关联题91篇注解版解析Word格式.docx
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A.beforetheengineisstartedB.whentheengineisrunning
C.aftertheenginehasjustbeenstoppedD.whensomethinghasgonewrongwiththeengine
注：
根据文章来看，调节阀间隙的最好时间是在发动机启动之前。
2.Therollerandthetappetassemblyarelubricatedbymeansof_____.
A.themainlubesystemB.thesecondaryoilsystem
C.thespecialpumpingsystemD.theturbineoilsystem
滚轮和挺杆组件借助于主润滑系统润滑。
3.AccordingtothePassage,thevalvedrivemechanismdoesnotinclude_____.
A.tappetrollersB.pushrodsC.nodularcastironD.yokesandguidepins
根据文章来看，阀驱动机构不包括球墨铸铁。
（包括杆滚轮、顶杆、吊梁和导销）
4.Toclosevalvestightly,whichclearanceshouldbeinspectedaccordingtothemaintenanceschedule?
A.Theonebetweenthecamandthetappetroller.
B.Theonebetweenthepushrodsandthebanjoints.
C.Theonebetweentherockerarmsandtheyoke
D.Theonebetweentwotubularpushrods.
依据保养清单，要紧密的关闭阀件，应检查摇臂和吊梁之间的间隙。
AACC
Passage2
Chargeaircooler
Theengineisequippedwithachargeaircooler.Theinserttypechargeaircoolerismountedinaweldedcasing（airtrunk）.Thetrunkisboltedtotheengineblock.
第1题Standardisatwo-stagecoolermounted.Thefirststage,throughwhichthechargeairflows,iscooledwithwaterfromtheHTcoolingsystemandcooksthechargeairtillapprox.90~100oC.ThesecondstageissuppliedwithwatercomingfromtheLTwatersystemandcooksthechargeairfurthertilltherequiredtemperatureofapprox.50oC.第2题（B）BycontrollingthewaterflowthroughtheLTcoolerthechargeairtemperaturecanbekeptconstantattherequiredtemperature.
Thecirculatingcoolantwatershouldalwaysbeunderpositivepressureandshouldbeascleanaspossible.Theoperatingairtemperatureshouldbemaintainedbycontrollingthecoolantinlettemperature.
Whilsttheengineisrunningtheairandcoolanttemperaturesandpressuresatinletandoutletshouldbecheckedandloggedperiodically.第3题Variationsfromnormalindicatefaultsdevelopingsuchasfoulingofthefilmplatesorobstructionofthewatertubes.
第4题Checkdaily,duringoperationoftheengine,theworkingofthetelltaleholeatthefreeendofthechargeairreceiver.Thefunctionofthisholeistoinformtheoperatorthepresenceofwaterinthechargeairreceiver.Undernormalconditiononlycompressedairshouldescapefromthishole.
1.AccordingtothePassage,theexpression"
HT"
probablymeans_____.
A.HIGHTANKB.HIGHTEMPERATUREC.HEATTRANSMISSIOND.HEATTRANSFER
根据文章来看,"
的意思是：
hightemperature，高温。
2.Inordertomaintainthechangeairtemperatureweshouldcontrol_____.
A.thecoolantinlettemperaturecomingfromthefirststagecooler
B.thecoolantflowcomingfromthesecondstagecooler
C.thecoolantoutlettemperaturecomingfromthesecondstagecooler
D.thecoolantflowcomingfromtheflintstagecooler
为维持增压空气的温度，我们应控制来自第二级冷却器的冷却剂流量。
3.Thechargeairtemperaturedepartingfromnormalmayindicatethat_____.
A.condensatecanbeformed
B.onlycompressedairshouldescapefromthetelltale
C.thefilmplatesarebecomingdirtyorthewatertubesareblockedbyscale
D.coolingwatermayhavebeencarriedintothecylinders
增压空气温度偏离正常表明镀膜变脏或水管被水垢堵塞。
4.Thefunctionofthetelltaleholeisto_____.
A.detectwhethercompressedairhasescapedfromthehole
B.controlthecoolantinlettemperature
C.determinewhetherthecoolantwaterisunderpositivepressure
D.informtheoperatorthepresenceofwaterinthechargeairreceiver
警报孔或监视孔的作用是同志作业员扫气箱中有水。
telltalehole监视孔，指示孔，警报孔；
chargeairreceiver.扫气箱
BBCD
Passage3
Startingairsystem
Theengineisstartedwithcompressedairofmax30bar.Minimumpressurerequiredis15bar.ApressuretransmitterPI301mountedonthestartingairlinebeforethemainstartingvalvehasanindicatorintheinstrumentpanel.第3题Thesupplylinefromthestartingairbottlesisprovidedwithanonreturnvalveandadrainvalve.
Thesolenoidvalveiselectrical（remotecontrol）ormanual（ontheengine）operatedandsendafteractivationapilotairsignaltothemainstartingairvalve.Interruptionofthecontrolairdosesthemainstartingairvalve.
