轮机英语真题45期,甲类三管轮

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轮机英语第45期TheseacidresiduesmustbepreventedfromenteringthecrankcaseotherwisethelubeoilwouldbeA.contaminatedB.emulsifiedCdeterioratedD.oxidatedTheratioofthebrakehorsepowertotheindicatedhorsepowerofadieselengineisitsA.thermalefficiencyB.mechanicalefficiencyC.brakethermalefficiencyD.volumeliicefficiencyThecetanenumberofadieselfueloilmedicatesitsA.viscosityB.acidcontentC・heatingvalueD.ignitionqualityThegreatestturbulenceinadieselenginecylinderiscreatedbytheA.shapeofthecombustionchamberB・fuelinjectionspraypatternC.cylindersweptvolumeD.degreeofpenetrationofthefueloildropletsTheprojectiononashaftdesignedtochangecircularmolioninloupanddownorbackandforemotioniscalledA.wheelB.crankshaftC・runninggearD・camAclearlyvisiblebenefitofRT-flexenginesistheiroperationatallshipspeeds.Thisisachievedbythesuperiorcombustionperformance・A.shocklessB.smokelessC・novibrationDnoiselessAmainbearingconsistsoftwoshellswhicharesecuredbymeansofstudsandA.tierodsB・throughboltsC.1eadwiresD・bearingcapsComparedtofour-stroke/cycleengines,two・stn)ke/cycledieselengineshavethedisadvantageofA.1esseventorqueB.highercylinderheadtemperaturesC.fewerpowerstrokesperrevolutionD・greaterweight/sizerequirementscontrolsthefueloiltemperatureinordertoprovideoilatthecorrectviscosityforcombustionA.TheviscosityregulatorB・ThetemperaturecontrollerC.TheflowmeterD.ThepressureswitchAlubricantoftenhastoperformmanydutiesinanysituatioirinadditiontoitsfundamenialjobofA.resistingoxidizationB.reducingfrictionC.promotingmovingspeedD.developinginertiaShaker,circulation,andsprayarethethreegeneralmethodsusedinA.pre-injectionfueloiltreatmentB.lubeoilfillrationC.lubeoilpurificationD・pistoncoolingWhichofthedieselenginecomponentslistedincreasesairdensityandhelpstoimproveengineoperatingefficiency?A.ImpellerB.AirbottleC.AircoolerDExhaustdiffuserEachcylinderhasonestartingvalvewhichisusuallyopenedbyairpressureandclosedbyA.nutsandboltsB.newjointsC・springforceD.sealingringsWhichofthelistedgovernorcharacteristicswillgreatlyaffecttheloadsharingrelationshipbetweenparalleleddieselgenerators?A.SensitivityB・PowerC・SpeeddroopD.CompensationApyrometerisaninstrumentcommonlyusedtomeasure・A.cylinderpressureB.flameintensityC.exhaustgastemperatureD.crankshaftaxialalignment Afterstartingadieselengine,whichofthelistedoperatingconditionsshouldbecheckedfirst?A.AirboxpressureB.LubeoilpressureC.ExhausttemperaturesD.Rawwaterpressure17.Ahightemperaturealarmorwhichwillmeltisusedtoguardagainsttheexplosionofcompressorairpipelines.A.aflametrapB.areliefvalveC.afusibleplugD.aburstingcap18.Greatcareisdedicatediotheremovaloffromthescavengeair.A.gravityB.viscosityC・densityD.humidity19.LubricationforthemainreductiongearsusedwithdieselenginesisusuallysuppliedbyA.oilfromthemainenginesumpB.anindependentlubeoilsystemC.thesternbearingheadtankD.thesternbearingsumptank20.ThemaximumpressuredevelopedbyawastehealboilerisdeterminedbythemainengineexhaustA.gascompositionB・gastemperatureC・pressureD.timing21・Theisfittedinpaironeisthemainvalvetheothertheauxiliaryorstandby