中级汽车修理工试题(含答案)（intermediate mechanic test questions (including answers)）

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1、中级汽车修理工试题5(含答案)（Intermediatemechanictestquestions5(includinganswers)）Nationalvocationalqualificationexamination-intermediateautomechanicssimulationexam5Theredansweristhecorrectanswer,1.Thesizeofthedistancebetweenthetwoadjacentlinesofthemeasuringinstrument(suchasthepercentagetable)willaffecttheestim

2、atedreading().precision2.Thefatigueofpartsresultsinthechangeofitsperformance.mechanics3.Bearingroller()iscausedbyfatiguewearonthesurface.pitting4.Whentheshaftpartsaretired,theparts()willbecausedseriously.Thefracture5.Inordertoimprovethesurfacehardnessoftheparts,thesurfaceofthepartscanbeheattreated,

3、andthefollowingisnottheheattreatmenttechnology().ShotblastSteelcanbechangedbyheattreatment.MechanicalpropertiesofFatiguereferstothesuddenbreakingofmetalpartsundertheactionofthemetalparts.Cyclicloading8.Heattreatmentcanchangetheperformanceofsteelinside().ThestructureoftheorganizationWhentheengineisw

4、orking,theoilisundertheactionoftheoilpump,andthefilterisdrivenoutbythesuctionpump,andmostoftheoilis()tothemainoilchannel.strainerThegasolineengineconsistsofcrankconnectingrodmechanism,gasdistributionmechanism,fuelsupplysystem,ignitionsystem,coolingsystem,lubricatingsystemand().StartthesystemThenorm

5、aloilconsumptionoftheengineisapproximately()liters/100km.0.1~0.512.Toensurethattheengineworksundernormaltemperature,thecomponentsofgooddynamicandeconomicperformanceare().Thecoolingsystem13.Thecomponentthatpassestheheatfromtheenginewaterjackettotheairis().Theradiator14.Iftheignitionsystemfailstoigni

6、te,theECUwill().Stopfuelinjection15.Thepartthatcontrolstheflowdirectionandflowthroughtheradiatoris().thermostat16.Theinstallationoftheengine'sthermostatisin().ThecylindercoverstheoutletTheballnutassemblyshouldbereplacedwhentheendclearanceofthecircularballtypesteeringscrewandballnutexceeds()mm.0.12O

7、neofthereasonsfortheshiftofthesteeringsystemis().Beforethebeamistoosmall19.()todeliverlongitudinalforce,lateralforceandtorque,andtoensurethatthecarwheelshaveacertainmovementpatternrelativetotheframeorbody.g