《汽车工程专业英语》期末试卷.doc
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一、选择题
1、Thefour-strokecycleoperatesinwhichorder__C__.
A.intake,exhaust,power,compression
B.intake,power,compression,exhaustC.intake,compression,power,exhaust
2、Withthepistonatthebottomofthecylinder,the___C____valve___________toallowtheburnedexhaustgastobeexpelledtotheexhaustsystem.
A.intake,closesB.exhaust,closesC.exhaust,opens
3、Acarengine'sjobisto___B__
A.ConvertfuelintoheatB.ConvertfuelintomotionC.Convertfuelintoexhaust
4、Whenthecrankshaftcompletesfourrevolutionsforafour-cycleengine,eachcylinderwillhavegonethrough____B____intakestroke(s).
A.oneB.twoC.Three
5、___C___isthelife-bloodoftheengine.
A.gasB.waterC.Oil
6、Whatisthecoreofacar'sengine___C___
A.ThesparkplugB.exhaustC.Thecylinder
7、Whatdeterminesthesizeandtheplacementoftheengineblock?
____C____
A.ThenumberofsparkplugsB.ThenumberofpistonsC.Thenumberofcylinders
8、Inthestandardengine,eachcylinderhas___A___.
A.fourvalvesB.twovalvesC.onevalve
9、Acrankshaft'sjobinanengineisto___C___
A.Deliverfueltothecylinders
B.KeepcylinderheadsinplaceC.Changelinearmotionintorotationalmotion
10、The_____C___systemonaninternalcombustionengineprovidesthesparkthatignitesthecombustibleair/fuelmixtureinthecombustionchamber.
A.startingB.fuelC.igniting
二、填空题
1.Today’saveragecarcontainsmorethan15000separate,individualpartsthatmustworktogether.Thesepartscanbegroupedintofourmajorcategories:
body,engine,chassisandelectricalsystem.
2.Thedirectionmotionofvehicleiscontrolledbyasteeringsystem.Abasicsteeringsystemhas3mainparts:
steeringcontrolmechanism,steeringgearandsteeringlinkagemechanismwhichconnectingwheelsandsteeringgear.
3.Thelocationofthedrivingaxledetermineswhetherthevehicleisclassifiedasrear-wheel drive,front-wheel drive,four-wheel driveandall-wheeldrive.
4.Themodernclutch9isasingleplate,drydisc.Itconsistsoffivemajorparts:
flywheel,clutchdisc,pressureplateassembly,throw-outbearing,andclutchlinkage.
5.Therearetwotypesofuniversaljoints--crosstypejointandconstantvelocityuniversaljoint.
6.Thethreetypesofbrakingsystemsareinusetoday:
servicebrakingsystem,parkingbrakingsystemandadditionalretarding-brakingsystem.
7.Ontoday’scars,twotypesofsteeringsystemscommonlyareusedtoprovidesteeringcontrol:
manualsteeringsystemsandpowersteeringsystems.
8.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。
3.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。
3.5.1BasicPartsofSteeringSystem
4.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。