passing through an activated charcoal filterC. after chemical analysis shows it is fit for consumptionD. through a solenoid operated three-way valve1762. Which of the following statements is correct relative to distillation plant operation?A. Distillation is the process of boiling seawater to produce vapor which is condensed into fresh water.B. Evaporation is the second part of the distillation process where brine is removed.C. Brine is the result of condensed sea water vapor.D. Distillate is the product resulting from the evaporation of fresh water vapor. 1763. Brine density in a distilling plant is measured with a/an_____.A. psychrometerB. salinometerC. anemometerD. sphygmomanometer1764. Tube leaks in the distillate cooler of a two stage flash evaporator will result in_____.A. loss of second stage vacuumB. contamination of the distillateC. lower feed inlet temperatureD. contamination of the second stage condenser1765. Why will a two stage flash type distilling plant tend to operate more efficiently when operating in cold seawater?A. The colder seawater passing through the condenser tube bundles of the various stages increases evaporator vacuum.B. The amount of heated feed water discharged from the feed water heater after condenser is increased.C. Fewer non-condensable gases are created by the flow of colder seawater.D. More seawater is allowed to pass through the flint stage overflow weir.1766. One distinct advantage of flash type evaporators, as compared to most other evaporators, is that in a flash evaporator_____.A. high temperature distillate can be re- circulated to induce additional flashingB. scale formation is not a severe problemC. cold shocking is more effective in removing scaleD. water purity is greatly increased at high capacity1767. Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because_____.A. the distillate produced has greater purityB. no boiling occurs on heat transfer surfacesC. evaporation occurs at a higher rateD. the incoming feed is at a higher temperature1768. The primary reason low pressure evaporators produce distillate more efficiently, and with less scale formation, than high pressure evaporators is_____.A. evaporation is accomplished in a vacuumB. due to the higher temperature of the incoming feedC. due to the latent heat of evaporation principleD. evaporation in a submerged medium produces more distillate1769. 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, or a separate vacuum pumpD. condensation of the distillate1770. Scale accumulation on evaporator heat exchange surfaces_____.A. increases brine densityB. increases distillate salinityC. reduces metal corrosionD. reduces heat transfer1771. Excessive scale formation in a distilling plant may result from_____.A. poor distillate qualityB. reduced evaporator capacityC. low brine concentrationD. improper vacuum regulation1772. Which of the listed conditions will cause the feed water, that has not flashed to vapor in the first-stage of a flash evaporator, to flow into the second-stage?A. Gravity siphon effect.B. Higher vacuum in the second-stage.C. Difference in brine density between first and second stages.D. lower pressure in first-stage.1773. The vacuum maintained in the salt water feed heater shell of a flash-type evaporator is generally accomplished by_____.A. a separate air ejector unitB. a direct unimpeded connection between second stage and salt water feed heaterC. either by vacuum drag or an external line from the first stage via a fixed orificeD. the fixed orifice provided in the steam supply line1774. In which of the areas listed would you expect to find the highest salt concentration in a flash evaporator?A. Distiller air ejector cooling medium.B. Saltwater heater discharge.C. First-stage internal feed box.D. Second-stage internal feed box. 1775. 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 surfaces.B. Internal distillate cooler tubes.C. Flash chamber vertical surfaces.D. Distilling condenser tubes. 