工程制图（双语）智慧树知到课后章节答案2023年下吉林大学

工程制图（双语）智慧树知到课后章节答案2023年下吉林大学吉林大学

第一章测试

Accordingtonationalstandard,whichofthefollowingarepreferredscales?

A:2：1B:5：1C:4：1D:3：1

答案:2：1;5：1

Whichofthefollowingletteringheightsareprovidedinnationalstandards?

A:3B:7C:10D:5

答案:7;10;5

Thesymbol"GB/T14689-2008"denotesthattheconcernnationalstandardiscompulsory.

A:错B:对

答案:错

Whenwemakeadrawing,aframeshouldbedrawninsideoftheoutmostedgesofthedrawingsheet.Therearetwostylesofdrawingsheetlayout:withafillingmarginandwithoutafillingmargin.

A:错B:对

答案:对

Whichofthefollowinglinesareusedasdimensionlines,extensionlines,leaderlines,constructionlines,sectionlinesandprojectionlines?

A:ThinsolidlinesB:WavylinesC:ThincenterlinesD:Thinphantomlines

答案:Thinsolidlines

第二章测试

Whichofthefollowingaretheprojectionrulesoftheprojectionsofpoints？

A:Thehorizontalprojectionandtheprofileprojectionofthesamepointhavethesamewidthcoordinate.B:Thefrontalprojectionandtheprofileprojectionofthesamepointshouldbealignedhorizontally.C:Thefrontalprojectionandthehorizontalprojectionofthesamepointshouldbealignedvertically.

答案:Thehorizontalprojectionandtheprofileprojectionofthesamepointhavethesamewidthcoordinate.;Thefrontalprojectionandtheprofileprojectionofthesamepointshouldbealignedhorizontally.;Thefrontalprojectionandthehorizontalprojectionofthesamepointshouldbealignedvertically.

Whataretheprojectionpropertiesoffrontalline?

A:TheprofileprojectionisparalleltoaxisOZ.B:TheanglebetweenthefrontalprojectionandaxisOXequalstheangleofthespaciallineandthehorizontalplaneofprojection.C:ThehorizontalprojectionisparalleltoaxisOX.D:Thefrontalprojectiongivesthetruesize.

答案:TheprofileprojectionisparalleltoaxisOZ.;TheanglebetweenthefrontalprojectionandaxisOXequalstheangleofthespaciallineandthehorizontalplaneofprojection.;ThehorizontalprojectionisparalleltoaxisOX.;Thefrontalprojectiongivesthetruesize.

Ifalineisanobliqueline,theprojectionsofthelinewillbeforeshortenedlinesinthethreeplanesofprojections.

A:错B:对

答案:对

Theconnectinglinebetweenthespacialpointanditshorizontalprojectionreflectsthedistanceofthepointtothehorizontalplaneofprojection,anditequalsthecoordinateXofthepoint.

A:对B:错

答案:错

AccordingtothedifferenceofXcoordinatesofthetwopoints,wecantelltherelativepositionofthesetwopointsinfront-reardirection.

A:对B:错

答案:错

第三章测试

Whichofthesolidcanwemakestraightlinesonitssurfaces?

A:SphereB:PrismC:CylinderD:PyramidE:Cone

答案:Prism;Cylinder;Pyramid;Cone

Whenweneedtomakeapointonthesurfaceofasolid,onwhichofthefollowingsolidtheauxiliarylatitudecirclemethodcanbeused?

A:SphereB:PyramidC:PrismD:Cone

答案:Sphere;Cone

Whenmakingprojectionsofpointsintheconicalsurfacesofconesandsphericalsurfacesonspheres,auxiliaryelementmethodandauxiliarylatitudecirclemethodcanbothbeused.

A:错B:对

答案:错

Whenasphereiscutbyaplaneatanylocation,alloftheprojectionsoftheproducedintersectionarecircles.

A:对B:错

答案:错

Whendimensioningacompositesolidwhichisformedbycutting,thedimensionsshouldbegivenatthelocationwherethesolidiscut.

A:对B:错

答案:对

第四章测试

Whentheviewsofacompositesolidformedbyaddingaredrawn,thesolidcanbeconsideredasformedbysmallfeatures,andthentheviewsofthefeaturesaredrawnonebyone.Intheprocessofdrawingviewsofthefeatures,weshouldkeepinmindthatthecompositesolidisawholesolid.

A:错B:对

答案:对

Whentheviewsofacompositesolidformedbycuttingaredrawn,thesolidcanbeconsideredasaextrudingprismandthencutbydifferentplanes.

A:错B:对

答案:对

Whichoftheusagesofcenterlinesinviewsarecorrect?

A:ExpressinvisibleoutlinesB:ExpresscrossedcenterlinesofcircularprojectionsC:ShowtheprojectionofsymmetricplaneofasolidinacertaindirectionD:Expressaxisofsolidsofrevolution.

答案:Expresscrossedcenterlinesofcircularprojections;Showtheprojectionofsymmetricplaneofasolidinacertaindirection;Expressaxisofsolidsofrevolution.

Theisometricprojectionofafrontalcircleisanellipse.Theminoraxisoftheellipseisincoincidencewith,andthemajoraxisoftheellipseisperpendicularto.

A:axisY1,axisX1B:axisX1,axisX1C:axisY1,axisY1D:axisZ1,axisZ1

答案:axisY1,axisY1

Theisometricprojectionofaprofilecircleisanellipse.Theminoraxisoftheellipseisincoincidencewith

,andthemajoraxisoftheellipseisperpendicularto

.

