4149道题轮机英语题库答案和注解

total编号问题选择A选择B选择C选择D答案1“Beforedisconnectingtheoilpipe,wouldyouflushtheoilretainedinthepipe________?”askedtheoilbargeowner.byusingoffreshwaterwithcompressedairbyusingofseawaterwithchemicalcompoundB2“Standbyanengine”means________.“preparetostoptheengine”“assembleanengineonitsbedplate”“makeanenginereadyforstarting”“dismantleanengine”C3A________isthefoundationoftheengine,withoutthesupportofwhichtheshaftalignmentinparticular,andenginestructureasawhole,wouldinevitablybelost.framebedplatecylinderlinerB4________arecommonlyusedinmechanical-hydraulicgovernortosenseenginespeeds.DoorsBulksFlyweightsFlywheelsC5________aregenerallyformedintheframeofthebothin-lineandVeeenginestogivemaintenanceaccesstothecrankshaftmainandconnectingrodlargeendbearing.DoorsAspirategauzerCouplingBlindA6________arrangementshavelowtemperatureairandhightemperatureexhaustgaspassingthroughadjacentports,causingtemperaturedifferentialproblemsforthelinermaterial.LoopscavengeGrossscavengeUniflowscavengeSuperchargeA7________becameoval,itshouldbemachined.Theupperhalfofcross-headbearingThecross-headpinThecross-headbearingThecross-headguideplateB8________deviceisprovidedtopreventstartingairfrombeingadmittedtothecylinderbeforethereversingiscompleted.AnautomaticAtransmissionAself-regulatingAninterlockingD9________fueloils________lubricatingoilsrequiretreatmentbeforepassingtotheengine.Both/andNeither/norEither/orBoth/orA10________issometimesusedforpistoncoolingsinceleaksintothecrankcasewouldnotcauseproblems.DieseloilHydraulicoilLubeoilMineraloilC11________istheremovalofexhaustgasesbyblowinginfreshair.GasexchangeChargingScavengingSuperchargingC12________isusedforcylinderandcylinderhead,thesaltwaterisusedforcoolingthelubricatingoil,thefreshwaterinthecoolersandthechargingairintheaircooler.ThefueloilThelubeoilTheseawaterThefreshwaterD13________maybethefirstpossiblecausewhichmakestheenginetolosepowerorslowdownwhenitisrunning.HotbearingStartingvalvesUnequaldistributionofloadExcessivecrankshaftclearanceA14________ofanenginecrankshaftcanbedetectedbymeasuringdeflectionsofcrankwebsforeachunitoftheengine.MisalignmentLengthStrengthStressesA15________oftheA-framesthereisastrongcastironframecalledthescavengingairbox.AtthetopAtthebottomInthetopInthebottomA16________pistonshavelowinertiaandhighcoefficientofthermalexpansion.CastironCaststeelForgedsteelAluminumD17________scavengingmeansbothexhaustportsandscavengingportsarearrangedtothesameside.UniflowCrossLoopStraightC18________shouldnotundertakeanytaskwhichwillinterferewiththesupervisiondutiesrelatingtothemainmachineryandassociatedequipment.ThewatchkeepingpersonnelThechiefengineerThepersononabunkerbargeAnyoftheaboveA19________tappetclearancewillcausetheexhaustvalvetoopenearlyandcloselateincycleandwillincreaseitsmaximumlift.ExcessiveInsufficientCorrectNoneoftheaboveB20________tappetclearancewillcausetheexhaustvalvetoopenlateandcloseearlyincycleandwillreduceitsmaximumlift.CorrectInsufficientExcessiveNoneoftheaboveC21________tappetclearancewillcausetheexhaustvalvetoopenlateandcloseearlyincycleandwillreduceitsmaximumlift.CorrectInsufficientExcessiveNoneoftheaboveiscorrect.C22________thecylinderwillcontainagreatweightofairandwillbecapableofburningagreatquantityoffuel.AtthebeginningofthecompressionstrokeAtthebeginningofthesuctionstrokeAttheendoftheworkingstrokeAttheendoftheexhauststrokeA23________thesuperchargepressureis,________poweranenginedevelops.Thehigher/themoreHigher/moreHigher/littleThehigher/thelessA24________deviceisprovidedtopreventstartingairfrombeingadmittedtothecylindersbeforereversingiscompleted.AnautomaticAtransmissionAninterlockingAself-regulationC25________isnotproperlysetthuscausingeitheradvancedorretardedfiring.ApistonAfuelinjectionpumpAfeedwaterpumpAlubeoilpumpB26________meansthatbothexhaustportsandscavengingportsarearrangedonthesameside.UniflowscavengeCrossscavengeLoopscavengeStraightscavengeC27________rodsarenotinproperconditionsothattoomuchfuelissuppliedtothecorrespondingcylinder.PistonSoundingRegulatingConnectingC28________shows1.2meterandthespecificgravityoftheoilis0.96.Accordingtothemeasuringscale,thatmakes150tons.ThepistonrodThepushrodThesoundingrodTheconnectingrodC29________allowsforexpansionandwatermakeupinthewatercoolingsystem.AtoptankAheadtankAheadvalveAdraintankB30________attheendofthedistributionpipeensuresthatadequatepressureismaintainedbythepump.AreliefvalveAnalarmApressuregaugeAnon-returnvalveB31________isusedforwashinganddrinking.TheballastsystemThesaltwatersystemThebilgesystemThedomesticsystemD32________providethewatertothepistons.PneumaticpiesHydraulicpipesTelescopicpipesOperatinggaspipesC33________arefittedintheexhaustsystemandfacilitatechargeremovalandscavengingineachcylinder.DiffusersCompressorsSteamboilersSootblowersA34________areformedbyabrasiveparticlesenteringthebearingandscoringtheshaft.GroovesRecessesRidgesNipsA35________aremountedonandboltedtothebed-platecrossgirders.ThecrankshaftThecrankcaseTheguide-waysTheframesD36________isaprecautionwhichcontributestoavoidingtroubleunderoperat