工程制图（双语）智慧树知到期末考试答案章节答案2024年吉林大学

工程制图（双语）智慧树知到期末考试答案+章节答案2024年吉林大学Inmechanicaldrawings,thedimensionsofthefeaturesofthesameshapeandsizeinapart,asequallyspacedholes,aredimensionedononlyonefeatureandwiththeamountwrittenbeforethedimensionfigure.

答案:对Whenthereisnomisunderstanding,theinclinedviewcanberotetedtobehorizontalorvertical.Inthiscase,arotatingsymbolshouldbegivenafterthenameoftherotatedview.

答案:错Whentherearenotenoughplacetoputdimensionnumeralsand(or)arrows,theycouldbewrittenorplacedoutsideoftheextensionlines,andthearrowscouldbereplacedbyfilleddots.

答案:对Axonometricprojectioncangivetheexactshapeandsizeoftheobject,anditiseasytodrawandcanbemeasuredeasily,soitiswidelyusedinengineering.

答案:错Thevisiblethreadterminationlinesshouldbedrawnasthicksolidlines.

答案:对Insectionalviews,theinvisibleoutlinesbehindthecuttingplanesshouldbedrawnindashedlines.

答案:错InusingAutoCADsoftware,whenwesetanewdimensionstyleformechanicaldrawing,wesetExtensionlinesOffsetfromoriginto2mm.

答案:错Whenamachinepartisdrawnonlyhalfofit,thedimensionsshouldbegivenaccordingtothehalfsizeofit.

答案:错Whenoveralldimensionsaregiven,ifoneendortwoendsofasolidinacertaindirectionisformedbycylindricalsurface(s),thentheoveralldimensioninthatdirectionisformedbythesizedimension(s)ofthecylindricalsurface(s)andthelocationdimensionofthem.

答案:对Whenapartneedberepresented,thefrontview,theleft-sideviewandtheright-sideviewmustbeused.

答案:错Theleadersforgivingpartnumbersontheviewsofassembliesareallowedtobebentseveraltimes.

答案:错Whichofthefollowingplaneshavetheprojectionofedgeview?

答案:Frontalplane;V-perpendicularplane;W-perpendicularplane;HorizontalplaneInordertoreducethenumberofthecuttingtoolsandmeasuringtoolswhichareusedtomanufactureandmeasuremachineparts,twofitsystemsareapplied,hole-basissystemandshaft-basissystem,inwhichtheshaft-basissystemisthemostcommonlyusedone.

答案:错InAutoCADsoftware,whichofthefollowingoptionscanbeusedtodrawchamfers?

答案:Distance,Distance;Distance,Angle

答案:Therearhalf;Thelefthalf

答案:PointNisinlineEF.;PointMisinplaneABC.Whenviewsofspurgearsaredrawn,thereareseveralparameterswhichshouldbegiven,include,andtheothers.

答案:outsidediameter;rootdiameter;pitchdiameterTheprofileprojectionofapointcangivetheofthepoint.

答案:CoordinateXandcoordinateYWhatlinetypeisusedtoindicatethevisiblelinebehindthecuttingplane?

答案:ThicksolidlineWhichoneofthefollowingfiguresiscorrect?

答案:

答案:ThedirectionoftherearviewWhichofthefollowinglinesareusedtoexpressaxislines,symmetricalcenterlines,andcrossedcenterlinesofcircles?

答案:ThincenterlinesTheprojectionlinewhichconnectsfrontalprojectionandprofileprojectionisperpendiculartoaxis.

答案:OZIntheprocessofhingingtheviewstobeatthesameplane,whichplaneofprojectionisnotrotated?

答案:Frontalplaneofprojection

答案:Rectangle

答案:错Thereferrencearrowprojectionofapartcanbearrangedattheplaceotherthanwheretheprincipleviewshouldbe,butitmustbespecified.

答案:对Therollingbearingcanonlybedrawnaccordingtotheactualsize.

答案:错Allofthedimensionnumeralsshouldbewrittenhorizontally.

答案:错Inmechanicaldrawings,thedimensionsofthepartsshouldbegivenaccordingtothedrawingscales.

答案:错C2isadimensionofachamferofapart,inwhichcapitalletterCisusedtostandfor30°.

答案:错Forthesinglestartthread,thepitchequalsthelead

答案:对Inthedetaildrawingofapart,thedimensionsofverysmallfeaturescanbeomitted.

答案:错

答案:对Inthesectionaldrawingofthreadjoints,whereinternalandexternalthreadsarescrewedtogetherisdrawnthesameasthedrawingofinternalthreads.

答案:错Crestdiameterofscrewthreadshouldbedrawninthicksolidline.

答案:对Thesymetricallineinhalfsectionalviewshouldbedrawnincenterline,andinvisiblefeaturesintheprincipleviewhalfshouldberepresentedindashes.

答案:错Thediametersofscrewthreadsinclude.

答案:pitchdiameter;minordiameter;majordiameterInwhichofthefollowingmethodsthatthecircumscribedcirclesareusedtodrawregularhexagons?

答案:

答案:对InusingAutoCADsoftware,whichofthefollowingcommandscanbeusedtogetparallellinesofanexistingline?

答案:Offset;Copy;MirrorInordertoavoidmisunderstanding,thewavylines,whichareusedinpartialviewsorbroken-outsectionsasdivisionlines,shouldbeseparatelydrawn,theycannotbecoincidewithorbeoftheextensionsofotherexistinglines.

答案:对Whatofthefollowinginformationcanbeaquiredfromassemblydrawing?

答案:Theoveralldimensionsofeachdirection.;Assemblingdimensionsbetweenparts.Thedimensionsontheviewsofmachinepartshavethreestyles,theyare.

答案:integratedstyle;chain-likestyle;coordinatestyle

答案:Profileline;W-perpendicularline;Horizontalline;ObliquelineWhichoneisasetofcoefficientsofcabinetprojection?

答案:p=r=1,q=0.5Extensionlinesareusedtoindicatetheboundariesandextentsofthenoteddimensions.Whatexistinggraphicelementscanbeusedasextensionlines?

答案:Centerlines;Axes;OutlinesWhichofthefollowingdescriptionsaboutthegivingdimensionformechanicaldrawingarecorrect?

答案:Thedimensionlinesoflineardimensionsmustbeparalleltothesegmentswhichare

dimensioned.;Thearrowsofcontinuousdimensionsshouldbedrawnaligned.;Thedimensionfiguresofhorizontaldimensionsshouldbedrawnupwardabovethedimensionlines;thoseofverticaldimensionsshouldbedrawnleftwardontheleftofthedimensionlines;andthoseofobliquedimensionsshouldbedrawnatupwarddirectionandplacedoverthedimensionlines.;Forparalleldimensions,thelargeronesshouldbeplacedoutsideofthesmallerones,andthedistancebetweentwoparalleldimensionsshouldbe5～10mm.Whenassemblydrawingsaremade,whichofthefollowingdescriptionsiscorrect?

答案:Startwiththemainviewandalltheviewsareconsideredtogether.Whichofthefollowingdescriptioncannotbeacquiredfromassemblydrawing?

答案:Allofthestructureinformationofallpartsofacertainassembly.Engagementlengthsymbolfornormalis

答案:NIfalineisparalleltoarectangularcoordinateaxisinanobject,itsaxonometricprojectionwilltothecorrespondingaxonometricalaxis,anditwillhastheaxialdeformationcoefficientwithcorrespondingaxonometricalaxis.

答案:Parallel,sameWhenpartialviewsaredrawn,whichlinetypeisusedastheboundarylinebetweenthedrawnportionandtheomittedportion?

答案:WavylineWhichofthefollowingrepresentationofpartofanassemblydrawingiscorrect?

答案:

答案:NoneofthemInthefollowingdescriptionsaboutthecontentsincludedinassemblydrawings,whichoneiscorrect?

答案:Theassemblingrelationshipofpartsandcomponents.Whenassemblydrawingsaremade,thesmallfeaturesincludingsmallchamfersandsmallcornerscanbeomitted.

答案:对Sometimes，apartasawholeisnearlysymmetrical，buttheremaybesmallfeatureswhicharenotsymmetrical.Inthiscase,ifthenon-symmetricalsmallstructureisclearlyrepresentedinoneview,halfsectionalviewscanalsobeusedinotherviews.

