轮机英语历年真题43期

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三管轮轮机英语大证考试真题41期

中华人民共和国海事局2006年第3期海船船员适任证书全国统考试题(总第41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. A diesel engine is similar to a gasoline engine except that the former has no ______.A. cross-headB. spark plugC. connecting rodD. cylinder2. A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, iscommonly classed as a ______.A. slow-speed dieselB. medium-speed dieselC. high-speed dieselD. constant-speed diesel3.Which of the diesel engine components listed increases air density and helps to improve engineoperating efficiency?A. ImpellerB. CompressorC. After-coolerD. Exhaust diffuser4.For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because ______.A. it has a longer power strokeB. more air gets into the cylinder each strokeC. it develops twice as many power strokes at the same speedD. higher combustion pressure is developed5.The intake valves in a diesel engine are reseated by ______.A. cam followersB. push rodsC. combustion gasesD. valve springs6.According to the way the energy of the exhaust gases is utilized, pressure-charging can be dividedinto two main systems, namely, the constant-pressure system and ______.A. the pulse-phase systemB. the pulse Doppler systemC. the pulse systemD. the pulse interval system7.An over-speed safety device is usually fitted to a generator engine for______in the event of over-speed.A. cutting power off the engineB. increasing the fuel pump settingC. braking the crankshaftD. stabilizing the ship speed8.What preventative maintenance should be done frequently to diesel engine starting air receivers?A. Drain the accumulated moisture.B. Test the relief valves.C. Watch the temperature to prevent fluctuations in pressure.D. Clean the interior to remove oil and foreign matter.9.Immediately after any diesel engine is started, the engineer should check the ______.A. crankcase pressureB. lube oil pressureC. seawater pressureD. exhaust temperature 10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.In motor ship, ______is often used to recover some of the heat carried in the exhaust gases fromthe main engine.A. an diesel oil heaterB. a waste heat boilerC. a fresh water generatorD. a donkey boiler12.An exhaust gas bypass is installed on a waste heat boiler in order to ______.A. bypass exhaust gas at high loads to prevent excessive back pressureB. bypass a portion of the exhaust gas at peak loads for better efficiencyC. recycle exhaust gas to the turbochargerD. minimize moisture condensation in the boiler gas passages at low loads13.Prior to lighting off a cold automatically fired auxiliary boiler, you should ______.A. check and regulate the water levelB. close the air cock once fires are litC. blow down the gage glassD. assure protective steam flow14.Flame failure in an automatically fired auxiliary boiler can mostly result from a/an ______.A. incorrect electrode settingB. incorrect nozzle positionC. clogged fuel nozzleD. broken high tension lead15.Waterside scale in a fire-tube boiler may cause ______.A. increased heat transferB. fireside erosionC. high steam demandD. overheated tubes16.Which of the following will be the advantage of a centrifugal pump as compared with areciprocating pump? I. Its discharge is continuous; II. It has no internal valves; III. Uponaccidental closing of discharge valve, excessive pressure will not build upA. I, IIB. II, IIIC. I, II, IIID. II only17.Why are removable sleeves installed on centrifugal pump shafts?A. They make it easier to replace the pump shaft packing.B. They can be economically replaced as they wear out.C. They can be removed when it is necessary to lighten the weight of the pump.D. They increase the strength of the shaft.18.If one of the bilge system manifold valves does not properly seat, the ______.A. bilge well connected to that valve, plus the second bilge well being pumped will be completelyemptiedB. bilge system will lose vacuum and prevent the other bilges from being pumped outC. bilge well aft connected to that valve will siphon(虹吸) its contents to the forward bilge wellsD. discharge pressure will be too high.19.Which of the listed statements is correct concerning the starting of centrifugal pumps?A. They should always be started with the discharge valve closed.B. They should always be started with the discharge valve opened.C. A priming pump is always required to flood the impeller suction.D. They should always be started with the sealing line valves closed.20.The simplest method to use for determining if a centrifugal pump is operating as designed, is to______.A. closely observe the pump discharge temperatureB. close off the discharge valve, and watch for a rise in pressureC. momentarily close off the suction valve, and watch for a rise in pressureD. use a clamp on ammeter and compare the readings to past records21.Which of the following modes of heat transfer does NOT require any physical contact between awarmer and a cooler substance?A. RadiationB. ConductionC. Natural convectionD. Contact directly22. A re-heater in an air conditioning system functions to ______.A. control inlet air temperatureB. control inlet air volumeC. maintain relative humidity at 15%D. restore conditioned air temperature to a comfortable level23.In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effectof the 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 compressor24.Sludge may form in the lubricating oil crankcase of a reciprocating air conditioning compressoras a result of ______.A. wax precipitation in the lube oilB. contamination by dust, scale, or moistureC. refrigerant bubbles in the lube oilD. refrigerant reducing the lube oil viscosity25.Placing a filter on the ______of an oily water separator will “polish” the discharge butoverloading must be avoided.A. suction sideB. discharge sideC. by-pass pipeD. sampling pipe26.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. oil/water separatorC. incineratorD. distiller29.Most marine biological sewage treatment plants consist of all the following statements except______.A. aeration tanksB. settling tanksC. disinfection agent （消毒剂）D. anaerobic bacteria (厌氧菌)30.For a purifier changing to a gravity disc with smaller hole diameter will move the interfacetowards the ______.A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface31.The ______of the gravity disc is too big. It cause oil to flow through the water outlet. Wechanged the disc and no oil is found in the water outlet.A. gravityB. diameterC. circumferenceD. cylinder32.The advantages of flash type evaporators, as compared to submerged tube type evaporators,include ______.A. less internal corrosion because of lower brine densityB. higher temperature evaporation for lower salinity of the distillate producedC. less scale formation in a flash evaporatorD. less feed-water required for a flash evaporator33.Distilled water from an evaporator may be discharged into a drinking water 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 valve34.What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve35.In a radial piston pump, reversal and control of fluid flow are accomplished by moving the______.A. central valveB. radial plungerC. floating ringD. cylinder body36.In a general cargo crane, ______is fitted to lift the cargo load.A. the slewing motorB. the luffing motorC. the hoisting motorD. the fan moter37.______are used to handle anchors and chains.A. Cargo winchesB. Mooring winchesC. WindlassesD. Cargo hatches38.The clutch band of a constant tensioning mooring winch must be set up tight enough to drive thewinch drum and should slip only when ______.A. excessive loads are placed on the winchB. minimum pull is being exerted by the winchC. automatic operation of the winch is desiredD. wire is being retrieved at the maximum rate39.Dual (双的)electro-hydraulic steering units usually operate ______.A. with both pumps on line at the same time B．with one pump on standbyC．with the follow-up gear disconnected D．only when the rudder is moved amidships40.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.An electrical device which employs a stationary armature and a rotating electromagnetic field isused aboard ship as a ______.A. magnetic amplifierB. ship's service alternatorC. three-wire DC generatorD. saturable core reactor42.Current changing in direction and rising and falling in value is ___ .A. D.C.B. A.C. C. generatorD. fresh water generator43.Equal power factors on paralleled AC generators are maintained by an automatic ______.A. voltage regulatorB. reverse power relayC. reverse current relayD. governor control switch44.______shall be continuously powered and shall have an automatic changeover to a stand bypower supply in case of loss of normal power supply .A. Cooling systemB. Alarm systemC. The air conditioning installationD. The mooring equipment45.Switchboards may be of the dead-front type in which all live parts are installed behind ______andonly the operation handles and instruments are on the frontA. the capstanB. the collectorC. the panelsD. the surface46.The emergency generator or emergency battery is connected to ______on most ships.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards47.The primary function of an electric motor is to ______.A. develop torqueB. generate high voltagesC. produce a magnetic fieldD. generate high electrical resistance48.Electrical leads and insulation on a motor should be painted with ______.A. heat-resisting acrylicB. heat-resisting aluminumC. insulating varnishD. insulating white lead49. A circuit breaker and a fuse have a basic similarity in that they both ______.A. can be reset to energize the circuitB. should open the circuit when overloadedC. will burn out when an over current flow developsD. should short the circuit when overloaded50.Electric circuits are protected against short circuits by means of a/an _______.A. diode(二极管)B. amplifierC. circuit breakerD. capacitor51.The electrolyte in a lead-acid storage battery consists of distilled water and ______.A. hydrogen chlorideB. calcium chlorideC. sulfuric acidD. muriatic acid52.When under maneuvering conditions with the machinery being manually operated the control unitor console should be ___.A. automatically controlledB. off powerC. continuously mannedD. continuously unmanned53.______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. A tank which has been sealed for a long period of time can be dangerous because ______.A. steel surfaces consume oxygen by rustingB. sealed tanks usually form a vacuumC. moisture condenses in the tank, displacing the oxygenD. most tank coatings give off poisonous vapors in the presence of moisture56. A class 'C' fire is burning ______.A. diesel oilB. magnesiumC. dunnageD. electrical insulation57.To prevent the spread of fire by conduction, you should ______.A. close all openings to the areaB. remove combustibles from direct exposureC. cool the bulkheads around the fireD. shut off all electric power 58.The lengthening of a crack formed in the shell plating of a ship may be prevented by ______.A. welding brackets across both ends of the crackB. chipping out and slot welding the entire crackC. drilling a hole at each end of the crackD. cutting a square notch at each end of the crack59.After a fire has been extinguished in a closed space, personnel may safely enter the space when______.A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartment'sentranceB. a lifeline and explosion proof flash light are usedC. all smoke and toxic fumes are removed and an adequate oxygen supply is presentD. overhaul has been completed to remove any possible source of re-ignition60.While loading bunkers, you notice oil on the water near the vessel. What should you do first?A. Stop loadingB. Notify the harbor administration.C. Determine if the vessel is the source of the pollution.D. Start the main engine and put them in gear to disperse the spill.61.To anneal (退火)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.When a vessel is in dry-dock, the vessel's engineers should ______.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging63.The additional mark ______in the Classification Certificate for Machinery represents thatpersonnel are watching at engine assembly control station and monitoring all machinery andelectronic devices.A. BRCB. MCCC. AUT-0D. AUT-164.Which of the following operations must be entered on the Oil Record Book Part I?I. Routine discharge at sea of bilge water containing oil from the machinery spacesII. Bunkering of fuel oilA. I onlyB. II onlyC. both I and IID. neither I nor II65.Your ship’s certificates show that you did not do renewing work for certificate. All certificateshave expired a few days before. Thus, your ship is ______.It follows therefore that she will______.A. seaworthy / be fined in our portB. un-seaworthy/ be disassembled in our portC. seaworthy / be assembled in our portD. un-seaworthy / be detained in our port66.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a______.A. substandard shipB. standard shipC. over-standard shipD. reference ship67.When deciding the composition of the engineering watch, which may include _____appropriately,many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer68.The officer in charge of the engineering watch shall notify the chief engineer withoutdelay______.A. in any emergency or if in any doubt as to what decision or measures to takeB. in the event of any impending action in ma chinery spaces that may cause reduction in ship’sspeedC. when isolating and bypassing machinery to be worked onD. co-operating with any engineer in charge of maintenance work69.At an unsheltered anchorage the chief engineer 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 "moderate speed" was previously interpreted as meaning a speed which would enable avessel ______within half the range of visibility.A. stoppingB. being stoppedC. to stopD. to be stopped71.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.A. skimmersB. strawC. dispersantsD. sawdust72.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. efficiencyD. safety73.The Company should ensure that the master is fully ______with the Company's SMS.A. familiarB. understandC. conversationD. confused74.______means the level for which minimum appropriate protective security measures shall bemaintained at all times, threats and exchanging such information with appropriate Contracting Governments.A. Security level 1B. Security level 2C. Security level 3D. Security level 4二. 关联题（关联题题干下有4个小题，每小题4个选项）With many small package boilers, the automatic control sequence usually ensures that the boiler fire is initially ignited from a diesel oil supply, and changed over to the usual source when ignition is completed. With good management, to facilitate subsequent starting from cold, the fuel system of large boilers will have been flushed through with diesel oil when the boiler was on light duty immediately prior to being secured. When burning such diesel fuel it is essential for safety that only the correct (small) burner tip should be used. It should be kept in mind that if fire does not light, immediately shut off fuel and vent furnace.Complete ignition of fuel in the furnace is essential. The burner flame, the smoke indicator and the funnel should be frequently observed. With satisfactory combustion, the flame should appear in candescent （白热的）with an orange shade at the flame tip, and a faint brownish haze should show at the funnel. If on first ignition the flame is uncertain, badly shaped and separates from the primary swirler, momentary opening or closing of air register may correct. 75. Small package boilers will use _______ while being lit up.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil76. After large boilers being secured, the fuel in the feeding line will be____.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil77. If large boilers were not lit up, _____.A. feed water to normal levelB. stop fuel supply immediately and purge the furnaceC. light the boiler againD. reset the burner78. An indication for a good combustion is ______.A. white smokeB. brown haze in the funnelC. orange flame tipD. swirl oil spray三、中译英（共2题，请将答案写在答题纸上）79. 船舶加油期间，如发现船舶附近水面有油或发生溢油事故，都应立即停止加油作业。

