雨课堂学堂在线学堂云《Geometric Detection of Parts（四川工程职业技术）》单元测试考核答案

第1题Althoughthetoleranceistheabsolutevalue,thenumber"+"cannotbeaddedinfrontofthetolerancevalue.第2题Thelimitdeviationofthepartsisusedtocontroltheactualdeviation.第3题Thedeviationvalueofthepartscanbepositive,negativeandzero.第4题Theactualsizeofthepartisitstruevalue.第5题Theactualsizeofthepartsislessthanitsnominalsize,thenitmustbeunqualified.第6题Accordingtothenationalstandardkeywaywidthbelongstothehole.第7题Standardizationisaprocessofcontinuouscirculationandimprovement.第8题Theselectionofprioritynumbersystemistofollowtheprincipleoffirstdenseandthensparse.第9题Theprioritynumberseriesmustbethearithmeticdifferenceseries.第10题Theinterchangebetweenthepartsofthestandardcomponentsiscalledtheinternalexchange.第11题Toensuretheinterchangeability,theerrorofthepartsshouldbecontrolledwithinthespecifiedtolerancerange.第12题

Thetoleranceisgeneratedintheprocessingprocess,andtheerrorisgivenatthedesigntime.第13题Theexchangeofgeometricquantitiesofpartsmainlyreferstotheexchangeofmechanicalproperties.第14题Fullyexchangeandapplyforoff-factorycooperativeproduction.第15题Determinethedimensionofthetwotolerancebandlinesrespectivelyindicatethedimensions()And()。()AupperdeviationBlowerdeviationCactualdeviationDcommondifference正确答案：AB第16题Thealgebraicdifferenceoftheactualsizeminusthenominalsizeisthesize()。()AupperdeviationBlowerdeviationCactualdeviationDcommondifferenceQuestion3.multiplechoice第17题Thealgebraicdifferenceobtainedfromtheminimumlimitsizeminusitsnominalsizeiscalled()。()AupperdeviationBlowerdeviationCactualdeviationDbasicdeviation第18题Thegivensizeis()。()AIdealsizeBintendedsizeCextremedimensionDfullscale第19题R10/3isthepreferrednumbersystem()。()ABasicseriesBSupplementaryseriesCsubseriesDMainseries第20题()Representingthenationalstandards.()AISOBGBCDBDJB第1题Theupperacceptancelimitsizeofthepartisequaltothemaximumlimitsizeofthepartminusthesafetymargin;theloweracceptancelimitsizeisequaltotheminimumlimitsizeofthepartplusthesafetymargin.(√)Question2.singlechoice.1Atthemeasurement,thestandardtemperatureis().()A26°CB20°CC37°CD0°C第2题China'slegalunitoflengthmeasurementis().()AriceBmillimetreCmicronDcm第3题Thescorevalueofthepercentagetableis:()A0.1mmB0.01mmC0.001mmD0.02mm第4题Whichofthefollowingarethesourcesofmeasurementerror.()AMeasurementinstrumenterrorBenvironmentalerrorCmethodicerrorDpersonalerror正确答案：ABCD第5题

Thesmallerthemeasurementerror,thelowerthemeasurementaccuracy.第6题Theinspectionisonlytojudgewhetheritisqualified,butnotnecessarilycangetthespecificquantityvalue.第7题Ameasuringblockisasingle-valuemeterwithascale.第8题Themeasurementaccuracyofthemeasuringblockishigherthan"equal"comparedto"level".第9题Inthecombinationofblocksize,themorethenumber,thebetter.第10题

Duringmaintenance,youcandirectlycontactthemeasuringblockbyhand.第11题

Themeasurementrangeandthedisplayvaluerangearethesameconcept.第12题Thereasonsforthefrequentuseofverniercalipersintheworkshopare:simplestructure,easytouseandhighprecision.第13题Themeasurementaccuracyoftheouterdiametermicrometerislowerthanthatoftheverniercaliper.第14题Forthemeasuredgeometricquantitiesofdifferentsizes,theabsoluteerrorisusedtoassessorcomparetheirmeasurementaccuracy.第15题

LargegrosserrorsinthemeasurementcolumnshouldbeeliminatedaccordingtotheRaidacriteria.第16题Whenmeasuring,themicrometerandthemeasuredworkpieceshallhavethesametemperature.第17题

