2026年全国海船船员考试《轮机部（轮机英语8001）》复习题及答案

2026年全国海船船员考试《轮机部（轮机英语8001）》复习题及答案一、单项选择题（每题1分，共100分）1.Themainfunctionofadieselenginegovernoristocontroltheengine's______.A.temperatureB.speedC.pressureD.viscosity答案：B2.Inafour-strokedieselengine,thecorrectsequenceofstrokesis______.A.intake,compression,power,exhaustB.intake,power,compression,exhaustC.compression,intake,power,exhaustD.exhaust,intake,compression,power答案：A3.Thedeviceusedtoremovemoisturefromcompressedairiscalleda(n)______.A.oil-waterseparatorB.airdryerC.coalescerD.aftercooler答案：B解析：airdryer专门用于去除压缩空气中的水分；aftercooler主要起降温作用，虽会析出部分凝结水，但并非除湿设备。4.Thepurposeofaturbochargeristoincreasethe______ofairenteringthecylinders.A.temperatureB.densityC.humidityD.viscosity答案：B5.MARPOLAnnexIdealswiththepreventionofpollutionby______.A.sewageB.garbageC.oilD.air答案：C6.Themaindifferencebetweenatwo-strokeandafour-strokedieselengineisthenumberofstrokesper______.A.minuteB.cycleC.hourD.revolution答案：B7.Areciprocatingpumpisapositivedisplacementpumpthatusesa______motion.A.rotaryB.reciprocatingC.centrifugalD.axial答案：B8.Inarefrigerationcycle,thecomponentthatabsorbsheatatlowtemperatureisthe______.A.compressorB.condenserC.evaporatorD.expansionvalve答案：C9.Thepurposeofthesterntubebearingsistosupportandlubricatethe______.A.propellershaftB.camshaftC.crankshaftD.intermediateshaft答案：A10.Acentrifugeusedtoremovewaterfromfueloiliscalleda______.A.clarifierB.purifierC.filterD.coalescer答案：B解析：purifier用于分离燃油中的水分和杂质；clarifier主要用于分离固体杂质。11.Thecoolingmediumcommonlyusedinmarinedieselenginejacketsis______.A.seawaterB.freshwaterC.lubricatingoilD.compressedair答案：B12.Theemergencyfirepumpshouldbelocated______.A.intheengineroomB.outsidetheengineroomC.intheforecastleD.neartheboiler答案：B13.Thepurposeofaboilerwatergaugeglassistoindicate______.A.pressureB.temperatureC.waterlevelD.salinity答案：C14.Theviscosityoffueloilisnormallyreducedby______.A.coolingB.heatingC.filteringD.centrifuging答案：B15.Thefunctionofabilgepumpistoremove______.A.sludgeB.bilgewaterC.fueloilD.ballastwater答案：B16.Theabbreviation"ME"inmarineengineeringstandsfor______.A.mainengineB.mediumengineC.marineequipmentD.mainelectricity答案：A17.Thepurposeofareliefvalveistoprotectequipmentfrom______.A.overpressureB.lowpressureC.overheatingD.vibration答案：A18.Thefuelinjectiontimingofadieselengineisusuallyexpressedintermsof______.A.crankshaftangleB.camshaftangleC.crankcasepressureD.exhausttemperature答案：A19.Themaincomponentofacentrifugalpumpthatconvertsvelocityenergyintopressureenergyisthe______.A.impellerB.volutecasingC.shaftD.bearing答案：B解析：impeller将机械能转化为液体的速度和压力能，volutecasing将速度能进一步转化为压力能。20.TheISMCoderequirescompaniestoestablisha______.A.safetymanagementsystemB.qualitymanagementsystemC.environmentalmanagementsystemD.maintenanceplanningsystem答案：A21."SOPEP"standsfor______.A.ShipboardOilPollutionEmergencyPlanB.SafetyOperationProcedureforEnginePersonnelC.StandardOperatingProcedureforEnginePlantD.ShipOperationalPollutionEmergencyPlan答案：A22.Thepurposeofapneumaticcontrolsystemistouse______astheworkingmedium.A.oilB.waterC.airD.steam答案：C23.Thepressureattheoutletofanaircompressorisgenerallyexpressedin______.A.barB.literC.newtonD.kelvin答案：A24.Thedevicethatautomaticallystartstheemergencygeneratoruponfailureofthemainpowersupplyisthe______.A.AVRB.circuitbreakerC.transferswitchD.auto-startcontroller答案：D25.Themainreasonfortreatingboilerwateristoprevent______.A.scaleformationB.highpressureC.lowlevelD.steamflow答案：A26.Aviscosityregulatorisusedinthefueloilsystemtomaintainthefueloil______constant.A.temperatureB.viscosityC.pressureD.flowrate答案：B27.Thepurposeoftheturninggearistorotatetheengineslowlyduring______.A.normaloperationB.fullspeedC.maintenanceandinspectionD.starting答案：C28.Thedeviceusedtoseparatesuspendedsolidsfromfueloilbycentrifugalforceisa______.A.filterB.purifierC.heaterD.clarifier答案：D解析：clarifier主要用于除去燃料油中的固体悬浮物；purifier则同时分离水分和固体杂质。29.Thecrankshaftofadieselengineconvertsreciprocatingmotionofthepistonsinto______motion.A.linearB.rotaryC.oscillatingD.intermittent答案：B30.Themaximumpressurereachedinthecylinderduringcombustioniscalled______.A.compressionpressureB.firingpressureC.scavengepressureD.meaneffectivepressure答案：B31.Thefunctionofacondenserinasteamplantistocondensetheexhauststeaminto______.A.steamB.waterC.airD.oil答案：B32.Therateofflowofapositivedisplacementpumpisdirectlyproportionaltoits______.A.pressureB.speedC.headD.viscosity答案：B33.Thelowerpartofthepistonwherethepistonpinisfittediscalledthe______.A.crownB.skirtC.ringbeltD.boss答案：B34.Thefunctionofathrustbearingistotransmitthe______ofthepropellertothehull.A.torqueB.thrustC.vibrationD.weight答案：B35.Thepressureintheenginecylinderduringtheexhauststrokeshouldbe______atmosphericpressure.A.higherthanB.lowerthanC.equaltoD.slightlyabove答案：D解析：排气行程中缸内压力应略高于大气压，以便将废气排出气缸。36.Theabbreviation"PMS"inmarineengineeringcommonlyrefersto______.A.PlannedMaintenanceSystemB.PreventiveMaintenanceScheduleC.PerformanceManagementSystemD.PowerManagementSystem答案：A37.Themaincauseofcrankcaseexplosionsisthepresenceof______.A.fueloilvaporB.lubricatingoilmistC.watervaporD.hydrogengas答案：B38.Thedeviceusedtoreducethespeedofthepropellershaftandtransmitpowertothepropelleristhe______.A.reductiongearB.couplingC.clutchD.thrustblock答案：A39.Thepurposeofthescavengingairinatwo-strokedieselengineisto______.A.cooltheexhaustgasB.removeexhaustgasandsupplyfreshairC.increasecompressionratioD.reducefuelconsumption答案：B40.Themainpurposeofthelubricatingoilsystemisto______.A.cooltheengineB.reducefrictionandwearC.increaseenginespeedD.cleanthecombustionchamber答案：B41.Apumpthatusesthecentrifugalforceofarotatingimpellertoincreasethepressureofliquidisa______.A.reciprocatingpumpB.gearpumpC.centrifugalpumpD.screwpump答案：C42.TheInternationalConventiononStandardsofTraining,CertificationandWatchkeepingforSeafarersisabbreviatedas______.A.SOLASB.MARPOLC.STCWD.ISM答案：C43.Theterm"scavengefire"referstoafireoccurringinthe______.A.cylinderB.scavengeairreceiverC.scavengetrunkD.crankcase答案：C解析：扫气箱（scavengetrunk）或扫气通道内积聚油污，遇高温易引发扫气箱着火。