轮机英语期末考试试题A卷

《轮机英语》A卷姓名：成绩：单项选择题（每题2分共100分）1.The diesel engine is similar to the gasoline engine in that _______.A.Both of them are ignited by compressed airB. Both of them are the forms of external combustion enginesC. Both of them have spark plugsD. The power is developed by the piston in the cylinder2.The ratio of th brake horsepower to the indicated by the ______.A.Thermal efficiencyB. Mechanical efficiencyC. Brake thermal efficiencyD. V olumetric efficiency3.The ignition quality, of diesel fuel oil is indicated by the ______.A.Specific gravityB. Cetane numberC. ViscosityD. Calorific value4.How are the pressure and temperature affected in a diesel engine cylinder during compression?A.Pressure and temperature decreaseB.Pressure and temperature increaseC.Pressure decreases and temperature increasesD.Pressure increases and temperature decreases5.An aluminium piston has lower inertia and higher coefficient of ____compared to that of cast ironA.ViscosityB. Twisting momentsC. InertiaD. Thermal expansion6.Each cylinder is closed at the top by a _____,made of a special heat-resistant steel.A.Cylinder linerB. Coupling flangeC. Cylinder coverD. Piston7.The amount of fuel delivered by a helical plunger type fuel injection pump is controlled by_______.A.Rotation of the pump plungerB. Rotation of the pump barrelC. Varying the pump supply pressureD. Varying the pump return pressure8.In a diesel engine lube oil system, which of the following parts should be lubricated first?A.Camshaft bearingB. Main bearingC. Piston crownsD. Cylinder9.Sacrificial zinc anodes are used on he saltwater side of diesel engine heat exchangers to______.A.Reduce electrolytic action on heat exchanger metalsB. Keep heat transfer surfaces shiny and cleanC. Prevent rapid accumulation of marine growthD. Provide a protective coating on heat exchanger surfaces10.In a turbocharger, inlet air velocity is in creased in the _____.A.Inlet nozzle ringB. Stationary diffuser passagesC. Compressor outlet voluteD. Rotating impeller vanes11.Diesel engine cylinder air start valve timing is controlled by ______.A.Engine operating speedB. An air manifoldC. A hydraulic distributorD. The air distributor12.If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will_______.A.Have a larger than normal dead bandB.Produce excessive speed response to a load changeC.Respond slowly to any change in engine loadD.Stabilize engine speed at the new governor setting13.A pyrometer is an instrument commonly used to measure_____.A.Cylinder pressureB. Flame intensityC. Exhaust gas temperatureD. Crankshaft axial alignment14.pump up the starting air reservoirs to their maximum pressure and _____the air reservoirs and airA.OpenB. closeC. DrainD. V ent15.In reducing engine speed to an efficient propeller speed by the use of reduction gears,______.A. Speed and torque are both reducedB. Speed is reduced and torque remains unchangedC. Speed is reduced and torque is increasedD. Speed is sometimes unchanged while torque is increased16.Which of the following statements concerning fire-tube boilers is correct?bustion gases flow through the tubesB. Flames impinge(撞击) on the tubeC. Combustion occurs in the tubesD. Water flows through the tubes17.The safety valves should be tested and adjusted when the boiler survey is _____.pletedB. Carried outC. CleanedD. Steamed18.When an auxiliary boiler is panting and emitting black smoke, you should ______.A.Increase the fuel oil supply pressureB. Decrease the fuel oilC. Decrease the fuel oil supply pressureD. Increase the air supply19.If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.A.High steam pressure in the boilerB. Abnormally high feed-water temperatureC. Abnormally high boiler water temperatureD. Steam demand exceeding feed pump capacity20.A vane pump belongs to______according to its working principle.A.Reciprocating pumpB. Positive displacement pumpC. Centrifugal pumpD. centripetal pump21.The packing installed in the pump stuffing box is lubricated by_______.A.Gravity and feed oil cupsB. Grease cupsC. Hand during installationD. Leakage through the stuffing box22.If the capacity of a centrifugal pump decreases gradually over a long period of time, you should______.A.Packing glandB. Mechanical sealsC. Lantern ringsD. Wearing rings23.Which of the listed conditions can lead to cavitation in a centrifugal pump?A.Vapor pockets formed in the suction flow steamB. Rough casing volute surfaces.C. Worn wearing ringsD. Heavy fluid m the flow stream24.In a compression refrigeration plant, the hot, high pressure refrigerant gas is cooled by the sea water and becomes liquid in the _____.pressorB. CondenserC. Throttle valveD. Evaproator25.The temperature at winch water vapor in the atmosphere begins to condense is called the ________.A.Dew point temperatureB. Condensation temperatureC. Psychometric temperatureD. Absolute humidity temperature26.In an air conditioning system, moisture is removed from the air by_____.A.FiltersB. SeparatorC. Ducted trapsD. Dehumidifiers27.Sludge may form in the crankcase of an air conditioning compressor as a result of ______.A.Bubbling refrigerantB. Lowered operating temperaturesC. Overheating and oxidationD. Reducing the cloud or floe point28.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. Decrease29.when started, a complete oily water separating unit is first filled____.the oily water mixture is _____ then pumped through the inlet pipe into the coarse separating compartment.A.With dirty waterB. With clean waterC. By oily waterD. By mixed water30.Which is the pollution prevention equipment?A.Booster pumpB. EvaporatorC. IncineratorD. Cooler31.The ___is used to bum oil sludgeA.ClarifierB. Oily water separatorC. IncineratorD. Distiller32.In sewage treatment, the term‘maceration’refers to the process of ______.A.Breaking up solid matter into fine particlesB.Precipitating non-decomposed waste in a collection tankC.Chemically adjusting the sewage pH to 7.0D.Eliminating bacterium coil from the sewage33.Which of the substances listed is satisfactorily removed from the fuel by a centrifugal oil purifier?A.Carbon particlesB. Lube oilC. GasolineD. Diesel fuel34.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 disk35.The process of boiling seawater in order to separate it into freshwater vapor and brine is usually defined as __________.A.DehydrationB. CondensationC. EvaporationD. Dissolution36.What type of valve is used to direct the flow of hydraulic is controlled by varying the position of the ______A.Relief valveB. Direction control valveC. Stop valveD. Pressure control valve37.The delivery rate of a variable stroke axial piston hydraulic pump is controlled by varying the position of the _____.A.Slide blockB. Tilting boxC. PintleD. Reaction ring38.The drive motor will have a brake arranged to fail-safe,i.e.it wild ~the load if power fail or_________machine is stopped.A.LiftB. PutC. TakeD. Hold39.On tank vessels with an electrically-driven capstan, the motor should be meggered periodically to test________.A.Insulation resistanceB. Eddy currentsB.C. Capacitance D. Armature reactance40.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 oil41.Purging air from a hydraulic system is necessary when ______.A.Adding small amounts of oil to the systemB.The system has been overheatedC.The system has been drained and then filled with new oilD.The system has been idle for a long period of time42.A direct current passing through a wire coiled around a soft iron core is the description of a simple________.A.Magnetic shieldB. ElectromagnetC. Piezoelectric deviceD. Electromagnetic domain43.The operation of _____two alternators requires the voltages to be equal and also in phase.A.ParallelingB. Series-mountingC. RunningD. Controlling44.The power factor of an AC generator operating singularly is determined by the __________.A.Connected loadB. Prime mover speedB.C. Field excitation D. Generator's rated voltage45.A generator is prevented from becoming motorized by the used of a/an _____.A.Over-speed tripB. Reverse power relayB.C. Back pressure trip D. Governor controls46.After a ship enters service it is _____for the main bus-bar to be made dead.uallyB. CommonlyC. ExceptionalD. Unavoidably47.A transformer in an electric circuit serves to______.A. Generate its own electrical powerB. Transform electrical energy into mechanical engergyC. Increase or decrease circuit voltage as requiredD. Convert AC or DC.48.The separate supplies are connected in either star or delta formation. The star formation is most commonly used and requires______slip-rings on the alternator.A.TwoB. ThreeC. FourD. Five49.Most conducting materials such as copper, aluminium, iron,nickel,and tungsten(钨)_____。