1776. Which of the conditions listed represents the greatest effect of excess frost accumulation on the evaporator coils?A. Keeps the refrigerated space cooler.B. Reduces the efficiency of the plant.C. Takes the load off the compressor.D. Has no affect on the system.1777. Which statement concerning the collection of fresh water is FALSE?A. Fresh water may be obtained from fish.B. lifeboat covers or canopies should be washed with rain before drinking water iscollected.C. Fresh water may be collected from condensation inside the life-raft.D. Freshwater cannot be produced from standing seawater.1778. Seawater may be used for drinking water_____.A. at a maximum rate 'of two ounces per dayB. after mixing with an equal quantity of fresh waterC. if gather during or immediately after a hard rainD. under no circumstance1779. Distilled water is now largely used on board, this may be corrosive (due to presence of dissolves CO2) and_____ to the taste.A. flatB. slatC. sweetD. acid 1780.. A flash-type evaporator discharges heated seawater into a chamber that is maintained at a pressure _____________ than the vapor pressure of the entering heated seawater, and subsequently the flashed water vapor thereby produced.A. lower condensingB. higher coolingC. lower coolingD. higher condensing1781. The design of ___________for a flash type evaporator is of critical importance because it must provide an optimum feed water spray pattern that facilitates the flashing process, and it must also maintain a pressure differential between successive stages.A. condenserB. flashing deviceC. lashing deviceD. vacuum pump 1782. Which one of the following might not be employed to create vacuum for flash type evaporator__________.A. high-pressure steam-driven air-ejectorB. motor-driven vacuum pumpC. water-motivated air educatorD. centrifuge pump1783. The flash-evaporator is different with the submerged-tube evaporator in that for the former_________.A. Water is heated into vapor on heating surfacesB. Water is vaporized by pressure differenceC. There are no heating-transfer surfacesD. There are more heating-transfer surfaces1784. For a flash type evaporator, the seawater heater will have to maintain a _____enough temperature to minimize scale formation.A. lowerB. higherC. lowD. high1785. For a flash type evaporator, a demister is located ______the condenser.A. afterB. beforeC. insideD. outside1786. The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell ______.A pressure does not fluctuate rapidlyB pressure remains steady and unchangedC brine density does not exceed 1.5D brine density is too low1787. The heated feed water entering any flash chamber of a flash-type evaporator will ______.A vaporize, with the unflashed water remaining at the temperature at which it entered the flash chamberB vaporize, with the unflashed water equalizing to the saturation conditions existing in the flash chamberC vaporize, with the remaining water at a temperature greater than it entered the flash chamberD boil, allowing steam bubbles to rise through the brine at the bottom of the flash chamber1788. The three basic parts of any eductor are the nozzle, the suction chamber, and the _______.A injectorB compressorC diffuserD siphon1789. _______ is based upon the biological process of osmosis, which allows fluids to pass through a semi –permeable membrane.A. FlashB. Reverse osmosisC. Boiling offD. Distillation1790. The desalination of water by ______is a membrane separation process in which the water from a pressurized saline solution (seawater) is forced through a synthetic semi-permeable membrane leaving its salts behind (dissolved solids)A. distillationB. flashC. reverse osmosisD. boiling off1791. The function of the _______is to convert seawater into fresh water by vacuum distillation, for the supply of high quality fresh water for domestic and process utilization.A. oily water separatorB. incineratorC. fresh water generatorD. centrifuges1792. The efficiency of a flash type evaporator can be increased by ________A. lowering brine discharge densityB. decreasing the absolute pressure of each stageC. increasing the saltwater feed heater temperatureD. increasing the pressure at the spray pipe1793. The second stage feed water temperature and shell absolute pressure in a multistage, flash type, distilling plant is ________A. higher than the first stage feed water temperature and absolute shell pressureB. lower than the first stage feed water temperature and absolute shell pressureC. the same as the first stage feed water temperature and absolute shell pressureD. not related to the feed water temperature and absolute shell pressure1794. On a multistage flash type evaporator, the flash chamber is ________A. combined as part of the salt water feed heaterB. the open area above the brine levels in the first and second stagesC. combined as