轮机英语题库

0001"Beforedisconnectingtheoilpipe,wouldyouflushtheoilretainedinthepipe?"askedtheoilbargeowner.A.byusingoffreshwaterB.withcompressedairC.byusingofseawaterD.withchemicalcompound0002"Standbyanengine"means_____.A."preparetostoptheengine"B."assembleanengineonitsbedplate"C."makeanenginereadyforstarting"D."dismantleanengine"0003A_____isthefoundationoftheengine,withoutthesupportofwhichtheshaftalignmentinparticular,andenginestructureasawhole,wouldinevitably不可避免的belost.A.FrameB.BedplateC.CylinderD.Liner0004_____arecommonlyusedinmechanical-hydraulicgovernortosenseenginespeeds.A.BulbsB.BulksC.FlyweightsD.Flywheels0005_____aregenerallyformedintheframeofthebothin-lineandVeeenginestogivemaintenanceaccesstothecrankshaftmainandconnectingrodlargeendbearing.A.DoorsB.Aspirategauzer纱布C.CouplingD.Blind0006_____arrangementshavelowtemperatureairandhightemperatureexhaustgaspassingthroughadjacentports,causingtemperaturedifferentialproblemsforthelinermaterial.A.LoopscavengeB.CrossscavengeC.UnifiowscavengeD.Supercharge0007_____becameoval,itshouldbemachined.A.Theupperhalfofcross-headbearingB.Thecross-headpinC.Thecross-headbearingD.Thecress-headguideplate0008_____deviceisprovidedtopreventstartingairfrombeingadmittedtothecylinderbeforethereversing回动iscompleted.A.AnautomaticB.AtransmissionC.Aself-regulatingD.Aninterlocking0009_____fueloils_____lubricatingoilsrequiretreatmentbeforepassingtotheengine.A.Both/andB.Neither/norC.Either/orD.Both/or0010_____issometimesusedforpistoncoolingsinceleaksintothecrankcasewouldnotcauseproblems.A.DieseloilB.HydraulicoilC.LubeoilD.Mineraloil0011_____istheremovalofexhaustgasesbyblowinginfreshair.A.GasexchangeB.ChargingC.ScavengingD.Supercharging0012_____isusedforcylinderandcylinderhead,thesaltwaterisusedforcoolingthelubricatingoil,thefreshwaterinthecoolersandthechargingairintheaircooler.A.ThefueloilB.ThelubeoilC.TheseawaterD.Thefreshwater0013_____maybethefirstpossiblecausewhichmakestheenginetolosepowerorslowdownwhenitisrunning.A.HotbearingB.StartingvalvesC.UnequaldistributionofloadD.Excessivecrankshaftclearance0014_____ofanenginecrankshaftcanbedetectedbymeasuringdeflectionsofcrankwebsforeachunitoftheengine.A.MisalignmentB.LengthC.StrengthD.Stresses0015_____oftheA-framesthereisastrongcastironframecalledthescavengingairbox.A.AtthetopB.AtthebottomC.InthetopD.Inthebottom0016_____pistonshavelowinertiaandhighcoefficientofthermalexpansion.A.CastironB.CaststeelC.ForgedsteelD.Aluminum0017_____scavengingmeansbothexhaustportsandscavengingportsarearrangedtothesameside.A.UniflowB.CrossC.LoopD.Straight0018_____shouldnotundertakeanytaskwhichwillinterferewiththesupervisiondutiesrelatingtothemainmachineryandassociatedequipment.A.ThewatchkeepingpersonnelB.ThechiefengineerC.ThepersononabunkerbargeD.Anyoftheabove0019_____tappetclearance挺杆间隙willcausetheexhaustvalvetoopenearlyandcloselateincycleandwillincreaseitsmaximumlift.A.ExcessiveB.InsufficientC.CorrectD.Noneoftheabove0020_____tappetclearancewillcausetheexhaustvalvetoopenlateandcloseearlyincycleandwillreduceitsmaximumlift.A.CorrectB.InsufficientC.ExcessiveD.Noneoftheabove0021_____tappetclearancewillcausetheexhaustvalvetoopenlateandcloseearlyincycleandwillreduceitsmaximumlift.A.CorrectB.InsufficientC.ExcessiveD.Noneoftheaboveiscorrect.0022_____thecylinderwillcontainagreatweightofairandwillbecapableofburningagreatquantityoffuel.A.AtthebeginningofthecompressionstrokeB.AtthebeginningofthesuctionstrokeC.AttheendoftheworkingstrokeD.Attheendoftheexhauststroke0023_____thesuperchargepressureis,_____poweranenginedevelops.A.Thehigher/themoreB.Higher/moreC.Higher/littleD.Thehigher/theless0024_____deviceisprovidedtopreventstartingairfrombeingadmittedtothecylindersbeforethereversing回动iscompleted.A.AnautomaticB.AtransmissionC.AninterlockingD.Aserf-regulation0025_____isnotproperlysetthuscausingeitheradvancedorretardedfiring.A.ApistonB.AfuelinjectionpumpC.AfeedwaterpumpD.Alubeoilpump0026_____meansthatbothexhaustportsandscavengingpeasarearrangedonthesameside.A.UniflowscavengeB.CrossscavengeC.LoopscavengeD.Straightscavenge0027_____rodsarenotinproperconditionsothattoomuchfuelissuppliedtothecorrespondingcylinder.A.PistonB.SoundingC.RegulatingD.Connecting0028_____shows1.2meterandthespecificgravityoftheoilis0.96.Accordingtothemeasuringscale,thatmakes150tons.A.ThepistonrodB.ThepushrodC.ThesoundingrodD.Theconnectingrod0029_____allowsforexpansionandwatermakeupinthewatercoolingsystem.A.AtoptankB.AheadtankC.AheadvalveD.Adraintank0030_____attheendofthedistributionpipeensuresthatadequatepressureismaintainedbythepump.A.AreliefvalveB.AnalarmC.ApressuregaugeD.Anon-maimvalve0031_____isusedforwashinganddrinking.A.TheballastsystemB.ThesaltwatersystemC.ThebilgesystemD.Thedomesticsystem0032_____providethewatertothepistons.A.PneumaticpipesB.HydraulicpipesC.TelescopicpipesD.Operatinggaspipes0033_____arefittedintheexhaustsystemandfacilitatechargeremovalandscavengingineachcylinder.A.DiffusersB.CompressorsC.SteamboilersD.Sootblowers0034_____areformedbyabrasiveparticlesenteringthebearingandscoringtheshaft.A.GroovesB.RecessesC.RidgesD.Nips0035_____aremountedonandboltedtothebed-platecrossgirders.A.ThecrankshaftB.ThecrankcaseC.Theguide-waysD.Theframes0036_____isaprecautionwhichcontributestoavoidingtroubleundernormaloperatingconditions.A.ConstantinspectionB.KeepingconstantloadC.RemainingconstanttemperatureD.varyingspeed0037_____isasourceofpowerbywhichthedieselenginemayoperate.A.WaterenergyB.ElectricalenergyC.ChemicalenergyD.Heatenergy0038_____isarrangedforcleaningthelubricatingoilinthesystemandcleanoilcanbeprovidedfromastoragetank.A.AfilterB.AcentrifugeC.AdistillerD.Agenerator0039_____isfullyfloatinginbothconnectingrodsmallendandthepistonskirt.A.ThepistonrodB.ThecrossheadpinC.ThegudgeonpinD.Thecrank-pin0040_____ismadeofabosswithseparatedbladesmountedintoit.A.AvariablepitchpropellerB.AvariablepitchnutC.AfixedpitchparallelD.Afixedpitchscrew0041_____isusuallydrivenbytheenginecamshaftandsuppliespilotairtothecylinderairstartvalve.A.AnairreceiverB.AnoperatingvalveC.AnautomaticvalveD.Anairdistributor0042_____neutralizestheacidconditionsand_____cleansestheringsandgrooves.A.Thedetergency/thealkalinityB.Thealkalinity/thedetergencyC.Theinhabitant/thewaterD.Theadditives/thedistilledwater0043_____ofthecontrollablepitchpropellerenablesthebladestobemovedtochangethepitchangle.A.AnexternalmechanismB.AninternalmechanismC.AninterlockdeviceD.Ahuntinggearsystem0044_____onashiptransmitspowerfromtheenginetothepropeller.A.AutomaticcontrolsystemB.SpeedregularlysystemC.ThetransmissionsystemD.Compressionairsystem0045_____orairventingarrangementisfittedtothefuelsupplypassage.A.AnairpumpB.AcompressorC.AfuelpumpD.Apriming0046_____providinglubricatingfilms,oilusedinmarinedieselengineshavetoremoveheatfromoilcooledpiston.A.ExceptforB.BesideC.ExceptD.Inadditionto0047_____theengines,thedieselengineis_____usedengineonboard.A.Between/morecommonlyB.Among/themostcommonlyC.Between/notmorecommonlyD.Among/notthemostcommonly0048_____waterismoreexpensivethanfreshwater.Ithashighspecificheatandlowviscosity.A.DistilledB.DistillingC.BoilingD.Boiled0049_____forthecamshaftgeartrainistakenfromaspurgearwhichforasixcylinderengineisatthecouplingend.A.ThedrivengearB.ThedriveC.ThegreaseD.Thelubricatingoil0050_____inwhatpositiontheenginestopstherewillalwaysbeatleastoneofthecylinderswithitsstartingairvalveopentoadmitcompressedairtostarttheengine.A.BecauseB.OwingtoC.ForD.Nomatter0051_____issecuredbymeansofside-chockboltsandend-chockbolts.A.ThebedplateB.ThecolumnC.ThemainbearingD.Thedoublebottom0052_____controlsthefueloiltemperatureinordertoprovideoilatthecorrectviscosityforcombustion.A.TheviscosityregulatorB.ThetemperaturecontrollerC.TheflowmeterD.Thepressureswitch0053_____forattachmenttothepropellershaftalsoaccommodatestheturninggearandisintegrallyforgedwiththecrankshaft.A.ThecouplingflangeB.ThecamshaftC.Thecross-headpinD.Thecylinderjackets0054_____shouldbetakenout,cleaned,andliftingcheckedeveryfourtosixmonths.A.PistonsB.FuelinjectionvalvesC.CrankshaftD.Cylindercovers0055_____usuallyhelpstoinduceairmovementtoassistcombustion.A.CylindercoverB.MainbearingC.TheexhaustvalveD.Thepistonmovement0056_____mayhavetwoemergencysourceofpower,thusrequiringtwoemergencyswitchboards.A.LargepassengervesselsB.GeneralcargoshipsC.ContainershipsD.Oiltankers0057_____suppliespilotairtocontrolthecylinderairstartvalves.A.AnaircompressorB.AnindicatorcockC.AnairdistributorD.Asafetyvalve0058_____lessequipmentincontactwithseawater,thecorrosionproblemsaremuchreducedinacentralcoolingsystem.A.BecauseB.WithC.WithoutD.Though0059_____clearancesinthemainorcrankpinbearingswillsometimesbeindicatedbylossofpressureinthelubricatingsystembeforeanybearingknockisheard.A.ToolargerB.ToosmallerC.ExcessD.Excessive0060A_____onthedeliverysideofthepumpclosestostopfueloilreturningfromtheinjector.A.returnvalveB.non-returnvalveC.safetyunitD.stopvalve0061A_____ensuresaconstantpressureatthefuelmain.A.transferpumpB.controlairbottleC.pressureregulatingvalveD.non-returningvalve0062Acaststeelstrongbackisfittedinwayofthecombustionspacetohelpabsorb_____.A.flametemperatureB.fueloilC.airmovementD.gasforces0063Achargeoffreshairisdrawnintotheenginecylinderandthen_____bythemovingpiston_____veryhighpressure.A.pressed/toB.pressurized/withC.pushed/inD.compressed/to0064Acommontroublewiththefuelpumpplungerorfuelvalvespindleis_____.A.waterleakageB.steamleakageC.oilleakageD.airleakage0065Acommontroublewiththefuelpumpplungersorfuelvalvespindleis_____.A.brokendownB.stuckC.oilleakageD.carbonized0066Adieselengineissimilartoagasolineengineexceptthattheformerhasno_____.A.cross-headB.cylinderC.connectingrodD.sparkplug0067Adieselengine'scrankcaseoillevelisfoundtobetoohigh.Youshouldsuspectthat_____.A.theenginewasoverfilledB.theremightbeafuelleakC.theremightbeawaterleakD.alloftheabove0068Adistancepiece,knownasa_____maybeinterposedbetweentherodandthebearinghousing.A.bearingshellB.bearinglinerC.compressionplateD.leadwire0069Adistancepiece,withgroundfaces,knownasacompressionplate,maybeinterposedbetweentherodandthebeatinghousing,itsthicknessbeingchosentoensurethecorrect_____.A.compressionpressureB.compressiontestC.compressionratioD.compressionclearance0070Adistancepiece,withgroundfaces,maybeinterposedbetweentherodandthebearinghousing,itsthicknessbeingchosentoensurethecorrect_____.A.expansionratioB.pressureratioC.compressionratioD.clearanceratio0071Agovernorautomaticallycontrolsenginespeedbyregulating_____.A.fuelsupplyB.firingorderC.engineloadD.oillevel0072Agudgeonpininatrunkpistonmaybefreetofloatandrotate,with_____tolimitaxialmovement.A.splitpinsB.crankpinsC.dipsticksD.circlips0073Aheaterinthecircuitfacilitateswarningoftheenginepriorto_____bycirculatinghotwater.A.startingB.stoppingC.tostartD.tostop0074Ahightemperaturealarmor_____whichwillmeltisusedtoguardagainsttheexplosionofcompressorairpipelines.A.aflametrapB.areliefvalveC.afusibleplugD.aburstingcap0075Ahotairstartpipeindicatesthatthereis_____.A.inefficientcoolingB.aleakingairstartvalveC.acloggeddrainvalveD.aleakingairbottle0076Alevelgaugeforatankisto_____.A.givethepressureB.givethecontentsC.givetheshapeofthetankD.givetheaccuracylevel0077Alowspeedenginerequires_____reductiongearbox_____itandpropeller.A.none/bothB.no/bothC.none/betweenD.no/between0078Alubricantoftenhastoperformmanydutiesinanysituation,inadditiontoitsfundamentaljobof_____.A.resistingoxidizationB.reducingfrictionC.promotingmovingspeedD.developinginertia0079Amainbearingconsistsoftwoshellswhicharesecuredbymeansofstudsand_____.A.tierodsB.throughboltsC.leadwiresD.bearingcaps0080Anumberofcylinderlinersareenclosedinonecastironcasingtoforma_____.A.cylindercoverB.cylinderblockC.cylinderframeD.bed-plate0081Anumberofdifferentscavengingmethods_____inslowspeedtwo-strokeengines.A.areinuseB.isusedC.areusingD.hasbeenused0082Areductioninloadonadieselengineresultsin_____ofspeedofthecrankshaft.A.areductionB.anincreaseC.anoutingD.adownwards0083Asealingarrangementisprovidedat_____ofthetail-shaftwiththepropellerandconecompletingthearrangement.A.bothendsB.neitherendC.theoutboardendD.eitherend0084Aseparatepistoncoolingsystemisused_____anycontaminationfrompistoncoolingglandstothepistoncoolingsystemonly.A.tohelpB.tolimitC.toprotectD.toremove0085Aseparatepistoncoolingsystemisusedtolimitanycontamination_____pistoncoolingglands_____thepistoncoolingsystemonly.A.between,toB.either,orC.from,toD.neither,nor0086Asinglepiece_____fittedwithbronzeringsguidesthepistoninthecylinderliner.A.pistonskirtB.pistoncrownC.guidewayD.cross-head0087Aslow-speedtwo-strokedieselisusuallyarrangedtooperatecontinuouslyonheavyfueloilandhasavailablea_____supplyformanoeuvringconditions.A.lubricatingoilB.dieseloilC.residualoilD.hydraulicoil0088Avariablepitchpropellerismade_____abosswithseparatebladesmountedintoit.A.ofB.upofC.fromD.out0089A:Pleasetellmethespecificationsandquantity.B:_____.A.PumpdieseloilfirstB.300tonsof180cstfueloilC.ThefigureisallrightD.OK,I'llsignit0090Abouthalfanhourbeforetheengineisrequired,coolingwaterat_____mustbecirculated.A.morethantheworkingtemperatureB.lessthantheworkingtemperatureC.theworkingtemperatureD.thesameasthesurroundingtemperature0091Accordingtothewaytheenergyoftheexhaustgasesisutilized,pressure