轮机英语题库 3873 a-z

第一章船舶动力装置1.“Stand by an engine”means _____√A．“prepare to stop the engine”B．“assemble an engine on its bedplate”C．“make an engine ready for starting”√D．“dismantle an engine”2. A _____ is the foundation of the engine, without the support of which theshaft alignment in particular, and engine structure as a whole, wouldinevitably be lost√A．FrameB．Bedplate √C．CylinderD．Liner3._____ are commonly used in mechanical-hydraulic governor to sense enginespeeds√A．BulbsB．BulksC．Flyweights √D．Flywheels4._____ are generally formed in the frame of the both in-line and Vee enginesto give maintenance access to the crankshaft main and connecting rod large end bearing√A．Doors √B．Aspirate gauzerC．CouplingD．Blind5._____ device is provided to prevent starting air from being admitted to thecylinder before the reversing is completed√A．An automaticB．A transmissionC．A self-regulatingD．An interlocking√6._____ is the removal of exhaust gases by blowing in fresh air√A．Gas exchangeB．ChargingC．Scavenging √D．Supercharging7._____ is used for cylinder and cylinder head, the salt water is used for coolingthe lubricating oil, the fresh water in the coolers and the charging air in theair cooler√A．The fuel oilB．The lube oilC．The sea waterD．The fresh water √8._____ may be the first possible cause which makes the engine to lose poweror slow down when it is running√A．Hot bearing √B．Starting valvesC．Unequal distribution of loadD．Excessive crankshaft clearance9._____ of an engine crankshaft can be detected by measuring deflections ofcrank webs for each unit of the engine√A．Misalignment √B．LengthC．StrengthD．Stresses10._____ of the A-frames there is a strong cast iron frame called the scavengingair box√A．At the top √B．At the bottomC．In the topD．In the bottom11._____ pistons have low inertia and high coefficient of thermal expansion√A．Cast ironB．Cast steelC．Forged steelD．Aluminum √12._____ should not undertake any task which will interfere with thesupervision duties relating to the main machinery and associated equipment √A．The watch keeping personnel √B．The chief engineerC．The person on a bunker bargeD．Any of the above13._____ the cylinder will contain a great weight of air and will be capable ofburning a great quantity of fuel√A．At the beginning of the compression stroke √B．At the beginning of the suction strokeC．At the end of the working strokeD．At the end of the exhaust stroke14._____ the supercharge pressure is, _____ power an engine develops√A．The higher/the more √B．Higher/moreC．Higher/littleD．The higher/the less15._____ is not properly set thus causing either advanced or retarded firing√A．A pistonB．A fuel injection pump √C．A feed water pumpD．A lube oil pump16._____ rods are not in proper condition so that too much fuel is supplied to thecorresponding cylinder√A．PistonB．SoundingC．Regulating √D．Connecting17._____ shows 1.2 meter and the specific gravity of the oil is 0.96√Accordingto the measuring scale, that makes 150 tons√A．The piston rodB．The push rodC．The sounding rod √D．The connecting rod18._____ allows for expansion and water make up in the water cooling system√A．A top tankB．A head tank √C．A head valveD．A drain tank19._____ at the end of the distribution pipe ensures that adequate pressure ismaintained by the pump√A．A relief valveB．An alarm √C．A pressure gaugeD．A non-maim valve20._____ is used for washing and drinking√A．The ballast systemB．The salt water systemC．The bilge systemD．The domestic system √21._____ provide the water to the pistons√A．Pneumatic pipesB．Hydraulic pipesC．Telescopic pipes √D．Operating gas pipes22._____ are fitted in the exhaust system and facilitate charge removal andscavenging in each cylinder√A．Diffusers √B．CompressorsC．Steam boilersD．Soot blowers23._____ are formed by abrasive particles entering the bearing and scoring theshaft√A．Grooves √B．RecessesC．RidgesD．Nips24._____ are mounted on and bolted to the bed-plate cross girders√A．The crankshaftB．The crankcaseC．The guide-waysD．The frames √25._____ is a precaution which contributes to avoiding trouble under normaloperating conditions√A．Constant inspection √B．Keeping constant loadC．Remaining constant temperatureD．varying speed26._____ is a source of power by which the diesel engine may operate√A．Water energyB．Electrical energyC．Chemical energyD．Heat energy √27._____ is arranged for cleaning the lubricating oil in the system and clean oilcan be provided from a storage tank√A．A filterB．A centrifuge √C．A distillerD．A generator28._____ is fully floating in both connecting rod small end and the piston skirt√A．The piston rodB．The cross head pinC．The gudgeon pin √D．The crank-pin29._____ is made of a boss with separated blades mounted into it√A．A variable pitch propeller √B．A variable pitch nutC．A fixed pitch parallelD．A fixed pitch screw30._____ is usually driven by the engine camshaft and supplies pilot air to thecylinder air start valve√A．An air receiverB．An operating valveC．An automatic valveD．An air distributor √31._____ neutralizes the acid conditions and_____ cleanses the rings andgrooves√A．The detergency/the alkalinityB．The alkalinity/the detergency √C．The inhabitant/the waterD．The additives/the distilled water32._____ or air venting arrangement is fitted to the fuel supply passage√A．An air pumpB．A compressorC．A fuel pumpD．A priming √33._____ providing lubricating films, oil used in marine diesel engines have toremove heat from oil cooled piston√A．Except forB．BesideC．ExceptD．In addition to √34._____ the engines, the diesel engine is_____ used engine on board√A．Between/more commonlyB．Among/the most commonly √C．Between/not more commonlyD．Among/not the most commonly35._____ water is more expensive than fresh water, It has high specific heat andlow viscosity√A．Distilled √蒸馏B．DistillingC．BoilingD．Boiled36._____ for the camshaft gear train is taken from a spur gear which for a sixcylinder engine is at the coupling end√A．The driven gearB．The drive √C．The greaseD．The lubricating oil37._____ in what position the engine stops there will always be at least one of thecylinders with its starting air valve open to admit compressed air to start the engine√A．BecauseB．Owing toC．ForD．No matter √38._____ is secured by means of side-chock bolts and end-chock bolts√A．The bedplate √B．The columnC．The main bearingD．The double bottom39._____ usually helps to induce air movement to assist combustion√A．Cylinder coverB．Main bearingC．The exhaust valveD．The piston movement √40._____ may have two emergency source of power, thus requiring twoemergency switchboards√A．Large passenger vessels √B．General cargo shipsC．Container shipsD．Oil tankers41._____ supplies pilot air to control the cylinder air start valves√A．An air compressorB．An indicator cockC．An air distributor √D．A safety valve42._____ clearances in the main or crank pin bearings will sometimes beindicated by loss of pressure in the lubricating system before any bearing knock is heard√A．Too largerB．Too smallerC．ExcessD．Excessive √43.A cast steel strong back is fitted in way of the combustion space to helpabsorb _____√A．flame temperatureB．fuel oilC．air movementD．gas forces √44.A charge of fresh air is drawn into the engine cylinder and then _____ by themoving piston_____ very high pressure√A．pressed/toB．pressurized/withC．pushed/inD．compressed/to √45.A diesel engine is similar to a gasoline engine except that the former has no_____√A．cross-headB．cylinderC．connecting rodD．spark plug √46.A diesel engines crankcase oil level is found to be too high, You shouldsuspect that _____√A．the engine was over filledB．there might be a fuel leakC．there might be a water leakD．all of the above √47.A distance piece, with ground faces, known as a compression plate, may beinterposed between the rod and the beating housing, its thickness beingchosen to ensure the correct _____√A．compression pressureB．compression testC．compression ratio √D．compression clearance48.A distance piece, with ground faces, may be interposed between the rod andthe bearing housing, its thickness being chosen to ensure the correct _____√A．expansion ratioB．pressure ratioC．compression ratio √D．clearance ratio49.A gudgeon pin in a trunk piston may be free to float and rotate, with _____ tolimit axial movement√A．split pinsB．crankpinsC．dipsticksD．circlips √开口卡簧50.A heater in the circuit facilitates warming of the engine prior to ____ bycirculating hot water√A．starting √B．stoppingC．to startD．