part of the distillate coolerD. another term used to describe the vapor feed heater1795. Which of the listed chemicals can be routinely used to maintain the hygienic quality of potable water?A. hydrochloric acidB. chlorineC. sulfuric acidD. zinc chromate 1796. Drops of sea water removed by demister _______in the fresh water generator.A. fall due to gravity in to the brine sumpB. fall due to gravity in to the evaporation sectionC. are removed by fresh water generatorD. are removed by sea water generator1797. The hot water in let and outlet valves in the fresh water generator should be open ____during the starting process.A. when there is minimum of 90% vacuumB. before starting the ejector pumpC. when there is a minimum of 30% vacuumD. after stop the ejector pump1798. The combined brine/air ejector in fresh water generator is supplied by _______creates a vacuum in the system in order to lower the evaporation temperature of the feed water.A. the fresh water pumpB. the feeding pumpC. the compressed air installationD. the separate vacuum pump 1799. The air valve installed on the upper part of the fresh water generator________A. should be open during vacuum creation procedureB. should be open after stopping the plantsC. should remain closed all the timeD. should remain open all the time1800. The combined brine/air ejector creates a vacuum in fresh water generator in order to_______A. increase the evaporation temperature of the feed-waterB. decrease the evaporation temperature of the feed-waterC. decrease the temperature of the feed-waterD. increase the evaporation temperature of the feed-water1801. The ejector pump used in the fresh water generator will_______A. discharge brine over waterB. supply condenser onlyC. feed the evaporatorD. circulate seawater between condenser and evaporator1802. The fresh water generator with a vacuum of _____allowing the brine to evaporate at a temperature of 40-50o C .A. 60-70%B. 40-50%C.90-95%D.20-30%1803. The vapour generated in the evaporator process through ______ in the fresh water generatorA. the condenser onlyB. the condenser and demisterC. the demister onlyD. combined brine/air ejector1804. Having reached the boiling temperature, the feed water undergoes _____in the fresh water generator.A. total evaporationB. partial evaporationC .partial condensationD. total condensation1805. The ____used in the fresh water generator extracts the produced fresh water from ten condenser and pumps the water to the fresh water tank.A. distillate pumpB. ejector pumpC. combined brine/air ejectorD. salinometer1806. The ______used in the fresh water generator is a single-stage centrifugal pump which supplies the condenser with sea water and the brine/air ejector with jet water as well as feedwater for evaporation.A. distillate pumpB. feeding pumpC. combined brine/air ejectorD. salinometer1807. Which of the following sequence is correct relative to distillation plant stopping procedures?(Ⅰ)Open the air screw on the plant;(Ⅱ)stop the ejector pump;(Ⅲ)stop the freshwater pump;(Ⅳ)stop the hot water supply to the unit.A. (Ⅲ), (Ⅱ), (Ⅰ),(Ⅳ)B.(I)(III)(IV)(II)C.(IV)(I)(III)(II)D.(IV)(III)(II)(I)1808. Which of the following sequence is correct relative to distillation plant starting procedures?(I) close the air screw on the plant and allow the water to flow through the condenser; (II) start the freshwater /distillate pump; (III) supply hot water to the plant (IV) switch on the salinometer; (V) start the ejector pump and create a vacuum of at least 90%.A. (Ⅲ), (Ⅱ), (Ⅰ),(Ⅳ),(V)B.(I)(V)(III)(IV)(II)C.(IV)(I)(III)(II) (V)D.(V)(IV)(III)(II)(I)1809. Early models of the flash-type evaporators used a separate shell-and tube heat exchanger as the air ejector condenser. More recent models use a combined air ejector condenser with the __________A. distilling condenserB. salt water feed heaterC. distillate coolerD. flash chamber1810. The demisters installed in a flash-type evaporator serve to _________A. deaerate the first effect distillateB. filter the condensed flash vaporsC. deaerate the first and second effect distillateD. remove small water droplets entrained in the flashed vapor1811. In the two stage flash distilling plant, which of the pumps listed is vented to the shell of the second stage in order to remove vapor from the pump suction?A. Condenser circulatingB. Feed-water heater drain pumpC. Distillate pumpD. Air ejector condenser drain pump 