44.Theunitusedtomeasuretheflowrateoffueloilis______.A.barB.literperminuteC.kilogrampermeterD.newtonsecond答案：B45.Thepurposeoftheexpansiontankinafreshwatercoolingsystemisto______.A.storeseawaterB.allowforexpansionofwaterC.increasepressureD.removescale答案：B46.Thepumpingofbilgewateroverboardafterpassingthroughtheoilywaterseparatormustberecordedinthe______.A.OilRecordBookB.EngineLogBookC.GarbageRecordBookD.BallastWaterRecordBook答案：A47.Thedeviceusedtodetectthepresenceofoilinwaterisan______.A.oilcontentmeterB.flowmeterC.viscometerD.tachometer答案：A48.Thepurposeofthestartingairsystemistoprovidecompressedairfor______.A.enginestartingB.coolingtheengineC.fuelinjectionD.turbocharging答案：A49.Themainfunctionofaboilersafetyvalveisto______.A.regulatesteamtemperatureB.releaseexcesspressureC.supplyfeedwaterD.controlwaterlevel答案：B50.Inarefrigerationsystem,therefrigerantchangesfromliquidtovaporinthe______.A.compressorB.condenserC.expansionvalveD.evaporator答案：D51.Theabbreviation"FO"commonlystandsfor______.A.freshoilB.fueloilC.filteroilD.fluidoil答案：B52.Theprocessofremovingsaltfromseawateriscalled______.A.distillationB.filtrationC.chlorinationD.evaporation答案：A53.Thepurposeoftheinertgassystemontankersisto______.A.coolthecargoB.reduceoxygencontentincargotanksC.increasetankpressureD.providebreathingair答案：B54.Thecamshaftofadieselengineisdrivenbythe______throughatiminggearorchain.A.crankshaftB.propellershaftC.intermediateshaftD.turbochargershaft答案：A55.Themaximumpermissibleworkingpressureofaboileristhepressure______.A.atwhichthesafetyvalveliftsB.atwhichthefuelpumpdeliversC.atwhichthefeedpumpoperatesD.atwhichthesteampipebursts答案：A56.Theterm"MCR"standsfor______.A.MaximumContinuousRatingB.MainControlRoomC.MeanCylinderRatioD.MinimumCompressionRating答案：A解析：MCR指柴油机最大持续功率，是船舶动力装置的重要额定参数。57.Themainfunctionofpistonringsisto______.A.sealthecombustionchamberandcontroloilB.coolthepistonC.connectthepistontotheconnectingrodD.supportthepistonskirt答案：A58.Thecapacityofacentrifugalpumpisnormallyexpressedin______.A.m³/hB.barC.kWD.rpm答案：A59.Thedeviceusedtoatomizefueloilintothecylinderisthe______.A.fuelpumpB.fuelinjectorC.fuelfilterD.fuelheater答案：B60.Theoilywaterseparatorworksmainlyontheprincipleof______.A.gravityandcoalescenceB.centrifugalforceonlyC.magnetizationD.evaporation答案：A解析：典型油水分离器利用油水密度差进行重力分离，并通过聚结元件使小油滴聚结上浮。61.Thefunctionofaheatexchangeristotransferheatfromonefluidtoanotherwithout______.A.mixingthefluidsB.changingthetemperatureC.reducingpressureD.increasingflow答案：A62.Theterm"UMS"standsfor______.A.UnattendedMachinerySpaceB.UniversalMaintenanceSystemC.UnitMonitoringSystemD.UnmannedMachinerySupervision答案：A63.Thefourmainpartsofamarinerefrigerationsystemarecompressor,condenser,expansionvalveand______.A.evaporatorB.receiverC.drierD.oilseparator答案：A64.Thepurposeofthestuffingboxonapumpshaftistoprevent______.A.leakageB.corrosionC.vibrationD.overheating答案：A65.Themainadvantageofatwo-strokedieselengineoverafour-strokedieselengineis______.A.higherpowerperunitweightB.lowerfuelconsumptionC.simplervalvearrangementD.easierstarting答案：A解析：二冲程柴油机每转一圈完成一个工作循环，在相同尺寸和转速下功率较高，因而单位重量功率较大。66.Theterm"BHP"standsfor______.A.BrakeHorsePowerB.BoilerHorsePowerC.BritishHorsePowerD.BasicHydraulicPower答案：A67.Thepurposeoftheairstartingvalveistoadmitstartingairintothecylinderatthecorrect______.A.temperatureB.pressureC.timeD.volume答案：C68.Themaincauseofcrankcasepressureriseis______.A.pistonblow-byB.waterleakageC.fuelleakageD.airleakage答案：A69.Thedeviceusedtomeasuretheexhaustgastemperatureofeachcylinderisa______.A.pyrometerB.thermometerC.manometerD.viscometer答案：A70.Inadieselengine,thefunctionoftheflywheelisto______.A.storeenergyandsmoothoutspeedfluctuationsB.increaseenginespeedC.reducefrictionD.balancethecrankshaft答案：A71.Theterm"LO"standsfor______.A.LubricatingOilB.LowOilC.LightOilD.LiquidOxygen答案：A72.Thepurposeofthecylinderlineristo______.A.formthecombustionchamberB.serveastheworkingcylinderforthepistonC.coolthepistonD.supportthecrankshaft答案：B73.Thedeviceusedtostartthedieselenginebysupplyingcompressedairatabout30baristhe______.A.airstartingsystemB.fuelinjectionsystemC.coolingwatersystemD.lubricatingsystem答案：A74.TheInternationalConventionfortheSafetyofLifeatSeaisabbreviatedas______.A.SOLASB.MARPOLC.STCWD.MLC答案：A75.Thepurposeofthefueloilservicetankisto______.A.storeheavyfueloilB.supplycleanfueloiltotheengineC.treatfueloilD.collectsludge答案：B76.Theterm"ship'sserviceair"referstocompressedairusedfor______.A.startingthemainengineB.controlandgeneralservicesC.fuelinjectionD.turbocharging答案：B解析：ship'sserviceair通常指船舶日用压缩空气，供控制系统、仪表及一般杂用；启动主机的是startingair。77.Themaincauseofoverheatingofacentrifugalpumpis______.A.closeddischargevalveoperationforlongtimeB.lowsuctionpressureC.highsuctionpressureD.opendischargevalve答案：A78.Thepurposeofboilerfeedwatertreatmentistopreventscale,corrosionand______.A.carryoverB.foamingC.primingD.alloftheabove答案：D解析：锅炉水处理应防止水垢、腐蚀以及汽水共腾、起泡、携带等不良现象。79.Theunitusedtomeasurethepressureoflubricatingoilis______.A.barB.literperminuteC.CelsiusD.newtonmeter答案：A80.Thepurposeofanoilmistdetectorinthecrankcaseistodetect______.A.oilmistconcentrationB.watercontentC.fueloilvaporD.exhaustgasleakage答案：A81.Theterm"E/R"commonlystandsfor______.A.EngineRoomB.ElectricRoomC.EmergencyRoomD.EquipmentRoom答案：A82.Themainfunctionofadieselenginecylinderheadisto______.A.closetheupperendofthecylinderB.supportthepistonC.connectthepistontothecrankshaftD.transmitthrust答案：A83.Thepurposeofthescavengingairinatwo-strokedieselengineistoremoveexhaustgasesand______thecylinderwithfreshair.A.fillB.coolC.heatD.pressurize答案：A84.Thedeviceusedtofilterfineparticlesfromfueloilbeforeinjectionisthe______.A.coarsefilterB.finefilterC.purifierD.clarifier答案：B85.Theterm"mainswitchboard"referstothepanelthat______.A.distributeselectricalpowerB.controlsthemainengineC.monitorsboilerpressureD.startstheemergencygenerator答案：A86.Thepurposeofthebilgehighlevelalarmistowarnof______.A.highbilgelevelB.lowoilpressureC.highexhausttemperatureD.lowfuellevel答案：A87.Themaincomponentofasteeringgearsystemthatconvertshydraulicpressureintomechanicalmovementisthe______.A.rudderB.hydraulicramC.pumpD.reliefvalve答案：B解析：液压油缸（hydraulicram）将油液压力能转化为柱塞或叶片的机械运动，带动舵叶转动。88.Theterm"jacketcoolingwater"referstothewaterthatcoolsthe______.A.cylinderlinersandheadsB.pistonsonlyC.exhaustgasD.turbocharger答案：A89.Thepurposeoftheturbochargerbloweristosupplyairat______pressuretotheengine.A.atmosphericB.increasedC.decreasedD.constant答案：B90.Themaincauseofcavitationinacentrifugalpumpis______.A.lowsuctionpressureB.highsuctionpressureC.highdischargepressureD.lowdischargepressure答案：A解析：吸入压力过低会使液体在泵内汽化形成空泡，空泡破裂时产生气蚀。91.Theterm"IGS"ontankersstandsfor______.A.InertGasSystemB.IntegratedGasSystemC.InletGasSystemD.InternalGasSystem答案：A92.Thepurposeofthefueloilboosterpumpistoraisethefueloilpressure