to stop51.A high temperature alarm or _____ which will melt is used to guard againstthe explosion of compressor air pipelines√A．a flame trapB．a relief valveC．a fusible plug √D．a bursting cap52.A level gauge for a tank is to _____√A．give the pressureB．give the contents √C．give the shape of the tankD．give the accuracy level53.A lubricant often has to perform many duties in any situation, in addition toits fundamental job of_____√A．resisting oxidizationB．reducing friction √减少摩擦C．promoting moving speedD．developing inertia54.A main bearing consists of two shells which are secured by means of studsand _____√A．tie rodsB．through boltsC．lead wiresD．bearing caps √55.A number of cylinder liners are enclosed in one cast iron casing to form a_____√A．cylinder coverB．cylinder block √C．cylinder frameD．bed-plate56.A reduction in load on a diesel engine results in _____ of speed of thecrankshaft√A．a reductionB．an increase √增加C．an outingD．a downwards57.A separate piston cooling system is used _____ any contamination frompiston cooling glands to the piston cooling system only√A．to helpB．to limit √限制C．to protectD．to remove58.A separate piston cooling system is used to limit any contamination _____piston cooling glands_____ the piston cooling system only√A．between, toB．either, orC．from, to √D．neither, nor59.A variable pitch propeller is made _____ a boss with separate bladesmounted into it√A．ofB．up of √C．fromD．out60.A: Please tell me the specifications and quantityB: _____√A．Pump diesel oil firstB．300 tons of 180 cst fuel oil √C．The figure is all rightD．OK, I’ll sign it61.About half an hour before the engine is required, cooling water at _____must be circulated√A．more than the working temperatureB．less than the working temperatureC．the working temperature √D．the same as the surrounding temperature62.According to the way the energy of the exhaust gases is utilized,pressure-charging can be divided into two main systems, namely, theconstant-pressure system and _____√A．the pulse-phase systemB．the pulse Doppler systemC．the pulse system √D．the pulse interval63.Acid solution________ in the system can be tested from time to time byputting some on to a piece of lime√A．strength √浓度B．denseC．percentageD．velocity64.Additives _____ protective layers on metal surfaces guarding them againstcorrosion√A．damageB．form √C．dissolveD．contaminate65.Administrations should bear in mind the significance of _____ in maintainingsafety of life and property at sea and in preventing marine pollution√A．advanced nautical equipmentB．advanced performance main enginesC．emergency equipmentD．communication and language skills √66.After ensuring that the _____ is correct the bearing clearance should bechecked√A．napB．gapC．nip √D．deflection67.After fitting back in place the gear wheels, dont forget _____ them√A．to grease √涂油B．greasingC．oilingD．lubricating68.After passing through the turbine the exhaust gas is conducted out into the_____√A．intercoolerB．compressorC．cylinderD．open air √69.After the engine is warned, we should_____ the turning gear before startingup the engine√A．take inB．put inC．take out √D．put up70.All the rings are slightly rounded on their external top and bottom edges tokeep the oil film on the cylinder liner during _____ for new piston rings√A．the running-in period √磨合期B．the running processC．gas exchange processD．the boiler firing71.All three systems have the ports _____ to swirl the incoming air and direct itin the appropriate path√A．angledB．roundedC．being angledD．being rounded √72.Although the crankshafts of medium diesel engines appear to be robust, theyrely on the support of _____ to develop their full strength√A．the piston rodsB．the crank throwsC．the thrust bearingsD．the main bearings √73.Aluminum pistons have _____ coefficient of thermal expansion comparedwith those of cast iron√A．higher √B．lowerC．the sameD．none of the above74.An increase in load on a diesel engine results in _____ of speed of thecrankshaft√A．a reduction √减少B．an increaseC．an outingD．a downwards75.An interlock in the remote operating valve line stops the valve _____ whenthe engine turning gear is engaged√A．to openB．opening √C．openD．opened76.An overspeed safety device is usually fitted to a generator engine for _____ inthe event of overspeed√A．cutting power off the engine √B．increasing the fuel pump settingC．braking the crankshaftD．stabilizing the ship speed77.As a heat engine, _____ energy is the source of power by which the dieselengine can be operated√A．electricB．heat √C．mechanicalD．exhaust78.As for a diesel engine, lack of combustion air may be due to _____√A．fouling turbine √涡轮故障B．fuel pump faultsC．lubrication failureD．excessive cooling79.As the plunger moves up, the ports are closed and the fuel _____ anddelivered to the injector nozzle at very high pressure√A．being compressedB．to be pumped upC．is pressurized √D．are built up80.Be sure to make the engine turn by _____ before starting and after stopping√A．steering gearB．turning gear √C．steering wheelD．turning cycle81.Bearing knocks are likely to occur from _____√A．less clearanceB．dirty lube oilC．overloadD．bearing wear √82.Before "stand-by" is rung on the engine telegraph, it is usual to give the mainengine _____ ahead and astern√A．a brief trial with turning gearB．a brief trial on power √C．a long trial by steering gearD．one minutes trial with windlass83.Before pumping up the crankcase oil, _____ should be worked by hand tominimize corrosive action on the liners√A．the indicatorsB．the starting valvesC．the cylinder lubricators √D．the turning gear84.Before replacing a piston you should check that all rings are _____√A．free √自由B．fastenedC．brokenD．stuck85.Before replacing a piston you should check the rings to see that all clearancesand gaps are _____ the permissible tolerances√A．aboveB．atC．overD．within √86.Before replacing a piston you should check the rings to see that all clearancesand gaps are within the permissible _____√A．deflectionB．discrepancyC．errorD．tolerance √误差87.Before starting the engine the air bottle should be _____√A．pumped up √B．loadedC．dischargedD．opened88.Blow-off of the relief valves of the engines cylinders may be caused by _____√A．too low leadB．water in fuelC．too tight springD．leakage √泄漏89.Blow-off of the relief valves of the main cylinders during operation indicates_____√A．the cylinder cover is crackedB．the injector holes is cloggedC．the cams are not properly set √D．fuel pump is leaking90.Bridge gauge can be used to measure _____ of a diesel engine√A．diameters of journals √轴颈直径B．deflections of crankwebsC．diameters of crankpinsD．none of the above91.Care and cleanliness are required when installing diesel fuel filters _____√A．to prevent the fuel system from becoming air-houndB．to prevent the fuel system becoming clogged with dirty particlesC．both of the above √D．to prevent the lubricating oil from leaking out of the filter element92.Cast iron carrier rings, _____ machined grooves, are provided for all thepistons√A．caulked into √B．caulking intoC．pressed intoD．screwed into93.Charging is the filling of the engine cylinder with a supply or charge of freshair _____ compression√A．to needB．ready for √准备就绪C．want toD．going to be94.Charging-air pressure increases if there is incorrect combustion and drop inthe _____ of the diesel engine√A．machine efficiencyB．machinery efficiencyC．mechanical efficiency √机械效率D．mechanics efficiency95.Constant cooling the various components of diesel engine has a number offunctions except for _____√A．good lubricationB．low thermal stressC．good mechanical propertiesD．acid corrosion √酸腐蚀96.Cooling enables the engine metals _____ their mechanical properties√A．to retain √保留B．to remainC．to maintenanceD．to have97.Cooling of engines is achieved by _____ a cooling liquid around internalpassages within the engine√A．flowedB．flowingC．mixingD．circulating √循环98.Cooling of engines is achieved by circulating a cooling liquid around internal_____ within the engine√A．airB．passages √C．pipesD．means99.Cracks in cylinder and cylinder covers may _____ from unequal heating√A．makeB．causeC．result √导致D．produce100.Cracks in the cylinders and cylinder covers may _____ unequal heating √A．result from √B．result inC．give outD．given from101.Cracks in the cylinders and cylinder covers may result from _____√A．low speedB．unequal heating √不均匀受热C．less lubricatingD．low charge air pressure102.Crankshafts of medium speed engines are _____ from a single piece of steel√A．