《汽车工程专业英语》期末试卷

一、选择1、Thefour-strokecycleoperatesinwhichorder__C__.A.intake,exhaust,power,compressionB.intake,power,compression,exhaustC.intake,compression,power,exhaustWiththepistonatthebottomofthecylinder,the___C____valve___________toallowtheburnedexhaustgastobeexpelledtotheexhaustsystem.intake,closesB.exhaust,closesC.exhaust,opens3、Acarengine'sjobisto___B__A.ConvertfuelintoheatB.ConvertfuelintomotionC.ConvertfuelintoexhaustWhenthecrankshaftcompletesfourrevolutionsforafour-cycleengine,eachcylinderwillhavegonethrough____B____intakestroke(s).oneB.twoC.Three5、___C___isthelife-bloodoftheengine.A.gasB.waterC.OilWhatisthecoreofacar'sengine___C___ThesparkplugB.exhaustC.Thecylinder7、Whatdeterminesthesizeandtheplacementoftheengineblock?____C____A.ThenumberofsparkplugsB.ThenumberofpistonsC.ThenumberofcylindersInthestandardengine,eachcylinderhas___A___.fourvalvesB.twovalvesC.onevalve9、Acrankshaft'sjobinanengineisto___C___A.DeliverfueltothecylindersB.KeepcylinderheadsinplaceC.ChangelinearmotionintorotationalmotionThe_____C___systemonaninternalcombustionengineprovidesthesparkthatignitesthecombustibleair/fuelmixtureinthecombustionchamber.startingB.fuelC.igniting二、填空题1.Today’saveragecarcontainsmorethan15000separate,individualpartsthatmustworktogether.Thesepartscanbegroupedintofourmajorcategories:body，engine，chassisandelectricalsystem.Thedirectionmotionofvehicleiscontrolledbyasteeringsystem.Abasicsteeringsystemhas3mainparts:steeringcontrolmechanism，steeringgearandsteeringlinkagemechanismwhichconnectingwheelsandsteeringgear.Thelocationofthedrivingaxledetermineswhetherthevehicleisclassifiedasrear-wheel drive，front-wheel drive，four-wheel driveandall-wheeldrive.Themodernclutch9isasingleplate,drydisc.Itconsistsoffivemajorparts:flywheel,clutchdisc,pressureplateassembly,throw-outbearing,andclutchlinkage.Therearetwotypesofuniversaljoints--crosstypejointandconstantvelocityuniversaljoint.Thethreetypesofbrakingsystemsareinusetoday:servicebrakingsystem,parkingbrakingsystemandadditionalretarding-brakingsystem.Ontoday’scars,twotypesofsteeringsystemscommonlyareusedtoprovidesteeringcontrol:manualsteeringsystemsandpowersteeringsystems.Abrakingsystemconsistsofanenergy----supplyingdevice,acontroldevice,atransmissiondeviceandthebrake.三、将缩写写出英文全称、中文意思。1、CVT：ContinuouslyVariableTransmission中译：无级变速器2、EFI：ElectronicFuelInjection中译：电子燃油喷射3、TPS：ThrottlePositionSensor中译：节气门位置传感器4、ABS：Anti-lockBrakingSystem中译：防抱死制动系统5、CAN：ControllerAreaNetwork中译：控制器区域网络6、EGR：Exhaust-gasrecirculation中译：废气再循环7、EPS：ElectronicPowerSteering中译：电动助力转向系统8、MAF：MassAirFlow中译：空气流量计9、ASR：AccelerationSlipRegulation中译：驱动（轮）防滑系统10、CACS：ComprehensiveAutomobileControlSystem中译：汽车综合控制系统四、翻译TranslatethefollowingsentencesintoChinese。1.Theinternalcombustionengineismostcommon:thisobtainsitspowerbyburningaliquidfuelinsidetheenginecylinder.Therearetwotypesofengine:gasolineanddiesel.Bothenginesarecalledheatengines;theburningfuelgeneratesheatwhichcausesthegasinsidethecylindertoincreaseitspressureandsupplypowertorotateashaftconnectedtothepowertrain.内燃机是最常见的，其动力来自气缸里液体燃料的燃烧。发动机有汽油机和柴油机两种，都称为热机。燃料燃烧产生热量，气缸内气体压力升高，从而提供动力，带动连接传动系的轴旋转。2.Theengineactsasthepowerunit.Theinternalcombustionengineismostcommon:thisobtainsitspowerbyburningaliquidfuelinsidetheenginecylinder.Therearetwotypesofengine:gasoline(alsocalledaspark-ignitionengine)anddiesel(alsocalledacompression-ignitionengine).Bothenginesarecalledheatengines;theburningfuelgeneratesheatwhichcausesthegasinsidethecylindertoincreaseitspressureandsupplypowertorotateashaftconnectedtothepowertrain.发动机作为动力设备，常见的类型是内燃机，其原理是通过发动机缸内的液体燃料燃烧而产生能量。发动机可分为两类：汽油机（点燃式）和柴油机（压燃式），都属于热力发动机。燃料燃烧产生热量使缸内气压上升，产生的能量驱动轴旋转，并传递给动力传动系。Thebasicsteeringsysteminmostcarsisthesame.Thesteeringgearofsteeringboxistheheartofthesteeringsystem.Thisusuallyisnexttotheengine.Ashaftextendsfromthebackofthesteeringgear.Thisshaftisconnectedtothesteeringcolumnorsteeringshaft.Thesteeringwheelisatthetopofthesteeringcolumn.Anothershaftcomesfromthebottomofthesteeringgear.Thisshaftconnectstothearms,rods,andlinks.Thispartsassembly,calledthesteeringlinkage,connectsthesteeringgeartothepartsatthewheels.Thewheelsandtiresmounttothesteeringknuckles.Theknucklesarepivotedatthetopandbottom.Thus,thewheelsandtirescanturnfromsidetoside.在大多数汽车转向系统基本是相同的。转向箱转向齿轮转向系统的核心。这通常是旁边的发动机。轴与转向齿轮的背面延伸。该轴连接到转向柱和转向轴。方向盘在转向柱的顶部。来自另一个轴的转向器底部的。该轴连接到臂，杆，和链接。这零件装配，称为转向传动机构，与转向齿轮零件在车轮。车轮和轮胎安装在转向节。指节铰接在顶部和底部。因此，车轮和轮胎可以从一边到另一边。3.5.1BasicPartsofSteeringSystem4.Intherecirculatingballsteeringgear,thewormshaftistheinputshaft.Thewormshaftconnectstothesteeringcolumninsuchawaythatamechaniccanremovethesteeringgearorsteeringcolumnindependentlyofoneanother.Thesectorshaft(alsocalledthepitmanshaft)isliketheoutputshaftofthesteeringgear.Themainpartsofthesteeringgeararetheballs,ballnut,andthegearteethontheballnut.Asthewormshaftturns,theballsmovetheballnutupanddownalongthewormshaft.Thisturnsthesectorshaft,sincethesectorteethmeshwiththeballnutteeth.Thesectorshaftisconnectedthroughsteeringlinkagetothefrontwheels.在循环球转向齿轮，蜗杆轴输入轴。转向螺杆与转向柱在这样一种方式，一种机械可以拆下转向机、转向柱彼此独立的。扇形轴（也叫摇臂轴）就像舵机的输出轴。转向齿轮的主要部分是球，球螺母，螺母和球齿。作为转向螺杆转动时，球移动球螺母在蜗杆轴上下。这把扇轴，由于扇形齿与滚珠螺母齿啮合。扇形轴通过连接到前轮转向机构。