Foreachturnofthelongpointer,theshortpointerturnsascale.第18题Theupperacceptancelimitsizeofthepartisequaltothemaximumlimitsizeofthepartminusthesafetymargin;theloweracceptancelimitsizeisequaltotheminimumlimitsizeofthepartplusthesafetymargin.Module3testquestions第1题Intheoperationvideo,whichmeasuringinstrumentisusedtodetectthestraightnesserroroftheguiderail.()AdialgageBelectrolevelCcombineddiagramlevelDautocollimator第2题Thefollowingaretheexportelements.()AsphericalsurfaceBcentreofsphereCPlainlineDtransverseplane第3题Thefollowingitemswithshapetolerancesarethe.()AdepthofparallelismBcirclerun-outCstraightnessDdegreeofsymmetry第4题Theshapeofthegeometrictolerancebandoftheplanarityis:()ATwoparallelstraightlinesBTwoparallelplanesCTwo-isometriccurvedsurfacesDcylndricalsurface第5题Thegeometrictolerancebandofthegeometrictoleranceitemmustbeacylindricalshape:()AStraightnessoftheelementlineBTheverticalityacrossfromthelineCaxialityDcylindricity第6题Whichofthefollowingaredirectionaltolerance:()AdepthofparallelismBverticalityCbatterDdegreeofsymmetry正确答案：ABC第7题Theelementsdeterminingthegeometrictolerancebandare:()AformBbigorsmallCdirectionDposition正确答案：ABCD第8题Whichofthefollowingmethodscanbeusedtosimulatethereferenceaxis.()AtipBVframeCjacketDgageblock正确答案：ABC第9题

Theregiondiscriminationofplanarerrorisnotincluded

。A

TrianglecriterionB

Cross-guidelinesCStraightlineguidelinesD

Alternativecriteria第10题Whentheindicatortableisusedtomeasuretheradialcircularbeatingerrorofthecylinder,themeasuringheadoftheindicatortableisonlyperpendiculartotheaxisofthecylinder.第11题TheΦshouldbeaddedbeforethetolerancevalueoftheroundness.第12题Therounarityisthesameasthegeometrictolerancebandofradialcircle,sotheeffectisthesame.第13题Thetoleranceboxoftheshapetolerancehasonlytwoboxes.第14题AddΦbeforethetolerancevalueofthecoaxialdegree.第15题Whenmarkingthegeometrictolerance,thetoleranceboxcanonlybemarkedhorizontally.第16题Whenmarkingthegeometrictolerance,theguidelineisallowedtobend,butonlyonce.第17题

Whenthemeasuredelementisacomponentelement,theguidelinearrowshouldbeclearlystaggeredfromthedimensionline.第18题Theminimumconditionmeansthatthemaximumdistanceoftheextractedelementtotheidealelementistheminimum.第19题

Fortheconstituentelements,theidealelementsthatmeettheminimumconditionsareintheentityandareincontactwiththeextractionelementsofthetestedelements.第20题

Whenevaluatingtheshapeerror,thewidthfordiameterdofthesmallestareaistheshapeerrorvalue.Module4testquestions第1题Theunitsofsurfaceroughnessparametersare:()AdimensionlessBmicronCmillimetreDrice第2题Whichofthefollowingmethodstodetectsurfaceroughness.AcomparativelawBlight-sectionmethodCNeedledrawingmethodDinterferometry正确答案：ABCD第3题

Onthesamepart,theroughnessvalueoftheworkingsurfaceshouldbesmallerthanthatofthenon-workingsurface.第4题Thesamplinglengthisspecifiedtolimitandweakentheimpactofmacroscopicgeometryerrors.第5题Therougherthesurfaceis,thesmallerthesamplinglengthshouldbe.第6题Thedirectionofthebaselineisconsistentwiththeoveralldirectionofthecontour.第7题Forsurfaceswithhighcorrosionresistanceandsealingrequirements,theroughnessvalueshouldbelarge.第8题Thetipofthesurfaceroughnesssymbolmustbepointedfromtheoutsideofthematerialtotheinjectedsurface.第9题Selectthesurfaceroughnessevaluationparametervalue,thebetter.第10题Thesurfaceroughnesscanaccuratelyobtaintheroughnessvalueofthetestedsurface.第11题Thesurfaceroughnessshouldbemeasuredinthedirectionperpendiculartothemachiningtrace.第12题