unusually solid weldedB．never be solid forgedC．almost invariably solid forged √D．almost invariably be welded103.Cross scavenging requires the fitting of _____ to prevent air or exhaust gas escape when the piston is at the top of the stroke√A．a exhaust valveB．a piston skirt √活塞裙C．a piston crownD．an air suction valve104.Cylinder liner cooling is often referred to as _____√A．piston coolingB．sleeve coolingC．central coolingD．jacket cooling √105.Cylinders of marine diesel engines are normally cooled by _____√A．sea waterB．fine mineral oilC．sanitary waterD．fresh water √106.Diesel engines are started by supplying _____ into the cylinders in the appropriate sequence for the required direction√A．cooling waterB．compressing airC．compressed air √D．cylinder oil107.Diesel engines are started by supplying _____ into the cylinders in the appropriate sequence for the required direction√A．fuel oilB．diesel oilC．compressed air √D．jacket water108.Diesel oil may be used to cool _____ of a diesel engine√A．cylindersB．exhaust valvesC．pistonsD．fuel valves √109.Dirt in the fuel oil system of a diesel engine can cause _____√A．clogged filters √堵塞滤器B．poor combustionC．overloading of the dieselD．shock of fuel lines110.Dirty oil must be _____ before being used again√A．mixed with clean oilB．purified √净化C．heatedD．strained111.Doors are generally formed in the _____ of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing√A．bedplatesB．columns √C．cylinder blocksD．safety caps112.Due to _____ action of pistons some relative motion between parts in contact in the coolant supply and return system must occur√A．reciprocating √往复B．rotatingC．runningD．removing113.During _____, the starting air valves should be closed to prevent the engine from turning√A．overhaul √大修B．runningC．blowing downD．All of the above are correct114.During repair, lubrication lines and orifices must be _____√A．taken awayB．engagedC．connectedD．sealed off √把……封锁起来115.During the inspection, the starting air valves should be closed _____ the engine from turning√A．to increaseB．to speed upC．to prevent √防止D．to reduce116.During the suction stroke, the piston is moving _____√A．inwardsB．outwardsC．downwards √D．upwards117.During working, when the piston is near the _____, the air ignites the fine spray of fuel√A．TDC √B．DTCC．BDCD．BCD118.Each crank is made up of two crank webs joined by a common _____ to which the bottom end bearing is fitted√A．throwB．crankshaftC．crankpin √曲柄销D．crosshead119.Each cylinder has one starting valve which is usually opened by air pressure and closed by _____√A．nuts and boltsB．new jointsC．spring force √弹簧力D．sealing rings120.Each cylinder is closed at the top by a _____, made of a special heat-resistant steel√A．cylinder linerB．coupling flangeC．cylinder cover √D．piston crown121.Each cylinder liner on the marine medium speed engines _____√A．is usually cooled by sea waterB．can be replaced when worn out √磨损可以更换C．is in direct contact with the water in the bore of the cylinderD．can t expand when heated122.Each journal and pin should be examined for _____ and grooving√A．bridgesB．recessesC．rearsD．ridging √123.Each piston stuffing box is provided with two sealing rings and three_____√A．packingsB．piston ringsC．distributor ringsD．scraper rings √刮油环124.Either a low injection pressure or a leakage of piston rings is able to lead _____√A．a high exhaust temperatureB．a high smoky exhaust √C．a high outputD．a high compression125.Emulsion oils and sodium nitrite are both approved additives, but the latter cannot be used if any pipes are _____ or if any soldered joints exit√A．chromedB．weldedC．galvanized √电镀D．bolted126.Emulsion oils and sodium nitrite are both approved additives, but _____ cannot be used if any pipes are galvanized or if soldered joints exist√A．the latter √B．latterC．formerD．the former127.Energy losses due to _____ occur in every machine√A．speedB．friction √摩擦C．impactD．atmosphere128.Engage the flywheel with the _____√A．turning gear √B．motorC．driving gearD．driven gear129.Engine _____ refers to the relative time of position of crank, at which each operation during the cycle is commenced and is completed√A．timing √B．deviationC．firing orderD．phase130.Engine fuel pump index is _____√A．the viscosity indexB．the fuel oil contentsC．the starting speedD．the reading at the rack √读齿数131.Excessive clearances in the main or crank-pin bearings will sometimes be indicated by _____ before any bearing knock is heard√A．loss of flow in the fuel systemB．loss of pressure in the air systemC．loss of flow in the lubricating systemD．loss of pressure in the lubricating system √132.Exhaust temperature increases in all cylinders, the possible cause may be_____(1) increased scavenging air temperature, (2) air in fuel pumps and fuel valves, (3) fouling of air and gas passages√A．(1)+(2)B．(1)+(3) √C．(2)+(3)D．(1)+(2)+(3)133.Expansion tank should be used to remove _____ from cooling water√A．scaleB．sludgeC．chemicalsD．air √134.Factor influencing the position of the interface between the liquid seal and the oil in a purifier is _____√A．throughputB．back pressureC．gravity discD．None of the above is wrong √135.Failure of fuel injection is usually due to trouble in the _____√A．exhaust valvesB．mechanical lubricatorsC．cooling water pumpsD．fuel injection pumps √136.Fix the fuel injector into _____ after repair√A．the cylinder linerB．the cylinder cover √C．the cylinder jacketD．the piston137.For a diesel engine, when the piston is at the _____, the clearance volume is the largest√A．TDCB．DTCC．BDC √D．DBC138.For a generator engine, after passing through the turbine the exhaust gas may be conducted out into the _____√A．intercoolerB．open air √C．oil fired boilerD．B and C139.For a main diesel engine the lube oil in the bearings is drawn from _____, usually located in the bedplate√A．a gravity tankB．a sump √油底壳C．a vesselD．a bottle140.For an ordinary four-stroke diesel engine the exhaust valves close _____√A．after TDC √B．before TDCC．after BDCD．before BDC141.For an ordinary four-stroke engine the exhaust valves open _____√A．after TDCB．before TDCC．after BDCD．before BDC √142.For an ordinary four-stroke engine the inlet valves open _____√A．after TDCB．before TDC √C．after BDCD．before BDC143.For an ordinary modem marine four-stroke engine the inlet valves close _____√A．after TDCB．before TDCC．after BDC √D．before BDC144.For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through the _____√A．cylinder casingB．cylinder boreC．crankcase door √D．aperture in the cylinder block145.For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through _____√A．the cylinder coverB．the bottom of bed-plateC．the sumpD．the crankcase door √146.Four strokes consist of suction, compression, _____ and exhaust stroke√A．combustion √B．condensationC．chargingD．evaporation147.Fresh water is used for the cooling of cylinder jackets and _____ of the marine diesel engine√A．cylinder covers √B．lubricating spaceC．crossheadD．exhaust manifold148.Fuel has been injected but ignition fails The possible cause may be _____√A．leaky exhaust valveB．increased scavenging air temperatureC．engine cylinders not scavenged sufficientlyD．water in the fuel oil √油含水149.Fuel injected into a diesel engines cylinder is ignited by _____√A．the heat compressed fuel/air mixture in the cylinder √B．the fuel igniterC．the fuel injectorD．the fuel pump150.Fuel injection uses the jet pump system and a Woodward type hydraulic _____ is used to control engine speed√A．controllerB．governor √C．instrumentD．apparatus151.Fuel injection valves should be taken out, cleaned, and lifting checked every _____√A．two to four monthsB．four to six months √C．six to eight monthsD．year152.Fuel is delivered into the combustion space by _____√A．a cooling systemB．a lubricating systemC．an electric systemD．an injection system √153.Fuel is not supplied to the corresponding cylinder due to a failure of _____√A．the motorB．the fresh water generatorC．the governorD．the fuel pump √154.Fuel is not supplied to the corresponding cylinders due to _____√A．a failure of the motorB．a failure of lubricatorC．a failure of cylinderD．a failure of fuel pump √155.Fuel oil is pumped by means of _____ from the bunker tanks√A．a transfer pump √输送泵B．a bilge pumpC．a service pumpD．a vacuum pump156.Fuel oil is thought to be one of the main factors _____ the operation and maintenance of an engine√A．have nothing to do withB．having nothing to do with。