A:axisX1,axisZ1B:axisX1,axisX1C:axisY1,axisY1D:axisZ1,axisZ1

答案:axisX1,axisX1

第五章测试

Whatrepresentationmethodsareincludedinthemethod'view',thatis,non-sectionedview?

A:PrincipleviewB:InclinedviewC:ReferrencearrowviewD:Partialview

答案:Principleview;Inclinedview;Referrencearrowview;Partialview

Accordingtothecuttingrange,sectinalviewsinclude.

A:HalfsectionalviewB:FullsectionalviewC:OffsetsectionD:Broken-outsection

答案:Halfsectionalview;Fullsectionalview;Broken-outsection

Accordingtothedifferentstructuresofthemachineparts,differenttypesofcuttingsurfacescanbeused.Thecuttingsurfacesinclude.

A:SinglecuttingplaneB:SinglecylindricalsurfaceC:SeveralintersectingcuttingplanesD:Severalparallelcuttingplanes

答案:Singlecuttingplane;Singlecylindricalsurface;Severalintersectingcuttingplanes;Severalparallelcuttingplanes

Choosethepropertiesofthegeneralsectionlinefromthefollowingdescription.

A:ThinsolidlineB:45°or135°abouthorizontallineC:HavingthesameintervalD:Paralleltoeachother

答案:Thinsolidline;45°or135°abouthorizontalline;Havingthesameinterval;Paralleltoeachother

Inoccasionsofrepresentingarelativelycomplexpart,threestandardviewsarenotenoughtoshowallthedetailsofthepartclearlyandcompletely.

A:错B:对

答案:对

第六章测试

Whichscrewthreadtermisthenominaldiameter?

A:CrestB:MinordiameterC:MajordiameterD:Pitchdiameter

答案:Majordiameter

Whichoptionsbelongtothefiveimportantscrewthreadelements?

A:TurningdirectionB:ThreadnumberC:Majordiameter,pitchdiameterandminordiameterD:PitchandleadE:Treadform

答案:Turningdirection;Threadnumber;Majordiameter,pitchdiameterandminordiameter;Pitchandlead;Treadform

Inthefollowingoptions,arestandardparts.

A:GearsB:SpringsC:KeysD:Commonlyusedthreadfasteners

答案:Keys;Commonlyusedthreadfasteners

Whichoptionisthetypesymbolforpipethreads?

A:GB:TrC:MD:Rc

答案:G

Whichsurfaceisworkingsurfaceofsquareandrectangularkeyjoint?

A:SidesurfaceB:UppersurfaceC:LowersurfaceD:Endsurface

答案:Sidesurface

第七章测试

Indimensionφ60f7inadetaildrawing,φ60is,fis,7is.

A:Thenominalsizeofarevolvedsurface,thefundamentaldeviationsymbolofaninternalsurface,thetolerancesymbol.B:Thenominalsizeofarevolvedsurface,thefundamentaldeviationsymbolofaninternalsurface,theITgrade.C:Thenominalsizeofarevolvedsurface,thefundamentaldeviationsymbolofanexternalsurface,theITgrade.D:Themeasuredsizeofarevolvedsurface,thefundamentaldeviationsymbolofaninternalsurface,theITgrade.

答案:Thenominalsizeofarevolvedsurface,thefundamentaldeviationsymbolofanexternalsurface,theITgrade.

WhichofthefollownumbersareofRavalues?

A:12.8B:6.3C:3.2D:12.5E:6.4

答案:6.3;3.2;12.5

Whenashaftisrepresented,theaxisofitshouldbeplacedhorizontally.

A:错B:对

答案:对

Theoveralldimensionofapartinacertaindirectionneedsnottobegiveninconditionthatthedimensionsofeachportionhavealreadybeengiven.

A:对B:错

答案:错

Toleranceisthedifferencebetweenthepermittedmaximumandminimumsizesofapart.Italsoequalsthedifferencebetweentheupperlimitdeviationandthelowerlimitdeviation.

A:错B:对

答案:对

第八章测试

Whatofthefollowingarethecontentsofassemblydrawings?

A:AlldimensionsofthepartsB:AgroupofviewsC:Titleblock,partnumbersandpartslistD:Technicalrequirements

答案:Agroupofviews;Titleblock,partnumbersandpartslist;Technicalrequirements

Whatofthefollowingareindicatedinassemblydrawings?

A:WorkingprincipleofassemblyB:GeometricaltolerancesofpartsC:AssemblingrelationshipsofpartsD:Surfaceroughnessesofparts

答案:Workingprincipleofassembly;Assemblingrelationshipsofparts

Whatofthefollowingareincludedinpartslistsofassemblydrawings?

A:NamesofpartsB:MaterialsofpartsC:ThenumberofcertainpartsinanindividualassemblyD:Drawingscales

答案:Namesofparts;Materialsofparts;Thenumberofcertainpartsinanindividualassembly

Whatofthefollowingareofthespecialrepresentationmethodsofassemblydrawing?

A:TakingseveralpartsapartB:DrawaviewofacertainpartC:PhantomrepresentationD:Virtualrepresentation

答案:Takingseveralpartsapart;Drawaviewofacertainpart;Phantomrepresentation

Themethodswhichcanbeusedinrepresentingmachineparts,includeregularviews,sectionalviews,removedsections,andthelike,whichcanalsobeusedtorepresentassemblies.

A:对B:错

答案:对

第九章测试

InusingAutoCADsoftware,theoperationsequenceofwhichofthefollowingcommandsisstartthecommand,selecttheobjects,specifybasepoint,specifysecondpoint.

A:TrimB:MoveC:CopyD:Mirror

答案:Move;Copy

InusingAutoCADsoftware,thecommandTrimcanonlybeusedtotrimstraightlinesandarcs,whereascirclescan