答案:对Whentwosolidsintersecttoeachother,theintersectionisthecollectionofallofthecommonpointsinthesurfacesofthetwosolids.

答案:对Thesizeofthegroovesinpartscanbegivenaswidthanddiameterorwidthanddepth.7X2.25isthedimensionofagroove,inthisdimension,7isthedepthofthegrooveand2.25isthewidthofit.

答案:错Thefundamentaldeviationofaholeisindicatedbyalowercase,whereasthefundamentaldeviationofashaftisindicatedbyacapitalletter.

答案:错

答案:错Whenribsorwebsorothersimilarfeaturesarelongitudinallycut,sectionlinesshouldbedrawntothesections.

答案:错Whentherevolvedpartshaveequallyspacedfeatures,suchasribsandholes,withrevolutionconventions,thefeaturescanberepresentedbyrevolvingthemtoliealongthehorizontalcenterlineortheverticlecenterline,sothatthesturcturesofthefeaturescanberepresentedmoreclearlyandinterpretedeasily.

答案:对Iftheinternalstructureofapartiscomplex,theinternalsurfacesofitwillresultintoomanyhiddenlines.Inthiscase,asectionalviewshouldbeusedtorevealtheinternalfeaturesofthepart.

答案:对Therepresentationsoftheenlargementviewscanbethesametoordifferentfromthatoftheoriginalviews.

答案:对Whenapartisrepresented,accordingtothedifferentstructurecharacteristicofit,theorientationofthepartcanbemachinedorientationorworkingorientation.Forashaft,therepresentionorientationofitisworkingorientation.

答案:错Thecylindricalspiralcompressionspringcanbedrawninbothregularviewandsectionalview.

答案:对Generally,normalplanesarepreferredtobeusedascuttingplanes,andthecuttingplanewillgothroughthesymmetricalplanesofthesolidsortheaxesofrevolvedfeatures.

答案:对Dimensionsinadetaildrawingindicatethefinalsizeofthefinishedpart.

答案:对Theaxonometricprojectionsoftheparallellinesinanobjectwillstillparallel.

答案:对Thestartendandtheendendofacenterlineandaphantomlineshouldbelongdashes.Andwhenthesetwotypesoflinesareveryshort,theycouldbereplacedbythinsolidlines.

答案:对

答案:错Transitionlinesinacastingpartarenotrealprojectionsofoutlinesofthepart，theyaredrawninthinsolidlines.

答案:对Whenthespurgearsaredrawninsectionalviews,thesectionlinesshouldbedrawningeartoothportions.

答案:错Inassemblydrawings,theviewsofcertainpartscanbespeciallygiven,andthenthenameofthepartsshouldbegiventotheviews.

答案:对

答案:givethedistancebetweentwolines;givethediameterofacircleInCATIAsoftware,thereareseveraltoolbarswhichareusedinconstructingmodelsofsolidsinPartDesignworkbench,including,andtheothers.

答案:TransformationFeatures;Constraints;Sketch-BasedFeatures;Dress-UpFeaturesPitchofscrewthreadistheaxialdistancebetweenthetwoadjacentteethatthecorrespondingpointsonthecrestline.

答案:错Whensectionalviewsareusedtorepresentsolidsorfeatures,trytoavoidincompleteelementsorsectionsthatdonotreflectrealshapes.

答案:对Indrawings,thicksolidlinescanbeusedtorepresent.

答案:Visibleedges;VisiblecontourlinesInusingAutoCADsoftware,whichofthefollowingshouldbesetwhenwedrawaqualifiedengineeringdrawingwithAutoCADsoftware?

答案:Dimensionstyles;Textsyles;LayerpropertiesWhichofthefollowingfeaturesaremachinedtechnicalfeatures?

答案:Toolrecesses;Bosses;ChamfersThevisiblethreadterminationlinesshouldbedrawninthicksolidlines.

答案:对Thedimensionsinadetaildrawingindicatethefinishedsizeofthepart,theyhavenorelationshipwiththedrawingscale.

答案:对Whatofthefollowingdescriptionaboutgivingangulardimensionsarecorrect?