轮机英语听力与会话(新)

P35 Task 3 Topicdiesel engine and gasline engineinternal combustion engine Diesel:compressed-burning Gasoline: igniting-burningP43 Task 3 Topicfuel oil system1)Structure:double bottom tanks , heaters , tanks , filters , and so on 2)Function:settling tank---separate the solid from the oil , service tank---store the oil for using3)Safety:viscosity regulator , pressure regulating valveP61 Task 3 Topic 1lube oil system1)Reasons:form oil film , reduce friction and wear2)Functions:provide films , remove heat , neutralize acidic3)Management:centrifuged continuously , heating and settling , analysis every three monthsP73 Task 21.black smoke--incompleted combustion2.yellow smoke--highly sulphur content of fuel oil3.blue smoke--lube oil leak to fuel oil / combustion chamber4.white smoke--highly water content of fuel oilP76 Task 1 Stand by the engine1.warm up the M/E2.scavenge3.turn the M/E4.starting air system preparing5.start the generator (supply electric)6.start pumps---lube oil system , cooling water system , fuel oil system (preparing)7.test the M/E8.test the steering gearP77 Task 2-2 things to check1)parameters---temperature , pressure , revolution , power2)the condition of the systems3)the condition of the parts---sound , smokeP77 Task 3 Topic 2monitoring1)Things:(1)parameters---temperature , pressure , revolution , power(2)the condition of the systems(3)the condition of the parts---sound , smoke2)Points:normal / abnormalP86 Task 2Part A--turbochargerThe turbocharger has an exhaust gas driven turbine and an air compressor on opposite ends of a single shaft.The incoming air is compressed by the compressor,and then pass through a cooler before it travels to scavenging space.P901. mechanism troubles , working condition problemvent cock 放气旋塞indicator diagram 示功图drain cock 放残阀burnt out 烧蚀fire in scavenging box 扫气箱着火hydraulic test 液压试验break-in 磨合assembly 组装disassembly 拆卸overhaul 大修（船厂坞修）Rotterdam 鹿特丹港（荷兰，曾经世界第一大港口）daily fuel consumption 燃油日消耗cylinder liner 缸套（内壁）cylinder jacket 缸套（外壁）P94 Task 2communication--trouble shooting rm the bridge, slow down and stop the M/E, explain the troubles 2. treat the trouble(check and repair)3. Inform the bridge, restart the M/EP94 Task 3Topic--fuel injection failure1.Causes:trouble in the fuel injection pumps,fuel lines are not cleared of air,fuel oil pressure too low,fuel too cold,troubles of maneuvering gear, cylinder not firing2.Measures:check and repair/replace the injector,blow the pipe with air,regulate the oil pressure and temperature,treat the trouble of maneuveringLesson 12P98 Warming-upM/E control system consist: telegraph , control gear , meters , switchs , control panel(alarms)P98 Readingtelegraph orders（车钟令）:dead slow ahead, slow ahead, half ahead, full aheadstop, stand-by, finished with engine dead slow astern, slow astern, half astern, full asternloop 控制回路closed loop control system 闭环控制系统open loop control system 开环控制系统detector 传感器comparator 比较器regulator 调节器automatic changeover switch 自动转换开关ship’s course 船舶的航向components=partscirculating lube oil tank 滑油循环柜output 输出input 输入feedback 反馈electrical braking 电气制动（刹车）regenerative braking再生（反馈）制动surge（信号）波动lift out the piston 吊缸P102 Topicremote control system of M/E 主机遥控系统1.manual operation2.stand beside or in front of M/E 机旁操作3.engine control room4.bridge control and engine control room5.UMS=unattended machinery space 无人机舱Lesson 13P105 Task 21.generate the steam2.steam drum 汽筒water drum 水筒combustion chamber 燃烧室furnace 炉膛burner 燃烧器fresh air intake 进气口inspection port 检查口mountings 附件safety valve 安全阀---overpressure 超压lifting pressure 开启压力P105 Readingsteam ship 蒸汽机船motor ship 内燃机船exhaust gas boiler 废气锅炉（主锅炉main boiler）oil boiler 燃油锅炉（辅锅炉donkey boiler）water-tube boiler 水管锅炉fire-tube boiler 火管锅炉D-type boiler D型锅炉P109 Task 3 Topic 1water-tube boiler1) Function: generate the steam2) Components: P105-Fig.13-13) Maintenance: P109-Task11、produce electricity2、clean、dry、regularly check linesparallel 并车phase 相位in phase 同相alternator 交流发动机compressor—reciprocating condenser—shell and tube type evaporatorexpansion valvecritical temperature临界温度double refrigerant liquid outletprior to在...前面solenoid valve电磁阀central control room=engine control room集控室brine盐水/海水（sea water）chilled water冷水（cooling water冷却水）mechanical，pneumatic，electrical，hydraulicfunction---mal function故障（trouble、problem、fault、wrong）P143 Part Bdischarge the sludge immediately shorten the interval of the sludge dischargedP156 Part 11. The incinerator is used to burning the oil sludge , solid waste.2. remove ashes interval , flue gas temperaturesewage treatment plantSOPEP：shipboard oil pollution emergency plantrim 纵倾list 横倾draught 吃水stability 稳性stress 重心mooring winch 绞缆机capstan 绞盘barrel 卷缆筒windlass 锚机lanching appliance 放艇设备crane 起货机（克令吊）boom/derrick 吊杆watertight door 水密门hatch cover 舱口盖stabilizer 减摇鳍bow thruster 艏侧推器fire pump , emergency fire pumpfire mains 消防总管hydrant 消火栓international shore connection 国际通岸接头extinguisher—portable/fixedCO2 systemfireman’s outfitelectrocution 触电（生命危险）blackout 全船失电P205 Task 2 Topic 2 control unit of the steering gearETA--estimated time arrival congested waters 狭窄水域disassemble 拆卸rated speed 额定速度rated power 额定功率break-in condition 磨合情况alternator 交流发电机P2461. The second engineer and the second officer.2. before departure, on the phone.3. Yes, they do. NO problem.4. Yes, they do.5. No, it does not.6. The gangway must be lifted.P2471.The telegraph is a device used to convey orders between the bridge and the engine room.2.Orders like: ….P253withdraw = removeP260 Task 31)If the trouble is not serious,the duty engineer should keep watch also.2)If the trouble is serious,the duty engineer should take part in the repair work.P260 Reading2. We must transfer the fuel to the tank.power supply firstly: navigational equipment、steering gear、pumps for the main enginesubstitute replaceA--solidB--liquidC--gas and electricity D--metalP2771. list collision2. human factor：improper operation3. find the location、check all engines、check the oil tanksReadingIMO—international maritime organization 国际海事组织SMCP—standard marine communication phrases 标准海事通信用语1. collision2. damaged3. collided4. bow5. extent6. ballast7. stern8. hold9. plugging10. foreknock into=run into=collide 碰撞aground=gounding 搁浅hold=cargo tank/hold 货仓operational=functional 功能spare=standby 备用的abandon ship 弃船=leavelist 横倾trim 纵倾muster list 应变部署表master=captain 船长general service pump=fire fighting pump----discharge sea water overboardP295 Task 1muster list 应变部署表1.summoning 集合2.report and prepare 报告和准备3.check dress 检查着装4.lifejacket 救生衣5.lifeboat 救生艇P296 Task 21.every month2.six short、a long3.集合、报告、检查、放艇4.stop engines、close fuel outlet valves、leave engine room as the last oneISM---International Safety Management Code 国际安全管理规则1.goggles 护目镜2.helmet 安全帽3.ear plug 耳塞4.working boots 防滑靴5.gloves 手套6.protective clothing 防护服7.face mask 面罩8.harness 护具9.breathing apparatus 呼吸装置injury、slip、boots、secure、strain、lift、burns、spill、chemical、cuts、guards、sparks、gogglesRFQ—request for quotingP3201.checklist2.flanges 法兰3.scuppers4.rate5.signals6.preparation7.sounding8.connections9.barge10.capacityP322 Passage 11. The fuel is stored in bunker/oil tanks.2. Supply bunkers for ship usually is bunker/oil barge.3. Depend on the size of the ship and speed designed to voyage.4. from 150 cubic meters to 3500 cubic metersa vehicle , floatsmassive , produce powerwonder , capacity , consumptionPassage 2processed , evaluatedsent for a lab analysis ,the required standardPassage 31. The most important aspect is checklist. SMS/ISMeliminating human negligence and operation errors2. C/E3. take sounding1. scupper plugs2. forward3. analysis4. diesel oil5. rate6. trims 吃水差7. sounding8. samples9. hose10. temperaturenot exceed=no more thanWarming-up：renewed=replace untightened refitted connectedsealed uplifted outcleanedblownreadjusted realigned 重新对中Task 1：shore connections bilgesspare partsshore power Soundgas freeTestsewagecancel 取消alteration 改变withdraw=dismantal renew=replaceTask 21. items、requirements、some spare parts、time2. shore power3. oil、liquid cargo、chemical/dangerous cargo4. shipyard5. working wear….6. equipment、alarm、fire fighting system…..P348 Task 1：renewdismantlingabnormaltailshaftelectric circuits securedisolatedpressure relieved chain blockwindlassout of stock 没有库存instead=substitute 替代P351 Passage 2：1. The graving dock consist of a large basin with a gate that can be closed watertight.2. …..3. The basin is floated up , bring the ship above the water level , this is called a floating dock.Lesson 43Warming-up:1. supply compressed air 、control the ship’s course 、purify the oily water 、supply the steam 、mooring 、treat the garbageP357 Task 1：drawings installation trialsalarmlists certificates electrical explain functionspotLesson 44P367 Task 1：damage survey applicationverifyregisteredrules and regulations descriptionsurvey report dockingspecialvalidremtall=recast 重铸。

