机修钳工理论知识试卷（machine repair bench theory knowledge test paper）

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1、机修钳工理论知识试卷（Machinerepairbenchtheoryknowledgetestpaper）----------------------------------------------Page1----------------------------------------------ThetheoryofmachinerepairbenchtheoryknowledgepaperThenameApositionlineisameaningitem1.Testtime:90minutes.2.Pleasefillinyourname,admissionticket

2、andthenameofyourunitinthesealoftheexaminationpaperfirst.this3.Pleasecarefullyreadtheanswersofvariousquestionsandfillinyouranswersintheprescribedposition.4.Don'tscribbleonthetestpaperanddon'tfilloutirrelevantcontentinthelabelarea.One,two,three,four,five,sixgeneralpointsscoreThenamesuperThesurn

3、ameGetpointsGradingpeoplequasi1.Fillintheblanks(questions1~20).Pleasefillintheblankswiththecorrectanswers.1.Theverniercaliperiscomposedoftheinsideoftheblade,theoutermeasuringclawandthedepthruler.Don't2.Whentheworkingtemperatureislow,thelubricantwithlowviscosityshouldbeselected;Whentheworkingt

4、emperatureishigh,itisappropriatetochoosetheoilwithhighviscosity.3.Thesequenceofdisassemblyofmechanicalequipmentiscontrarytothatofassemblysequence,generallyby"fromoutsidetoinside,fromtoptobottom"Firstpartreparts.NoproblemProof4.ThecoordinationofwheelholeandshaftusuallyadoptsH7/K6transition.The

5、damageofmechanicalpartscanbedividedintotwoways:naturalwearandaccidentwear.quasiThecontrolelementsofhydraulicsystemhavepressurecontrolvalve,directionalcontrolvalveandflowcontrolvalve.7.Measurementerrorscanbedividedintosystematicerrors,randomerrorsandgrosserrors.Themachinesthatsuckandtransportl

6、iquidsarecalledpumps.raw9.Theinterrelatedcloseddimensionalfiguresformedduringtheprocessingarecalledprocessdimensionchains.10.Thefrictionstatecanbedividedintoslidingguide,rollingguideandstaticpressureguide.11.Therearetwowaystoachievepre-tighteningofrollingbearings:radialpretensionandaxialprete

7、nsionArea12.Nomatterwhichtypeofhydraulicpump,itisbasedontheprincipleofthechangeofsealvolume.Thebrakingmethodofthemotorhaselectricpowerandmechanicalbraking.14.AccordingtodifferentUSESandforces,theshaftisoftendividedintospindle,axleandshaft.---