1812. In a flash type evaporator, the brine overboard pump is vented directly to the _________A. saltwater heater shellB. the condensation of the saltwater feedC. air ejectors, eductors, or a separate vacuumD. condensation of the distillate1813. One advantage of a flash distilling plant when compared to a submerged tube distiller is ____________A. greater distillate purity through high temperature evaporationB. cold shocking for scale removal is not requiredC. less internal corrosion because of lower brine densityD. less feed-water is required for equal plant capacity1814. Why will a two stage flash type distilling plant tend to operate more efficiently when operating in cold seawater?A. The colder seawater passing through the condenser tube bundles(束)of the various stages increases evaporator vacuum.B. The amount of heated feed water discharged from the feed water heater after condenser is increaseC. Fewer non-condensable gases are created by the flow of the colder seawaterD. More seawater is allowed to pass through the first stage overflow weir(溢洪堰)轮机英语1815. Under normal operating conditions, the highest temperature and pressure conditions existing in a flash-type evaporator will occur in the _________A. first stageB. second stageC. distillate coolerD. salt water feed water 1816. Condensate formed within the first-effect tube nest of a double-effect, low pressure evaporator, is removed by a ________________A. series of baffles (挡板)B. crossover (交叉) pipeC. condensate separatorD. drain pump。
三管轮试题
三管轮试题70分及格基本信息：[矩阵文本题] *1. 应急发电机应能保证对公约规定的设备持续供电﹍﹍﹍小时。
[单选题] * A．15小时B．20小时C．18小时(正确答案)D．25小时2. SOLAS公约规定应急发电机的燃料油柜油位应为油柜容积的﹍﹍﹍。
[单选题] *A．1/4~1/2B．1/2~2/3C．2/3~3/4(正确答案)D．1/3~3/43. SOLAS公约规定救生艇启动设施应能在—15℃的环境温度下，﹍﹍﹍分钟内启动发动机。
[单选题] *A．2(正确答案)B．3C．4D．54. 救生艇油箱应备足够发动机运行﹍﹍﹍小时的燃料油。
[单选题] *A．18B．24(正确答案)C．30D．485. MARPOL公约规定400总吨及以上船舶只要满足公约要求特殊区域内也可以使用油水分离器，但﹍﹍﹍区域除外。
[单选题] *A．地中海B．波罗的海C．黑海D．南极(正确答案)6. 《MARPOL公约》附则Ⅰ对油水记录簿C-11记录时间做了修改，做为三管轮为满足公约的新规定，应至少﹍﹍﹍向轮机长汇报一下各污油柜存量。
[单选题] * A．2周B．3周C．1周(正确答案)D．5周7. MARPOL公约对生活污水来源做出了明确规定，不包括下面哪项﹍﹍﹍。
[单选题] *A．厕所排水孔B．病房的面盆C．病房的洗澡盆D．洗衣机下水孔(正确答案)8. MARPOL公约对经过处理过的生活污水做出了规定，特别是对其中的大肠杆菌含量应控制在﹍﹍﹍。
[单选题] *A．＜150个/mlB．＜200个/mlC．＜250个/ml(正确答案)D．＜500个/ml9. 下列那种物质可以利用焚烧炉进行焚烧处理﹍﹍﹍。
[单选题] *A．塑料垃圾B．含重金属的垃圾C．含氯化物的石油提炼产品D．生活污水处理装置产生的污泥(正确答案)10. 在港口国检查中，对应急消防泵压力试验，一般要求船头和驾驶台各接一根皮龙，其射程应不小于﹍﹍﹍米。
轮机英语三管轮试题 货物装卸
1875. _____ are used for cargo handling.A. CranesB. Mooring winchesC. WindlassesD. Foreman 1876. 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. hold1877. 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. castB. putC. holdD. let out1878. 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 above1879. In a ordinary cargo crane, _____ is fitted to rotate the crane.A. the slewing motorB. the lulling motorC. the hoisting motorD. none of the above1880. The crane is usually mounted on a pedestal to offer adequate_____ to the operator.A. timeB. spaceC. lengthD. visibility1881. In a general cargo crane, _____ is fitted to lift the cargo load.A. the slewing motorB. the luffing motorC. the hoisting motorD. none of the above1882. When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the_____.A. dockB. holdC. pedestalD. machinery space1883. Cargo handling unit is rated according to the_____ to be lifted.A. cargo craneB. jibC. safe working loadD. oil pressure 1884. Topping wires fix the height of the derricks and_____ to the deck may be used to prevent fore and aft movement.A. staysB. winchesC. barrelsD. brakes1885. _____ may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).A. A capstanB. A holdC. A warp endD. A mooring drum1886. Manually operated band brakes may be fitted and_____ will have a brake arranged to fail-safe.A. the drive pumpB. the drive motorC. the warp endD. the purchase 1887. In cargo crane, _____ for lifting the load.A. a hoisting motorB. a luffing motorC. a mooring motorD. a slewing motor1889. These include deck machinery such as mooring equipment, anchor handling equipment, cranes and_____.A. boilersB. bow thrustersC. stabilizersD. hatch covers1890. A warp end may be fitted for operating the derrick topping wire which adjusts the derrick _____.A. lengthB. slackC. heightD. rotation direction1891. In a general cargo crane, three principal movements are_____; _____; _____.A. hoisting/luffing/slewingB. lifting/raising/loweringC. rotating/raising/handlingD. hosting/lowering/moving1892. For occasional heavy loads, two cranes can be arranged to work together. The operating _____ for deck crane motors may be hydraulic electric.A. principleB. mediumC. instructionD. voltage1893. 