Thecomparativemethodtoassessthesurfaceroughnessmethodissimple,suitableforproductionsiteuse,andismainlyusedtoevaluatethesurfacewithlowsurfaceroughnessrequirements.第13题Whenevaluatingtheshapeerror,thewidthfordiameterdofthesmallestareaistheshapeerrorvalue.第14题Whenmeasuringthestraightnessoftheguiderailwithahorizontalinstrument,thepositionoftheforwardtestandthebacktestcanbeinconsistent.Module5testquestions第1题Themeasuringrangeforonlytheruleris()。()A0º~50ºB50º~140ºC140º~230ºD230º~320º第2题TheengravingprincipleoftheuniversalAnglerulerand()resemble.()AverniercalipersBmicrocalliperCdialgageDcomparatorQuestion3.multiplechoice第3题Conicfitincludes()。()AclearancefitBtransitionfitCshrinkfitDclosefit正确答案：ABC第4题Themethodofconefitformationincludes()。()ADisplacementtypeBStructuraltypeCSizemethodDShapemethod正确答案：AB第5题

Coniccoordinationisdividedintothreeforms:gapcoordination,overprofitcoordinationandtransitioncoordination.第6题Taperismeasuredinmm/m.

第7题Thebasesurfacedistancereferstothedistancebetweentheinnerandouterreferenceplanesoftheconical.第8题Ingeneral,insteadofseparatelydefiningtheconicalangletolerance,theactualconicalangleiscontrolledwithintheconicaldiametertoleranceband.第9题

Themeasurementrangeoftheuniversalangleruleris0~360.

第10题Thesinegaugecanbeusedasaprecisionmeasurement.第11题Thesinegaugeisanindirectmeasurement.

第12题Closecooperationhasinterchangeability.Module6testquestions第1题Thenominaldiameterofthenormalthreadis()。()ALargediameterofthreadBeffectivediameterofthreadCThreadedTrailDSinglemediumdiameter第2题ThetoothAngleofordinarythreadis()。()A20°B30°C60°D90°第3题ThreadmarkM8×1.25-6g,thefollowingexplanationofthethreadisincorrect:()ANominaldiameterof8mmBclosely-pitchedCThepitchis1.25mmDinternalthread第4题Threadmicrometerisusedformeasuringthread()。()ALargediameterBpitchdiameterCpathwayDpitch第5题Ordinarythreadcanbeusedastransmissionparts.第6题Trianglethreadiscommonlyusedasaconnectionthreadbecauseofitslargeequivalentfrictioncoefficientandhighstrength.第7题Therelationshipbetweenthenormalthreadpathandthenominalsizeofthelargediameter:d1=d-1.082532P.第8题M18×1.5-LMreferstotheAmericanthread.第9题Whenmeasuringthemiddlediameteroftheexternalthreadbythethree-needlemethod,theactualsizeofthemiddlediametercanbereaddirectlyfromtheinstrument.第10题Theordinarythreadaccuracystandardspecifiesthetoleranceofdiameter,pitchandtoothhalfanglerespectively.第11题Threadgaugehaspassgaugeandstopgauge.Intheinspectionofthread,itcanbeusedincombinationorseparately.第12题Thethreadgaugeisusedtocheckthequalificationofthethreadduringthecomprehensiveinspection.Module7testquestions第1题Theradialdeviationofonegearmainlyaffectstheuserequirementsofgeartransmission.()AAccuracyofthedeliveredmovementsBMovementsmoothnessCUniformityoftheloaddistributionDSide-gapplausibility第2题Becausethegearsidegapisconducivetothestorageoflubricatingoilandthecompensationfortheelasticdeformationandthermaldeformationofthegearunderforce,thelargerthesidegapisThebetter.第3题

Gearfordifferentpurposesanddifferentworkingconditionshavedifferentrequirementsforgeartransmission.第4题Frisalsocommonlyusedinthefactoryinsteadoftheballhead.Itsdiameteris1.68mandmisthemodulusofthetestedgear.第5题Duringthegearprocessing,thegeometriceccentricityiscausedbythenonoverlappingaxisofthetoothblankreferenceholeandtherotatingaxisoftherollingmachineworkingplatform.第6题Thevariationofthelengthofthegearnormalreferstothedifferencebetweenthemaximumandminimumvaluesoftheactuallengthofthegearwithinaweekofthegear.第7题Measurethelengthofthecommonnormalaccordingtothecommonnormal.第8题Gearpaircontactspotreferstothecontactpolishtracedistributedonthetoothsurfaceafterrunningoftheassembledgearpairunderslightbraking.第9题Whenthegearbeatingdetectordetectsthegearradialbeating,itdoes