答案:Thedimensionfiguresofanangulardimensioncanbeplacedinthebreaks,aboveoratthesidesoftheextensionlines,oraboveleaderlineswhicharedrawnstartfromdimensionlines.;Theboundarylinesortheextentsofthemcanbetheextensionlinesofanangulardimension.;Thedimensionlineofanangulardimensionisanarcwithcertainradius,andthecenterofthearcisthevertexoftheangle.Whichofthefollowingprojectiondrawingsindicateaplane?

答案:Dimensionsindetaildrawingsshouldbe.

答案:clear;complete;correct;reasonableWhataretheprojectionpropertiesofW-perpendicularline?

答案:ThefrontalprojectionisparalleltoaxisOX.;Theprofileprojectionispointview.;Thefrontalprojectiongivesthetruelength.;ThehorizontalprojectionisparalleltoaxisOX.

答案:H-perpendicularplane;Frontalplane;Horizontalplane

答案:6InusingAutoCADsoftware,whichofthefollowingoperationcanbeusedtochangedimensionfigures?

答案:Doubleclicktheexistingdimensionfigureandthentypenewone.;Typedimensionfiguresinthecommandbar.InusingAutoCADsoftware,whensetalayer,whichofthefollowingitemsshouldbespecified?

答案:Thenameofthelayer;Linetype;Color;Lineweight

答案:FrontallineWhichofthefollowinglinesareusedtoexpressbreaklines,orboundarylinesforbrokenlocationswheretheviewportionsandthesectionedportionsareseparated?

答案:WavylinesIfthemajordiameterofathreadisd,theminordiameterd1approximatelyequals.

答案:0.85dInclinedviewshouldbespacifiedwitharrowandletter,themethodtogivethelettersisthat.

答案:ThelettershouldbegivenhorizontallyandupwardWhenasphereiscutbyaplane,theintersectionofthesphericalsurfaceofthesphereandtheplanecouldbea(an)

.

答案:CircleWhichofthefollowingisthedefaultunitinmechanicaldrawings?

答案:mmWhichofthefollowingsectionsymbolisthegeneralone?Thatmeansthissymbolcanalsobeusedinoccasions

whenthereisnospecialneedtodistinguishthematerial.

答案:

答案:Removedsection

答案:No,itisn't.Whichofthefollowingdescriptionsiscorrectaboutgivingsequencenumbersinpartslistform?

答案:Writtenfromtoptobottomandfromsmallernumbertolargernumberincontinuousorder.Ifthereisnotenoughspaceforplacingthewholepartslistabovethetitleblock,wherecanweputtheleftpartitems?

答案:AttheleftofthetitleblockTheisometricprojectionofahorizontalcircleisanellipse.Theminoraxisoftheellipseisincoincidencewith,andthemajoraxisoftheellipseisperpendicularto.

答案:axisZ1,axisZ1

答案:InusingAutoCADsoftware,theoperationsequenceofwhichofthefollowingcommandsisstartthecommand,selecttheobjects,specifybasepoint,specifysecondpoint.

答案:Copy;MoveInusingAutoCADsoftware,whenthecommandMirrorisused,themirrorlinemustbecenterlines.

答案:错InusingAutoCADsoftware,thefollowingdescriptionsareabouttheusagesofthecommandTrim,whichofthemarecorrect?

答案:Wecanpicktheboundaries

one

by

one.;WecantrimseveralsegmentsinonetimeconductingtheTrimcommand.;Wecanright

click

the

mousetoselect

all

the

objectsasboundaries.InusingAutoCADsoftware,whenwedrawarectangle,weshouldgivetwopointsintherectangle.Whichofthefollowingdescriptioniscorrectaboutthetwopoints?

答案:Theoppositetwocornerpoints.InusingAutoCADsoftware,thecommandTrimcanonlybeusedtotrimstraightlinesandarcs,whereascirclescannotbetrimedbythecommandTrim.

答案:错Themethodswhichcanbeusedinrepresentingmachineparts,includeregularviews,sectionalviews,removedsections,andthelike,whichcanalsobeusedtorepresentassemblies.

答案:对Whatofthefollowingareofthespecialrepresentationmethodsofassemblydrawing?

答案:Phantomrepresentation;Drawaviewofacertainpart;TakingseveralpartsapartWhatofthefollowingareindicatedinassemblydrawings?