.A.mainsteamstopB.auxiliarysteamstopvalveC.feedcheckorcontrolvalveD・blowdownvalve22.Impropermaintenanceofthefueloilburnersinanautomaticallyfiredauxiliaryboiler,couldresultin.A.incTeasedfuelconsumptionB.increasedfeed・waterconsumptionC.fuelpumpfailureD.combustioncontrolsystemfailure23.BurnerignitionfailureinanautomaticallyfiredauxiliaryboilerwouldbecausedbyA.aburnedoutsolenoidintheoilsupplyvalveB.hightemperatureexcessairC.incorrecliysettingthehoi-welldumpvalveD.anincorrectlypositionedburnersnubber（缓?t1器）relay24.Watersidescaleinafire-tubeboilermaycause・A.increasedheattransferB.firesideerosionC.highsteamdemandD・overheatedtubes25.ThrottlinginthelineofacentrifugalpumpinvolvestheriskofthepumpcavitationA.suctionB.exhaustC・pressureD・discharge26.Centrifugalpimpcanbedesignedwithanumberofimpellerstoattainahighfinaldeliverypressure・A.attwoendsofthesameshaftB・oppositeeachotherC.parallelD.inseries27.Beforedisconnectingajointinapipeline,youshould・A.determinethesizeofthegasketB.hangabucketunderthejointC.haveafirstaidkitonhandD.besurenopressureexistsintheline2&Tothoroughlypumpoutthebilgesusingahorizontallymountedcentrifugalpump,theA.pumpmustalwaysbeprimedB.volutemustimpartaradialandrotarymotionofthewaterC.suctionsideconnectionmustguidetheliquidtothelanternringsD.stuffingboxshouldnotbeallowedanywaterleakage29.Whichofthelistedconditionscanleadtocavitationinacentrifugalpump?A.VaporpocketsformedinthesuctionflowstreamB.RoughcasingvolutesurfacesC.Wornwearingrings A.Heavyfluidintheflowstream29.Refrigerantenteringthecompressorofarefrigerationsystemshouldbeinwhichofthefollowingconditions?A.Sub-cooledliquidB・Sub-cooledvaporC・SuperheatedvaporD・Liquid30.isthecirculationandrefreshingoftheairinaspacewithoutnecessarilyachangeoftemperature・A.RefrigerationB・AirconditioningC.VentilationD.Heating31.Inachilledwaterairconditioningunitusingareciprocatingcompressor,therefrigeratingeffecttheprimaryrefrigerantcanbeincreasedby.A.increasingrefrigerantpressureinthecoilB.increasingchilledwaterflowthroughthecoolerC.sub-coolingtherefrigerantin(hecondenserD.superheatingtherefrigerantinthecompressor32.Ifaplasticfilminsulationbecomesdamagedinairconditioningsystem,mayformwithinthefilm.A.evaporationB・condensationC・1iquefiesD・vaporization33.Theresistanceiothemovementoftheglobuleinoilywatermixturedependsonitssizeandtheofthefluid.A.pressureB・velocityC・gravityD.viscosity34.Becausethefiowrateofsupplywaterpumpistoolarge,oilywaterseparatordoesnotworkwell・Whichofthefollowingisnotthereason.?A.themonitoringequipmentisoutoforderB.separatingeffectbecomesbadC.separatingeffectbecomesbadandinnerwallisconlaminatedD.inneTwalliscontaminated35.Whichofthefollowingwouldnotbeburntinanincineratoronboard・A.wasteoilB.wasteclothesC・oilragsD.plasticgarbage36.Concerningtheincinerator^operating,whichofthefollowingisnotcorrect?A.scavengingtimeshouldbemorethan30secondsbeforeignilingB.lheoiltemperatureofwasteoiltankis80〜10(TCC・firstignitingtheincineratorwithdieseloil,whenthetemperatureofhearthisabout600°CD.lheashfromincineratorcanbedumpedintoseanodistancelimitation3&areusedtodigestthesewageloproduceinnocuoussludgeinabiologicalsewagetreaimeniplant.A.anaerobicbacteriaB.aerobicbacteriaC.airbubblesD・disinfectionchemicals39.Acentrifugearrangedtoseparatetwoliquidsisknownas・A.anoilywalerseparatorB.apurifierC・acentrifugalcompressorD・aclarifier40.Acentrifugalfueloilpurifiershouldbeshutdownif・A.moresealingwaterisneededB・lheoverclampneedstighteningC・lhepurifierhasabadvibrationwhenstartedD.waterisdischargedfromoverllowline41.Ifthebowlofadisktypecentrifugalpurifierwhenoperatedasaseparatorisnotprimed,theA.oilhasatendencytoemulsifyinthebowlB・purifierwillactasaclarifieratthedischargeringC・oilwillbelostthroughthewaterdischargeportsD・oilsolidswillbedepositedonlyattheintermediatelopdisk 42.Inatwo-stageflash-typeevaporator,excessbrineinthefirststageautomaticallypasses・A.directlytothesecondstagefeedheaterB.directlyoverboardthroughthebrinecoolerC・iniothesecondstageflashchamberD.iniothesecondstagevaporcondenser43.Inwhichoftheareaslistedwouldyouexpecttofindlhehighestsaltconcentrationinaflashevaporator?A.DistillerairejectorcoolingmediumB.SaltwaterheaterdischargeC・First-stageinternalfeedboxD.Second-stageinlemalfeedbox44.Hydrauliccontrolcheckvalvecanbeusedtointhemarinehydraulicmechanism・A.controlthebackpressureofreturnoilB.locktheoillinesundersomeconditionsC.permitoilflowwithreverseddirectionD.Second-stageinternalfeedbox45.Thedeliveryrateofavariablestrokeaxialpistonhydraulicpumpiscontrolledbyvaryingthepositionofthe・A.slideblockB・tiltingboxC・pintleD.reactionring46.Thecraneisusuallymountedonapedestalloofferadequatetotheoperator.A.timeB.spaceC・lengthD.visibility47.Whichproblemscanoccurif(hebrakebandliningofawildcatbrakebecomesexcessivelyworn?A.Thedrivingenginewillover-speed・B・TheanchorwillimmediatelydropC.TheclutchwilloverheatD・Thebrake'seffectivenesswillbereduced4&withvariousarrangementsofbaiTelsaretheusualmooringequipmentusedonboardships.A.CranesB.WinchesC.CapstansD.Windlass49.Overheatingofahydraulicsystemmaybearesultof・A.changingpumpdischargepressureinresponsetonormalloadvariationsB.ahighoillevelC・incoireclfluidviscosityA.continuedslowre-circulationoftheoil5().Inthedesignofhydraulicpipingandequipmentconsiderationisgiventominimizeturbulenceinthehydraulicfluidasthiswillcause・A.molecularfluidvibrationB・energylossesC・widepressureviiriationsD.mechanicaldamagetocontrolvalves51・Onefactorthatdeterminesthefrequencyofanalternatoristhe・A.numberofturnsofwireinthearmaturecoilB.numberofmagneticpolesC・strengthofthemagnetsusedD.outputvoltage52.Whatwillbethephaseanglerelationshipofasix-pole,three-phase,rotatingfieldgenerator?A.60B.120C.180D.36053.Toparallelanincomingmachinetoarunningmachinethereforeitisnecessarytoensurefirstlythat・A.twofrequenciesmustbebroughtintophaseB.theincomingmachineacceptsasmallamountofloadC.lherunningmachinemustbeunloadD.bothvoltagesareequal54.Thefrequencyofanalternatoriscontrolledfromthemainswitchboardbyadjustingthe・A.frequencymeterB.voliageregulatorC・governorcontrolD.sychroscopeswitch55.isprovidedtoalternators,intheeventofprimemoverfailuretoensurethatthealternatordoesnotactasamoto匚A.ReversecunentprotectionB・Reversepowerprotection