轮机英语大证考试真题48期

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

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

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

轮机英语听力与会话四版问答题

第一章公共用语1.How many countries have you ever been to?I've been to many countries, such as Singapore, Japan, Australia and so on.2. How long have you worked on board?For 5 years.2. Which certificate do you have now?A fourth engineer’s certificate now.3. What is your marital status? How many departments are there on board?I'm single./ I am married.There are three departments: engine department, deck department and service department.4. How many people are there in your family? Are you married?There are three people in my family. No, I'm still single. / Yes, I am married.5,How many countries have you been to?I have been to four countries.6. Which classification society is your ship registered with?CCS.7.Please tell me the minimum safe oxygen percentage for the safety of the workers in an enclosed space.18%.8. When did you begin to work on board? What kind of ship have you worked on?In 2003. Container ship.9. Can you tell me what is the most important thing for a seafarer?Safety.10.What kinds of main engine and generator engine have you worked on?Large slow speed crosshead type marine diesel engine and high speed four stroke engine for A.C generator.11. Have you worked any ship that caused damage in critical equipment?No, I haven’t. / Yes, I have worked on a bulk carrier that the main engine had damaged.12. How do you make your maintenance schedules?It’s based on ship’s “Planned Maintenance System” (PMS) and the machinery running hours records. 13. Could you list international conventions concerning maritime shipping?STCW, SOLAS, MARPOL and so on.14. Could you tell the usages of the STCW convention?To provide international standards of training, certification, and watch-keeping for seafarers.15. What is the purpose of classification society? Could you list some of them?To evaluate the condition of the ship, the management system of marine company and the ships.Lloyd’s, ABS, CCS.16. Could your list different kinds of ship’s surveys?Yes. Annual survey, special survey, damage survey, docking surveys and so on.17. What does UMS stand for? Have you served UMS?Unattended Machinery Space. Yes, I have served UMS.18. Have you ever experienced PSC inspection? Where and when was your last inspection?Yes, I have. It was in Hamburg last month.19.What should be paid attention to in the overhaul of a cylinder?Every operation must be complied with the precaution measures regulated in the SMS. 20.Before entering an enclosed space such as ballast tank, what action will you take? To vent the space and check the oxygen content.21.Which certificate do you have now?I have the second engineer’s certificate.第二章机舱日常业务1. Please introduce one type of the main engine.The main engine is large bore two-stroke crosshead type with turbo- charging system. 2. Why is the two-stroke engine widely used as the main engine on board ship? Because of its long life, low cost and reliability.3.Please introduce three moving parts of marine main engine.Piston, crankshaft, connecting rod.4.Please introduce four fixing parts of marine main engine.Bedplate, cylinder block, scavenging air box and frame.5. What is the foundation of diesel engine?Bedplate.6. What are the function and feature of the tie rods?The function is to hold the bedplate, frames and cylinder block together.The feature is long and good tensioning strength.7. What is used for connecting the piston rod and connecting rod?Crosshead.8. What is hot work?Gas welding and electric welding.9. Please introduce fuel injection process of electronically controlled main engine.It can change the injection timing and injection pressure according to the load.10.Please introduce dual fuel technology (双燃料技术) of main engine.This kind of main engine can burn both natural gas and fuel oil.11.How to control fuel oil viscosity of main engine?By controlling the oil temperature.12. Please introduce two sub-systems（子系统）of fuel oil system.Fuel supply and fuel injection system.13.Please speak out the function of the fuel oil viscosity regulator.To control the viscosity of fuel oil.14.How does the fuel oil viscosity regulator work?By regulating the fuel oil's temperature.15.Please tell at least three composition of fuel oil.Sulphur, carbon, ash content.16.Please name at least three of main factors to select a fuel oil.Viscosity, gravity and flash point.17.When do you clean the fuel oil filters?When the pressure drop is excessive.18. How do you change diesel oil into fuel oil?Fuel oil heated to proper temperature and open the fuel oil valve.19. How do you change fuel oil into diesel oil?Shut the steam valve, decrease the fuel oil temperature, open diesel oil valve.20. What does VIT stand for?Variable injection timing.21. What’s the function of the fuel oil separator?To separate impurities and water from the fuel oil.22. How do you drain off air of the injection pump?By using vent screw.(放气螺钉)23 What are the two types of cooling system?The closed cooling system and the open cooling system.24. What’s the function of the head tank(高位水箱) in the cooling water system?Expansion and make-up of the water, air releasing and water treatment.25Please introduce the open cooling system.The seawater is in direct contact with the engine. But it is not found on diesel engine vessels now because seawater is somewhat corrosive.26.Please introduce the closed cooling system.In a closed cooling system, the fresh water is circulated through the engine, the engine jackets, the heat exchanger and the circulating pumps to form a continuous circuit which is not open to the atmosphere. 27. Please introduce the central cooling system.The central cooling system has only one large seawater circulated cooler. It cools a supply of fresh water which then circulates to other individual coolers.28. What’s the advantage of the central cooling water system?The corrosion problems are much reduced.29. What is the usual coolant used in the marine diesel engine?Fresh water.30. Why seawater is not used directly as a coolant in the marine diesel engine?Because it is corrosive.31. What’s the disadvantage of water-cooling piston?Cooling water leakage can pollute the lube oil.32. How do you heat the main engine?By circulating the cooling water which is heated to proper temperature.33. What’s the advantage of oil-cooling piston?Any leaks will not cause corrosive problem.34. What’s the function of the lubricating oil used in marine diesel engine?To provide lubricating film, remove heat, resist oxidation, neutralize acidic products of combustion, and so on.35.How do you clean the lube oil filters?By washing with diesel oil36. Why must the cylinder oil have alkalinity?To neutralize acidic condition.37.What's the function of the cylinder oil?Lubrication, sealing, cleaning and removing heat.38. How do you start the air compressor?Check lube oil and cooling water first, then open the drain cock, finally start the air compressor.39. What do you pay attention to when you stand by engine?Check various pressure and temperature, warm up the engine, turn the engine with turning gear and so on.40. Do you know the reasons why the engine does not start on air?Too low starting air pressure, incorrect timing of starting air valve, etc.41. What should you periodically do for the air reservoir?Drain oily water.42. What is the function of turning gear?To make the engine operate slowly for inspection.43. How do you grind the valve plate of air compressor?Grind it in the path of “8” shape44.What's the sequence of the four strokes?Suction, compression, expansion and exhaust.45. What is called a working cycle of a marine diesel engine?The operation between two fuel injections.46What’s the function of the governor?To regulate the speed of the main engine.47. What is the feature of the governor?It can automatically maintain the constant speed of the engine and regulate speed fluctuation.48. How do you operate the main engine in cold weather?Warm up the main engine gradually.49 Why is the air exchanging quality of four-stroke engine more than that of two-stroke engine? Because four–stroke engine has an enough overlap between inlet valve opening and exhaust valve closing.50. What is used for sealing between the crankcase and scavenging air box?Piston rod stuffing box.51. What's the function of gas exchange in diesel engine?Supplying fresh air and removing exhaust gas.52. What's the function of the supercharging in diesel engine?To increase output power.53. Do you know why the diesel engine exhausts black smoke?The combustion is not sufficient.54. Do you know why the diesel engine exhausts blue smoke?Because the lube oil is burnt due to blow-by.55. Do you know why the diesel engine exhausts yellow smoke?Too much sulphur in the fuel oil.56. Do you know why the diesel engine exhausts white smoke?The fuel oil contains too much water or cooling water leakage.57. How do you measure the clearance of the main bearings?By a feeler or lead wire(铅丝).58. How do you measure the crank deflection of the main engine?By crank deflection gauge.（拐档表）59. How do you decide to overhaul the main engine generally?According to specific working condition and requirement of instruction book.60What should be prepared before disassembly of cylinder for main engine/auxiliary engine? Special tools, draining off the residual oil and water.61. What does CPP stand for?Controllable Pitch Propeller.62. Why do you often carry out the water treatment for the boiler?Because the impurities form scale.63. What boiler is used on a motor ship at sea?Exhaust gas boiler.64. What boiler is used on a motor ship in port?Donkey boiler.65. What is the function of the soot-blower?To blow away soot and the products of combustion.66. What is used to connect a diesel engine and a generator?Coupling.67. What is the most common marine refrigeration?Compression refrigeration.68. Please introduce four components required for a compression refrigeration system. Compressor, condenser, evaporator and expansion valve.69. How do you fill Freon 22 into the refrigeration system?Through the special passage for Freon 22.70Why does the refrigerating compressor start and stop frequently?Lack of refrigerant, dirty or iced evaporator, leaky liquid line solenoid valve..71. What's the type of the freshwater generator?Multi-stage flash water generator72. What's the type of the fuel oil separator?Centrifugal.73. How do you clean the disc of an oil separator?With disc cleaner.74. What's the type of the oily water separator?Gravity, filtration and absorption.75. What's the function of the oily water separator?To prevent oil-pollution to the sea.76. What is the oil content limit when pumping out the bilge?15 PPM.77. What is the oil content limit when pumping out the bilge?15 PPM.78How do you manage sewage?Drop in sterilized medicine regularly. Keep the blower in constant working.定期投药,保持鼓风机连续工作。

