装配钳工中级试题.docx

装配钳工中级试题.docx

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装配钳工中级试题

装配钳工中级试题

1.,thesubstanceofprofessionalethicsis（C）.A,improvepersonallife,B,andincreasethewealthofsociety

C,establishanewsocialistattitudetowardslabor,Dandenhancethesenseofcompetition

2.violationofsafetyproceduresis（A）.A,formulatetheproductionprocess,Bandimplementtherulesandregulationsofsafetyproduction

C,strengthentheconceptoflegalsystem,D,andenforcethelawsandregulationsonnationalsafetyinproduction

3.,notconsistentwiththerequirementsofclean,civilizedproductionrequirements（C）.A,implementoperatingprocedures,B,implementationrulesandregulations

C,theworkisnotrequiredforclothing,D,andcreategoodconditionsofproduction

4.theerrorinthefollowingstatementis（C）.A,forthepartsoftheribs,spokesandthin-walled,suchaslongitudinalcutting,thesestructuresarenotpaintedcrosssectionsymbols,

Butitwillseparatetheadjacentpartswiththicklines.

B,whenthestructureoftherib,spokeandholeontherevolvingpartofthecomponentisnotinthecuttingplane,thesestructurescanberotatedtotheplaneofcuttinganddrawn

C,thelongerparts（shafts,rods,profiles,connectingrods,etc.）inthedirectionofthelengthofthesameshapeorchangeaccordingtocertainrules,itcanbebrokentoshortenthedrawing.Whenusingthisdrawingmethod,thesizecannotbemarkedbytheoriginallengthofthemachine

D,whenaplaneonarevolvingpartcannotadequatelyrepresentaplaneinagraph,itcanberepresentedbyplanesymbols（twofinesolidlinesintersecting）

5.todeterminethebasicdeviation,mainlytodetermine（A）.A,tolerancezonelocation,B,tolerancezonesize

CandmatchingaccuracyD,workpieceprocessingaccuracy

Thestructureof6.ductileironcanbe（B）.A,ferrite+group,flocculentgraphite,B,ferrite+spheroidalgraphite

C,ferrite+pearlite+flakegraphite,D,pearlite+flakegraphite

7.theaccuracyofcylindricalgeardriverequireskinematicaccuracy,workstability（D）andotheraspectsofprecisionrequirements.

A,geometricaccuracyB,parallelismC,perpendicularityD,contactprecision

8.（A）,mainlycooling.A,aqueoussolutionB,emulsionC,cuttingoilD,rustinhibitor

9.whenusingamarkerline,theanglebetweentheneedleandthemarksurfaceshallbemaintained（A）.

A,40degreesto60degreesB,20degreesto40degreesC,50degreesto70degreesD,and10to20degrees

10.inthethreadedholeorificechamfering,tapstartcutting（A）.

A,easytocutintoB,noteasytocutintoC,easytobreakD,noteasytobreak

11.theclassificationofmotorsisincorrect（C）.

A,asynchronousmotorandsynchronousmotor,B,three-phasemotorandsingle-phasemotor

C,activemotorandpassivemotor,D,ACmotorandDCmotor

12.,thecurrentdamagetothehumanbodyhasnothingtodowith（D）.

A,themagnitudeofthecurrentthroughthebody,B,andtimepassedthroughthebodycurrent

C,currentthroughthebodypartofD,electricshockcharacter

13.,enterprisesdonotincludethepreventionandcontrolofenvironmentalpollution（D）.

A,preventionandcontrolofairpollution,B,preventionandcontrolofwaterpollution,C,preventionandcontrolofnoisepollution,D,preventionandcontrolofTransportPollution

14.environmentalprotectiondoesnotinclude（A）.A,regulateclimatechange,B,andimprovethequalityofhumanlife

C,protecthumanhealth,D,andpromotethecoordinateddevelopmentofmankindandtheenvironment

15.thetransmissionsystemdiagramofthemachinetoolcanexpressthedrivelineofthewholemovementofthemachineinbrief,anditistheimportantdatatoanalyzetheinsideofthemachinetool（A）.

A,transmissionlawandbasicstructure,B,transmissionlaw,C,movementDandbasicstructure

16.readthetransmissionsystemdiagram（B）istostudythetransmissionshaftandtransmissionpartsoftheconnectionformandthetransmissionshaftbetweenthedrivelinkandtransmissionratio.

A,thefirststepB,thesecondstep,theC,thethirdstep,theD,andthefourthstep

17.lathe（A）,thatis,thestraightmotionofthetoolholder.A,carriagefeedingmovement,B,cuttingmovement,C,cuttingmovement,D,mainmovement

The18.axisIisequippedwitha（B）,usedtocontrolthespindleofthepositive,reverseorstop.A,couplingBandbidirectionalmultiplatefrictionclutch

C,clutch,D,conefrictionclutch

19.CA6140lathelongitudinalandtransversefeeddrivechainisfrom1axisto（B）tothegearwheel,transmissiontolightbar（screw）,throughtheslidingboxinthetransmission

Thetoolheadisusedforlongitudinalandtransversefeedmovement.A,reducer,B,spindlebox,C,squarebox,D,slideboxandsquarebox

20.CA6140lathelathethreaddrivechainisfromoneshafttospindleboxtogearwheelmechanismtoclutchtoscrewinthegearboxand