A.SynchronisingdeviceD.Frequencymeter52.isusedtocontrol,modulate,monitorandprotectgeneratorset.A.ControlpanelB.LoadpanelC・ParallelingpanelD.Busbar53.Whichofthelistedsectionsofanemergencyswitchboardisusedtosupplypowerforalarmsignalsunderemergencyconditions?A.ThegeneratorandbustransfersectionB.The450volt,60cycle,3phasebusC.The120volt,3phase,60cyclebusD.The24voltDCbus54.Thegroundterminalofastartershouldbeconnectedto.A.thecommongroundpointB.thestarter'sframeC・thecommunicatorD・thestarter^mountingbolts55.Whichoftheelectricalpropertieslistedwillalwaysbethesameforeachcomponentinaparallelcircuit?A.1mpedanceB・CurrentC・ResistanceD.Voltage56.Inaseriescircuit,whichvaluewillremainunchangedatallplacesin(hecircuit?A.VoltageB.CurrentC・ResistanceD・Inductance61.1nanalternatingcurrentelectricalsystem,alowsystempowerfactorisadirectsignofA.wastedenergyB.efficientoperationC・ashortintheexciterfieldwindingsD・anexcessivenumberofminorsystemgrounds62.Accidenlalgroundsinashipboardelectricalsystemmustberepairedassoonaspossibleastheywill.A.resultinimmediatepoweroutagesB・damagecircuitbreakersC・appearonthegrounddetectionsystemD・damageinsulationandmaycauseoutage63.Ifthemainenginestartingconsecutivelyfailedtimes,thecauseshouldbefoundandthetroubleeliminatedbeforenextstarting・A.2B.3C.4D.564.Thenormalcoloroftheexhaustgasofthedieselshouldbe・A.achromatismorthingrayB.thinwhiteC.sky-blueDblack65.Afterfinishedwithengine,whichoflhefollowingcannotbeshutoffbythedutyengineer?A.fuelvalveB.themainstartingvalveC.lheseachestD.lhemainseawaterpumpinletvalve66.Beforetheseasgetrough,itisagoodsafetypracticeto・A.secureloosegearB・movequicklyabouttheshipC.increaselightingD・shutdownauxiliaryequipment67.Aclass，firewouldoccurin.A.beddingB・pipeinsulationC・paintD.agenerator68.Themostlikelyplaceforafiretostartthroughlheprocessofspontaneouscombustionisin•A.anelectricalswitchboardB・thepressuretanksC.thefueloiltanksD.theoilyragbin69.Whichofthefireextinguisherslistedistobeweighedannuallyandsentashoreforrechargingiftheweightlossexceedsl()%ooftheweightofafullcharge?A.FoamB・SodaacidC.DrychemicalD.Carbondioxide70.Whichofthefollowingcomponentsprovidesadirectsourceofseawaterforthefiremainsystem?A.RoseboxB.SeachestC・SluicevalveD.Firepumpstuffingbox71・Whenadministeringartificialrespiration,itisoftheutmostimportanceto・ A.usethemouth-to-mouthmethodB.clearairwaysC・userhythmicpressuremethodD.checklheinjuredperson'sheartbeat72.Obviously,foragivenfueloil,itspourpointisitscloudpoint.A.1owerthanB.higherthanC・assameasD.betterthan73.,wheretheshipisdockedforhullcoatingrenewal,andforanyotherrequiredunderwaterworktobecarriedout,whenlheopportunityistakentomakeotherrepairs・A.VoyagerepairsB・RoutinedockingC.DamagerepairsD・conversion74.Whenlhedockisrefilledwithwaterafterdockingrepair,thefirstworkwhichshouldbedonebyengineerdepartmentis・A.ignitingauxiliaryboilerB.releasingairinseawatersystemC・startinggeneratorD.cutoffshorepower75.Thecorrecttighteningisobtainedbytheuseoftomeasuretheextensiongiventothebolts・A.pressuregaugesB.ihermomelersC・stretchgaugesD.bridgegauges76.IntheOilRecordBook,acomprehensivelistofoperationalitemsaregroupedintooperationalsectionsEachsectioniscodifiedbya/anA.numberB.abbreviationC・1etterD.number,abbreviationandletter77.UnderMARPOLCodetheshiptowhichitapplieshastocarry・A.anIntemationalShipSecurityCertificateB.anInternationalOilPollutionPreventionCertificateC.aSafetyManagementCertificateD・anInternationalBallastWaterManagementCertificate78.Whichoneisnotthe"cleargrounds'、foramoredetailedinspection?A.lhemasterandthechiefengineerareunabletocommunicateeffectivelyB.seriouscorrosiononlhehullC・damagedsanitarypumpD.onepagemissingintheoilrecordbook79."InsufficiencyofmanningorinsufficiencyofcertificationofseafarersnisanidentificationofaA.substandardshipB.standardshipC・over-siandardshipD・referenceshipSO.STCW78/95ConventionshallapplytoseafarersonboardseagoingshipentilledtoflytheflagofaParty.A.servedB・servingC・surveyedD・surveying81.Theofficerinchargeoftheengineeringthewatchtotherelievingofficerifthereisreasontobelievethatthelatterisobviouslynotcapableofciirryingoutthewatch-keepingdutieseffectively.A.shalllakeoverB.shallnottakeoverC.shallbandoverD.shallnothandover82.Whentheordergivenbybridgemayhavebadresults,thedutyengineershouldA.informthecaptainforafurtherconsiderationB.informthecaptain,andnotperformitC.stoptheM/Eimmediately,andtheninformthechiefengineerD・stoptheM/Eimmediately,andtheninformthecaptain83.Thescuppersshouldbeplugged・A.onlyiffixedcontainmentisnotusedB.onlyifportablecontainmentisnotusedC.onlyiffixedcontainmentdrainsareopenD.wheneverthevesselisbeingbunkered84.Ifitbecomesnecessarytopumpbilgeswhileavesselisinport,whichofthefollowingprocedures shouldbefollowed?A.PumponlyifthedischargeisledtoashoretankorbargeB.PumponlyduringlhehoursofdarknessC・PumponlyontheoutgoingtideD・Pumponlyasmuchasisnecessary81.TheSOLASconventionprescribesthatinthefirefightingdrillthedutyengineershouldstartlhefirepumpandsupplydeckwaterinminute(s)A.5B.3C.2D.182.AccordingtotheISMCODE,the“person"inlhephrase“lodesignateapersonorpersonsashorehavingdirectaccesstothehighestlevelofmanagementMrefersto.A.lhemanageroftheshippingcompanyB.lhemasteroftheshipC.thedesignatedpersononboardshopD.thedesignatedpersonashore83.Inordertostrengthenmiiritimesecurityandpreventandsuppressactsofterrorismagainst shipping,anew,comprehensivesecurityregimetorinternationalshippingwassettoenterintoforceinJuly2004.Thenewregimeis・A.ISMCodeB.ISPSCodeC.FSSCodeD.IBCCCode81.Inthevoyage,whencarryingoutabandonshipdrill,shouldbetesteverytime.A.lheemergencylightingsystemformusterandabandonshipB.air/oilemergencyshul-downC・M・E・emergencyoperationD・main/auxiliarysteeringgearchanging二・关联题（关联题干下有4个小题，每小题4个选项）第-•组Scavengeportinspectionprovidesusefulinformationabouttheconditionofcylinders,pistons,andrings,atlowexpense・Theinspectionconsistsofvisuallyexamininglhepiston,lheringsandthelowerpartofthecylinderliner,directlythroughthescavengeairportsToreducetheriskofscavengeboxfire,removeanyoilsludgeandcarbondepositsinthescavengeairboxandreceiverinconnectionwiththeinspection.Theportinspectionshouldbecarriedoutatthefirststopafteralongvoyage,e.g.byanchoringifpossible,toobtainthemostreliableresultwithregardtolheeffectivenessandsufficiencyofthecylinderlubricationandthecombustioncycle（completeorincomplete）Amisleadingresultmaybeobtainediftheportinspectioniscarriedoutafterarrivalatharbor,sincemanoeuvringiolhequayandlow-loadrunning,e.g・riverorcanalpassage,requiresincreasedcylinderoildosage,i.e.lhecylindersareexcessivelylubricaied.Further,duringlowload,thecombustioncclemightnotbeaseffectiveandcompleteasexpected,duetotheactualfueloilqualitiesandservice（running）conditionofthefuelinjectionequipment.Ilishighlyrecommendedtotakethisinformationintoconsideration.於）.Thecomponentsofanengineinvolvedinnormalscavengeportinspectioncomprise.A・①②B.®®@®C.②③D.®thepiston©pistonrings③（helowerpartoflhecylinderliner@thefuelinjector90.Ifthescavengeboxhadtoomuchoilsludgeandcarbondeposits,whatwouldoccur?A.excessivecylinderoilconsumptionB.lhescavengeboxfireC.lhecrankcaseexplosionD.excessivewearoflhecylinderliner91.Inoldertoobtainthemostreliableresultwithregardtotheeffectivenessandsufficiencyofthecylinderlubricationandlhecombustioncycle,whenshouldthescavengeportinspectionbecarriedout?A.atthefirststopafteralongvoyage,e.g.byanchoringifpossibleB.atthefirstslopafterarrivalatharborC.atthefirstslopafterlowloadrunningD.atthefirststopafterpassingriverorcanalpassage92.Underwhatconditionthatthescavengepotinspectioncan^ainamisleadingresult?@afterpassedthroughPanamaCanal©aftergotalongsideshanghaiquay©afterarrivalshanghairoadstead（夕卜锚地）A.②③B.®®C・①②③D①第二组Currentregulationswithrespecttothedischargeofoilywatersetlimitsofconcentration15partspermillion.Amonitorisrequiredtomeasurethesevaluesandprovidebothcontinuousrecordsandanalarmwherethepermittedlevelisexceeded・Theprincipleusedisthatofultra-violetfluorescence・Thisistheemissionoflightbyamoleculethathasabsorbedlight.Duringlheshortintervalbetweenabsorptionandemission,energyislostandlightofalongerwavelengthisemitted・Oilfluorescesmorereadily（hanwaterandthisprovidesthe meansforitsdetection. Asampleisdrawnofffromtheoverboarddischargeandpassesthroughasamplecell・Anultra-violetlightisdirectedalthesampleandthefluorescenceismonitoredbyaphotoelectriccellWhereanexcessivelevelofcontaminationisdelectedanalarmissoundedanddivertingvalvesareoperated・Thedischargingliquidisthenpassedtoasloptank.90.Thepassageismainlyabout・A.oilywaterseparatorB.currentregulationsrelatedtooilpollutionC・oilinwatermonitorD.theprincipleofultra・violetfluorescence91.Amonitorcanobtainallofthefollowingfunctionsexcept・A.measuringoilcontentvaluesB.providingcontinuousrecordsC.ioweringtheoilcontentbelow15ppmD.providinganalarmunitwarningoflevelsofdischargeinexcessof15ppm92.Fromthepassage,wecanlearnthattheultra-violetfluorescenceisakindofA.oilsampleB・lightC・photoelectriccellD・alarmunit93.AsampleisdrawnofTfromandpassesthroughasamplecellA.bilgewaterB.dischargeofoilseparatorC.sloptankD.dischargeofoilywaterseparator45轮机英语的答案I-5ABDCDII-15DCCCC21-25CAADA31-35CCBDA41-45CCDBB51-55BBDCB61-65ADBAC71-75DABDC81-8889-926-10ADBAB16-20BCDBB26-30DDAAC36-40DDBBC46-50DDBCB56-60ADBDB66-70ADDDB76-80DBCABDADAADBA〜〜〜〜93-96~—〜