答案:Workingprincipleofassembly;AssemblingrelationshipsofpartsWhatofthefollowingareincludedinpartslistsofassemblydrawings?

答案:Materialsofparts;Namesofparts;ThenumberofcertainpartsinanindividualassemblyWhatofthefollowingarethecontentsofassemblydrawings?

答案:Technicalrequirements;Agroupofviews;Titleblock,partnumbersandpartslistToleranceisthedifferencebetweenthepermittedmaximumandminimumsizesofapart.Italsoequalsthedifferencebetweentheupperlimitdeviationandthelowerlimitdeviation.

答案:对WhichofthefollownumbersareofRavalues?

答案:3.2;12.5;6.3Theoveralldimensionofapartinacertaindirectionneedsnottobegiveninconditionthatthedimensionsofeachportionhavealreadybeengiven.

答案:错Whenashaftisrepresented,theaxisofitshouldbeplacedhorizontally.

答案:对Indimensionφ60f7inadetaildrawing,φ60is,fis,7is.

答案:Thenominalsizeofarevolvedsurface,thefundamentaldeviationsymbolofanexternalsurface,theITgrade.Whichsurfaceisworkingsurfaceofsquareandrectangularkeyjoint?

答案:SidesurfaceWhichoptionsbelongtothefiveimportantscrewthreadelements?

答案:Pitchandlead;Treadform;Turningdirection;Threadnumber;Majordiameter,pitchdiameterandminordiameterWhichoptionisthetypesymbolforpipethreads?

答案:GInthefollowingoptions,arestandardparts.

答案:Commonlyusedthreadfasteners;KeysWhichscrewthreadtermisthenominaldiameter?

答案:MajordiameterAccordingtothecuttingrange,sectinalviewsinclude.

答案:Halfsectionalview;Fullsectionalview;Broken-outsectionWhatrepresentationmethodsareincludedinthemethod'view',thatis,non-sectionedview?

答案:Partialview;Referrencearrowview;Inclinedview;PrincipleviewChoosethepropertiesofthegeneralsectionlinefromthefollowingdescription.

答案:Thinsolidline;Havingthesameinterval;45°or135°abouthorizontalline;ParalleltoeachotherInoccasionsofrepresentingarelativelycomplexpart,threestandardviewsarenotenoughtoshowallthedetailsofthepartclearlyandcompletely.

答案:对Accordingtothedifferentstructuresofthemachineparts,differenttypesofcuttingsurfacescanbeused.Thecuttingsurfacesinclude.

答案:Severalintersectingcuttingplanes;Singlecuttingplane;Severalparallelcuttingplanes;SinglecylindricalsurfaceWhentheviewsofacompositesolidformedbyaddingaredrawn,thesolidcanbeconsideredasformedbysmallfeatures,andthentheviewsofthefeaturesaredrawnonebyone.Intheprocessofdrawingviewsofthefeatures,weshouldkeepinmindthatthecompositesolidisawholesolid.

答案:对Theisometricprojectionofafrontalcircleisanellipse.Theminoraxisoftheellipseisincoincidencewith,andthemajoraxisoftheellipseisperpendicularto.

答案:axisY1,axisY1Whichoftheusagesofcenterlinesinviewsarecorrect?

答案:Showtheprojectionofsymmetricplaneofasolidinacertaindirection;Expressaxisofsolidsofrevolution.;ExpresscrossedcenterlinesofcircularprojectionsTheisometricprojectionofaprofilecircleisanellipse.Theminoraxisoftheellipseisincoincidencewith

,andthemajoraxisoftheellipseisperpendicularto

.

答案:axisX1,axisX1Whentheviewsofacompositesolidformedbycuttingaredrawn,thesolidcanbeconsideredasaextrudingprismandthencutbydifferentplanes.

答案:对Whenmakingprojectionsofpointsintheconicalsurfacesofconesandsphericalsurfacesonspheres,auxiliaryelementmethodandauxiliarylatitudecirclemethodcanbothbeused.

答案:错Whichofthesolidcanwemakestraightlinesonitssurfaces?

答案:Pyramid;Cylinder;Prism;ConeWhenweneedtomakeapointonthesurfaceofasolid,onwhichofthefollowingsolidtheauxiliarylatitude