-chargingcanbedividedintotwomainsystems,namely,theconstant-pressuresystemand_____.A.thepulse-phasesystemB.thepulseDopplersystemC.thepulsesystemD.thepulseinterval0092Acidsolutioninthesystemcanbetestedfromtimetotimebyputtingsomeontoapieceoflime.A.strengthB.denseC.percentageD.velocity0093Additives_____protectivelayersonmetalsurfacesguardingthemagainstcorrosion.A.damageB.formC.dissolveD.contaminate0094Adjust_____bymeansofleadwire.A.theclearanceofthemainbearingB.thediameterofmainbearingC.thegapofmainbeatingD.thetoleranceofmainbearing0095Administrationsshouldbearinmindthesignificanceof_____inmaintainingsafetyoflifeandpropertyatseaandinpreventingmarinepollution.A.advancednauticalequipmentB.advancedperformancemainenginesC.emergencyequipmentD.communicationandlanguageskills0096A-framesandcylinderblockisheldtogetherby_____toformarigidstructure.A.connectingrodsB.pistonrodsC.tierodsD.jack-bolts0097A-framesaremountedonthebedplateandsupport_____andcylinderblock.A.themainbearingB.thecylindercoverC.theentablatureD.thesumpA.steeringB.timingC.turningD.running0099Afterensuringthatthe_____iscorrectthebearingclearanceshouldbechecked.A.napB,gapC.nipD.deflection0100Afterfittingbackinplacethegearwheels,don'tforget_____them.A.togreaseB.greasingC.oilingD.lubricating0101Afterpassingthroughtheturbinetheexhaustgasisconductedoutintothe_____.A.intercoolerB.compressorC.cylinderD.openair0102Aftertheengineiswarned,weshould_____theturninggearbeforestartinguptheengine.A.takeinB.putinC.takeoutD.putup0103Aftertheorder“_____”isgiven,theairsystemisshutdown,theturninggearputin.A.FinishedWithEngineB.StopTheEngineC.Stand-byEngineD.Slow-downEngine0104Aircocks,usuallypositionedatthe_____inacirculatingsystem,isusedtogetridoftheairinthesystem.A.bendingjointB.expansiontankC.weldD.thehighestpoint0105Alltheringsareslightlyroundedontheirexternaltopandbottomedgestokeeptheoilfilmonthecylinderlinerduring_____fornewpistonrings.A.therunning-inperiodB.therunningprocessC.gasexchangeprocessD.theboilerfiring0106Allthreesystemshavetheports_____toswirltheincomingairanddirectitintheappropriatepath.A.angledB.roundedC.beingangledD.beingrounded0107Althoughthecrankshaftsofmediumdieselenginesappeartoberobust粗壮的；结实的,theyrelyonthesupportof_____todeveloptheirfullstrength.A.thepistonrodsB.thecrankthrowsC.thethrustbearingsD.themainbearings0108Aluminumpistonshave_____coefficientofthermalexpansioncomparedwiththoseofcastiron.A.higherB.lowerC.thesameD.noneoftheabove0109Amongtheringsofapistonthe_____oneissubjectedtothegreatestloadandtemperature.A.bottomB.middleC.topD.noneoftheabove0110Analuminumpistonhaslowerinertiaandhighercoefficientof_____comparedtothatofcastiron.A.viscosityB.twistingmomentsC.inertiaD.thermalexpansion0111Anelectricallydrivenautomaticallyoperatingauxiliaryblowerisprovidedforslowspeedand_____ofalowspeeddieselengine.A.manoeuvringoperationsB.badcombustionC.coolingD.mooringtrial0112Anincreaseinloadonadieselengineresultsin_____ofspeedofthecrankshaft.A.areductionB.anincreaseC.anoutingD.adownwards0113Anindicatordiagramisapressure-volumegraphtakenfromthepressureinthe_____ofaworkingengine.A.crankcaseB.fuelpumpC.scavengetrunkD.cylinder0114Aninterlockintheremoteoperatingvalvelinestopsthevalve_____whentheengineturninggearisengaged.A.toopenB.openingC.openD.opened0115Anoverspeedsafetydeviceisusuallyfittedtoageneratorenginefor_____intheeventofoverspeed.A.cuttingpowerofftheengineB.increasingthefuelpumpsettingC.brakingthecrankshaftD.stabilizingtheshipspeed0116Asaheatengine,_____energyisthesourceofpowerbywhichthedieselenginecanbeoperated.A.electricB.heatC.mechanicalD.exhaust0117Asforadieselengine,lackofcombustionairmaybedueto_____.A.foulingturbineB.fuelpumpfaultsC.lubricationfailureD.excessivecooling0118Astheplungermovesup,theportsareclosedandthefuel_____anddeliveredtotheinjectornozzleatveryhighpressure.A.beingcompressedB.tobepumpedupC.ispressurizedD.arebuiltup0119Atleast_____cylindersinatwo-strokeenginewillbeconfiguredtoensurethattheenginecanbestartedwiththecrankshaftatwhateverposition.A.6B.12C.4D.80120Atleast_____cylindersinfour-strokeenginewillbeconfiguredtoensurethattheenginecanbestartedwiththecrankshaftatwhateverposition.A.6B.2C.12D.80121AtthetopoftheA-framesthereisastrongcastironframecalled_____.A.cylinderlinerB.cylindercoverC.thegearboxD.thescavengingbox0122Besuretomaketheengineturnby_____beforestartingandafterstopping.A.steeringgearB.turninggearC.steeringwheelD.turningcycle0123Bearingknocksarelikelytooccurfrom_____.A.lessclearanceB.dirtylubeoilC.overloadD.bearingwear0124Becausethecastingsofsmallerenginesarenotsobigandheavy,_____andcylinderblockmaybemadeinonepiece.A.thecolumnB.thejacketC.cylindercoverD.cylinderliner0125Bedplatesarethe_____oftheengine,withoutthesupportofwhichtheshaftalignmentinparticular,andenginestructureasawhole,wouldinevitablybelost.A.hullB.projectionC.graphiticationD.foundation0126Before"standby"_____ontheenginetelegraph,itisusualtogivethemaindieselengineabrieftrialonpoweraheadandastern.A.isdeliveredB.isrungC.issentD.istransferred0127Before"standby"isrungontheenginetelegraph,itisusualtogivethemaindieselengineabrieftrial_____aheadandastern.A.withDowerB.onpowerC.withairD.onair0128Before"stand-by"isrungontheenginetelegraph,itisusualtogivethemainengine_____aheadandastern.A.abrieftrialwithturninggearB.abrieftrialonpowerC.alongtrialbysteeringgearD.oneminute'strialwithwindlass0129Beforeamarinedieselengineisstartedthecylindersandpistonsmustbe_____.A.cooledtoappropriatetemperatureB.warnedupgraduallytoappropriatetemperatureC.openedupandrenewedD.groundandpolished0130Beforebeingusedthefuelservicetankshouldbedrainedof_____.A.sodasolutionB.mechanicalimpuritiesC.ballastD.waterandresiduals0131Beforeinstallingtheseal,everypartofthe_____andtherodshouldbecarefullycleaned.A.bed-plateB.crankcaseC.evaporatorD.packingbox0132Beforepumpingupthecrankcaseoil,_____shouldbeworkedbyhandtominimizecorrosiveactionontheliners.A.theindicatorsB.thestartingvalvesC.thecylinderlubricatorsD.theturninggear0133Beforeputtingonthestartingair,thereversingandcontrolgearshouldbeA.operatedB.stoppedC.checkedD.removed0134Beforereplacingapistonyoushouldcheckthatallringsare_____.A.freeB.fastenedC.brokenD.stuck0135Beforereplacingapistonyoushouldchecktheringstoseethatallclearancesandgapsare_____thepermissibletolerances.A.aboveB.atC.overD.within0136Beforereplacingapistonyoushouldchecktheringstoseethatallclearancesandgapsarewithinthepermissible_____.A.deflectionB.discrepancyC.errorD.tolerance0137Beforestartingtheenginetheairbottleshouldbe_____.A.pumpedupB.loadedC.dischargedD.opened0138Beforestartingtheturninggear,_____shouldbe