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 viscosity1894. The oil in a cargo winch gear box should be sampled periodically to_____.A. prevent the gear box from leakingB. prevent the oil from becoming inflammableC. make sure it has not become contaminatedD. make sure the motor bearings are lubricated1895. The duty of a deck winch is to lift and lower a load by means of a fixed rope on_____.A. a warp endB. a mooring winchC. a worm gearD. a barrel 1896. Deck cranes require_____ time to prepare for working cargo than derricks.A. lessB. moreC. manyD. much1897. Some cranes are mounted in pairs on a common platform which can be rotated through_____.A. 360oB. 270oC. 180oD. 90o1898. _____ can be operated independently or locked together and operated as a twin-job cranes of double capacity.A. Two derricksB. A derrick and a craneC. Two cranesD. A crane and a winch课后练习1899. The crane is usually mounted on a pedestal to offer adequate ______ to the operator.A. timeB. spaceC. lengthD. visibility1900. When the union purchase derrick is operated, one derrick os positioned over quayside and the other almost vertically over the_______.A. dockB. holdC. pedestalD. machinery space1901. Cargo handling unit is rated according to the ________to be lifted.A. cargo craneB. jibC. safe working leadD. oil pressure1902. _____are used for cargo handling.A. cranesB. mooring winchesC. windlassesD. foreman大连新题1903. Which systems in the hydraulic systems of crane always holds single side of load?A hoisting system onlyB hoisting system and luffing systemC hoisting system and slewing systemD slewing system1904. The crane jib is raised and lowered by means of ______.A a mooring winchB a hoisting winchC a slewing winchD a luff9ing winch1905. ______have replaced derricks on many modern ships.A. CranesB. WinchesC. CapstansD. Hydraulic motors添加题1906. For occasional heavy loads, two cranes can be arranged to work together. The operating _______ for deck crane motors may be hydraulic or electric.A principleB mediumC instructionD voltage。
轮机英语口语测试模拟卷参考答案(三管轮A)
轮机英语口语测试模拟卷参考答案（三管轮A）Section A 朗读Watchkeeping is the fundamental responsibility of seafarers. It can be grouped into navigational watchkeeping and watchkeeping in port.The members of the engine department except the chief engineer are divided into three shifts during the voyage. Each shift will keep watch for four hours. One is during the daytime and the other is at night, that is 8 hours altogether in a 24-hourday. Every shift has an engineer in charge. The others who are not on duty will study, take part in repair and maintenance of the machinery, or have a rest.The duty engineer should be responsible for what happens during the watch. If there is anything beyond his command, the duty engineer must report it to the chief engineer and fill in various records in time. When he hands over the watch, he must tell the details about everything that happened during his watch and sign the record.When the ship stays in the port, only some crew take part in the watchkeeping. The main task is to manage generators to ensure electrical supply and supply of oils, water, steam and gases for daily use.Section B 口述Briefly State the Type of Marine Pumps and Their Uses(参考答案)The are mainly three types of pumps on board, the displacement pump, the centrifugal pump, and the ejector pump. The displacement pump has the reciprocating pump and the rotary pump, the former being the general feed pump, the fire pump, the bilge pump, the sanitary pump, the ballast pump and so on, the latter being the gear pump, the vane pump and screw pump which are used for delivering the liquid with small capacity and high pressure. The centrifugal pump has volute pump and diffuser pump, which are use to deliver the liquid except very small capacity or very low speed. The ejector pump is simple in construction, and its efficiency is comparatively low, and also used widely on board.Section C 回答问题7.What are the three departments on an ocean going vessel?8.How many people are three in your family and what are they?9.When do you keep watch in the engine room when the ship is at sea?10.What well-known ports in the world have you been to?11.What could you say when you ask for help?12.Where did you graduate?1。