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1、Volume(A)一、选择题：【ChoiceQuestion；语句用法（Syntax）；每题1分共20分】1、Thefour-strokecycleoperatesinwhichorder______.A.intake,exhaust,power,compressionB.intake,power,compression,exhaustC.intake,compression,power,exhaustD.intake,power,exhaust,compression2、Withthepistonatth
2、ebottomofthecylinder,the________valve_______toallowtheburnedexhaustgastobeexpelledtotheexhaustsystem.A.intake,closesB.exhaust,closesC.exhaust,opensD.intake,power3、Acarengine'sjobisto________A.Convertfuelintoheat.B.Convertfuelintomotion.C.Convertfuelintoexh
3、aust.D.Convertfuelintopneumatics.4、Whenthecrankshaftcompletesfourrevolutionsforafour-cycleengine,eachcylinderwillhavegonethrough________intakestroke(s).A.oneB.twoC.threeD.four5、________isthelife-bloodoftheengine.A.GasB.WaterC.OilD.Lubricant6、Whatisthecoreo
4、facar'sengine?__________A.Thesparkplugs.B.Theexhaust.C.Thecylinder.D.TheSpindle.7、Whatdeterminesthesizeandtheplacementoftheengineblock?A.Thenumberofsparkplugs.B.Thenumberofpistons.C.Thenumberofcylinders.D.Thenumberofshafts.8、Inthestandardengine,eachcylinde
5、rhas___________.A.fourvalvesB.twovalvesC.onevalveD.threevalves9、Acrankshaft'sjobinanengineisto______.A.deliverfueltothecylinders-10-B.keepcylinderheadsinplaceC.changelinearmotionintorotationalmotionD.delivertorquetothefrontwheels10、The___________systemonan
6、internalcombustionengineprovidesthesparkthatignitesthecombustibleair/fuelmixtureinthecombustionchamber.A.startingB.fuelC.ignitingD.transmission11、The___________isadeviceusedtoprovidesmoothengagementanddisengagementofengineandtransmission.A.clutchB.differen
7、tialC.finaldriveD.cylinder12、Flywheel_________tendstokeepitrotatingataconstantspeed.A.inertiaB.qualityC.weightD.speed13、Thiscomponentisanelectronicallycontrolledvalvethatiscapableofopeningandclosingmanytimespersecond;Andwhatisthenameofthecomponent?A.Theoil
8、pressuresensor.B.Afuelinjector.C.Asparkplug.D.Thetransmissioncase.14、Whyisoilsuchanimportantpartofacar'sengine?A.Italwayskeepstheenginecooling.B.Itkeepsthesteeringwheelturningsmoothly.C.Itkeepsthepistonsandbe
