装配钳工中级试题Word格式.docx
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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