第1题（Afterthemainstartingairvalveisactivatedtheairflowsthroughtheflameattesterstothestartingairvalvesinthecylinderheads.Partoftheairflowsviathestartingairdistributortoeachofthestartingairvalvesinthecylinderheads.Thestartingairdistributorcontrolsthetimingofopeningandclosingofthestartingairvalves.
第2题Onthemomentthemainstartingairvalveisoperatedalsothegovernorboosterisenergized.）Themainstartingairlineisprovidedofasafetyvalve.第4题Interlockvalveisasafetydevicetoavoidanenginestartwithengagedturninggear.
1.Astheengineisstartedwithcompressedair,thecorrectsequenceofthefollowingdevicesbeingactivatedis_____.
（1）solenoidvalve;
（2）startingairvalve;
（3）startingairdistributor;
（4）mainstartingairvalve;
（5）governorbooster.
A.
（1）,（5）,（4）,
（2）,（3）B.
（1）,（4）,（5）,（3）,
（2）C.
（1）,（4）,（3）,
（2）,（5）D.（4）,（3）,
（1）,
（2）,（5）
从括号部分总结出，发动机由压缩空气启动时，装置被触发的顺序是：
电磁阀、主启动阀、调速器升压器、启动空气分配器、启动空气阀。
2.Thesentence"
thegovernorboosterisenergized"
（paragraph3）probablymeans_____.
A.thegovernorboosterissuppliedwithelectricpower
B.hydraulicoilispumpedintothegovernorbooster
C.thegovernorstartstoworkbeforestartingtheengine
D.thegovernorboosterissuppliedwithpressurizedairbeforestartingtheengine
句子“调速器升压器被提供能量”大概意思是：
启动发动机之前，调速器升压器被提供增压空气。
3.Whichofthefollowingcomponentsareattachedtotheairbottles?
A.apressuretransmitterPT301B.anon-returnvalveandadrainvalve
C.asolenoidvalveD.astartingairdistributor
答案应为B。
连到空气瓶的部件是：
止回阀和放残阀。
4.Whentheengineisengagedwithturninggear,_____cankeeptheenginefromstarting
A.thecontrolairB.thesolenoidvalveC.themainstartingairvalve
D.theinterlockvalve
发动机由盘车机啮合时，连锁阀可防止发动机启动。
BDBD
Passage4
Startingairdistributor
第1题Thestartingairdistributorisofthepistontypewithprecisionmachinedinterchangeableliners.Thelinersaswellasthepilotpistonsareofcorrosionresistantmaterials.第3题Thepilotpistonsarecontrolledbyacamconnectedtothecamshaftend.Whenthemainstartingvalveopens,thepilotpistonsaxepressedontothecam,wherebythepilotpistonfortheenginecylinderwhichisinstartingpositionadmitscontrolairtothemainpistonofthestartingvalve.第2题Thestartingairvalveopensandadmitscompressedairintotheenginecylinderforcingthatpistondown.Shortlybeforetheexhaustvalvesareopenedthepilotvalveinterruptsthecontrolairtothestartingairvalveandstartingairtothatcylinderisstopped.Thisprocedurewillberepeatedaslongasthemainstartingvalveisactivatedoruntiltheenginespeedissohighthattheenginefires.Afterthemainstartingairvalveisclosed,themainstartingairsystemisde-aerated,thepressuredropsquicklyandthespringswillliftthepilotplungersoffthecam.Thismeansthatthepilotplungerstouchthecamonlyduringthestartingprocessandthuswearisinsignificant.
Ifapilotlineriswornout,pressitout.Itmaybenecessarytoheatthedistributoruptillabout
200oCasLoctiteisusedforfixingandsealing.
1.AccordingtothePassage,thelinersofthestartingairdistributor_____.
A.canbereplacedwhenwornoutB.aremadeofheatresistantmaterials
C.areweldedpreciselyD.arewornouteasilyduringthestartingprocess
根据文章来看，启动空气分配器的衬套磨坏时，可更换。
changeable可更换的
2.Duringthestartingprocess,when_____,themainstartingairvalveisclosed.
A.theexhaustvalvesinthestartingcylinderareopened
B.thepilotairtothestartingairvalveisstopped
C.theenginespeedreachesfirespeed
D.thepilotpistonsarepressedontothecam
启动过程中，当发动机转速达到发火转速时，主启动空气阀关闭。
3.Whensomecylinderoftheengineadmitscompressedairintoit,thepilotpistonofthestartingairdistributorshouldbe_____
A.separatedfromthecamB.pressedontothecam
C.liftedoffthecamD.pressedontothecamrepeatedly
当部分汽缸允许压缩空气进入时，启动空气分配器的先导活塞被压到凸轮上。
4.FromthePassageweknowthat"
Loctite"
isprobably_____
A.atypeofgasketB.akindoflubricantC.agluebondD.ananti-corrosionadditive
从文章当中我们了解到，"
可能是一种粘合剂。
gluebond;
粘合剂
ACBC
Passage5
Theengine'
ssupportingelementconsistsofabedplateandframe.Thebedplatecanbeofweldedoreastdesign.第4题（A）Theframeismadeofcastiron.第2题Theturbochargermounting,thehousingf
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