三管轮考试48期轮机英语试卷及答案

三管轮考试48期轮机英语试卷及答案轮机英语第45期1.These acid residues must be prevented from entering the crankcase otherwise the lube oilwould be _______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 value4. 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 andfore motion is called ______A. wheelB. crankshaftC. running gear6. A clearly visible benefit of RT-flex engines is their ________operation at all ship speeds.Thisis achieved 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 disadvantageof _________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 fundamentaljob 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 improveengine operating 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 dieselengines 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 engineexhaust ______.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 finaldelivery pressure.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. Vapor 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 thefollowing conditions?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 oftemperature.A. RefrigerationB. Air conditioningC. VentilationD. Heating32. In a chilled water air conditioning unit using a reciprocating compressor, the refrigeratingeffect the 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 formwithin the film.A. evaporationB. condensationC. liquefiesD. vaporization34. The resistance to the movement of the globule in oily water mixture depends on its size andthe _________ of the fluid.A. pressureB. velocityC. gravityD. viscosity35. Because the flow rate of supply water pump is too large, oily water separator does not workwell. Which of the following is not the reason.?A. the monitoring equipment is out of orde rB. 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 followingis not correct?A. scavenging time should be more than 30 seconds before ignitingB. the oil temp erature 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 sewagetreatment plant.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 asa 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 the position 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 board ships.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 in the 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 firstly that ________.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 alternator does 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 alarm signals under emergency conditions?A. The generator and bus transfer sectionB. The 450 volt, 60 cycle, 3 phase busC. The 120 volt, 3 phase, 60 cycle busD. The 24 volt DC 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 bolt s59. Which of the electrical properties listed will always be the same for each component in a parallel circuit?A. ImpedanceB. CurrentC. ResistanceD. Voltage60. 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 ashor e 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 letterA. 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 the flag of a Party.A. servedB. servingC. surveyedD. surveying81. The officer in charge of the engineering _______ the watch to the relieving officer if there is reason 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 procedures should 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 the fire pump and supply deck water in _______ minute(s)A. 5B. 3C. 2D. 186. According to the ISM CODE, the “person”in the phrase “to designate a person or persons ashore having direct access to the highest lev el 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 against shipping, 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-downC. 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 liner④the 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 separator。

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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 commonly B. Among/the most commonly C. Between/not more commonly D. Among/ not the most commonly 2. The average pressure exerted on a piston during each power stroke is termed ______. A. indicated horsepower B. mean effective pressure C. exhaust back pressure D. compression pressure 3. The cetane number rates fuels for diesel engines according to its ______. A. antiknock characteristics B. ignition qualities C. rates of vaporization D. viscosity 4. The time between injection and ignition of the fuel is known as ______. A. turbulence lag B. after burning ratio C. pre-ignition lag D. ignition delay 5. ______ controls the fuel oil temperature in order to provide oil at the correct viscosity for combustion. A. The viscosity regulator B. The temperature controller C. The flow meter D. The pressure switch 6. Constant cooling the various components of diesel engine has a number of functions except for ______. A. good lubrication B. low thermal stress C. good mechanical properties D. acid corrosion 7. A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an ______. A. torque limiter B. over-speed trip C. over-speed governor D. load limit governor 8. Engine speeds at which resonance can occur are termed ______. A. maximum speeds B. full speeds C. sea speeds D. critical speeds 9. Prolonged operation of a diesel engine with a closed cooling water system at lower than normal designed operating temperatures can ______. A. increase power output B. decrease lube oil viscosity C. eliminate fuel knock D. cause sulfuric acid formation 10. ______ on a ship transmits power from the engine to the propeller. A. The automatic control system B. The speed regularly system C. The transmission system D. The compression air system 11. In a _____ boiler the hot gases from the furnace pass through the tubes while the water is on the outside. A. water-tube B. fire-tube C. exhaust gas D. composite 12. The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler ______. A.salinity is abnormally B.high steam demand is too high C.feed-water flow is low D.water level is abnormally low 13. The water in a steaming auxiliary boiler should be tested daily for ______. A. dissolved oxygen B. chlorides C. sludge D. dissolved nitrogen 14. Ignition failure in an automatically controlled auxiliary boiler could be caused by ______. A. carbon deposits on the flame scanner B. high fuel oil temperature C. low fuel oil viscosity D. high steam pressure 15. The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of ______. A. seawater contamination B. frequent surface blows C. dissolved oxygen de-aeration D. frequent bottom blows 16. Some pumps use packing as sealing gland. The gland should be ______. A. slack enough to allow slight leakage of fluid B. slightly chocked C. brought up tight so as not to allow any leakage D. fitted with a relief valve 17. A spur gear pump should be operated with the discharge valves ______. A. slightly opened B. throttled C. fully opened D. halfway opened 18. Compared to globe and angle valves, gate valves ______. A. are more suitable for throttling B. operate with little or no pressure drop when fully opened C. are more easily repaired D. cannot be used for service requiring infrequent operation 19. An increase in rotor clearances in a rotary pump will ______. A. increase discharge pressure B. decrease pump capacity C. decrease pump cavitation D. decrease reaction ring clearance 20. The usual symptoms of cavitation in a centrifugal pump is ______. A. noise and vibration B. an increase in discharge pressure C. an increase in suction pressure D. lifting of the relief valve 21. Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions? A. Sub-cooled liquid B. Sub-cooled vapor C. Superheated vapor D. Liquid 22. ______is the circulation and refreshing of the air in a space without necessarily a change of temperature. A. Refrigeration B. Air conditioning C. Ventilation D. Heating 23. In an air conditioning system, moisture is removed from the air by ______. A. filters B. separators C. ducted traps D. dehumidifiers 24. Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of ______. A. refrigerant bubbles in the lube oil B. refrigerant reducing the lube oil viscosity C. oxidation of the lube oil from overheating D. reducing the floc or cloud point of the oil 25. A high rate of separation between oil and water is favored by ______. A. large size of oil globule B. low temperature C. high viscosity D. high flow rate 26. When started, a complete oily water separating unit is first filled ______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment. A. with dirty water B. with clean water C. by oily water D. by mixed water 27. Which is the pollution prevention equipment? A. booster pump B. evaporator C. incinerator D. cooler 28. The ____is used to burn oil sludge. A. clarifier B. oily water separator C. incinerator D. distiller 29. Oil water separators are used to ensure that ships don't discharge oil when pumping out _____. A. ballast water B. boiler water C. bilge water D. sewage water 30. When a clarifier is running the impurities and water collect at the bowl ______. A. center B. periphery C. inlet D. upper parts 31. The separation of impurities and water from ______ is essential for good combustion of diesel engines. A. lube oil B. fuel oil C. turbine oil D. grease 32. Brine density in a distilling plant is measured with a/an ______. A. psychrometer B. salinometer C. anemometer D. sphygmomanometer 33. The designed ______ is 20 tons per day, but the fresh water generator can only distil 15 tons at present. A. displacement B. weight C. power D. capacity 34. ______ play a very important part in hydraulic systems by preventing interaction between different parts of the hydraulic circuit.