工程制图（双语）知到智慧树章节测试课后答案2024年秋吉林大学

工程制图（双语）知到智慧树章节测试课后答案2024年秋吉林大学第一章单元测试

Accordingtonationalstandard,whichofthefollowingarepreferredscales?

A:4：1B:3：1C:2：1D:5：1

答案:2：1；5：1Whichofthefollowingletteringheightsareprovidedinnationalstandards?

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

答案:7；10；5Thesymbol"GB/T14689-2008"denotesthattheconcernnationalstandardiscompulsory.

A:对B:错

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

第二章单元测试

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:错B:对

答案:错AccordingtothedifferenceofXcoordinatesofthetwopoints,wecantelltherelativepositionofthesetwopointsinfront-reardirection.

A:错B:对

答案:错

第三章单元测试

Whichofthesolidcanwemakestraightlinesonitssurfaces?

A:CylinderB:SphereC:PrismD:ConeE:Pyramid

答案:Cylinder；Prism；Cone；PyramidWhenweneedtomakeapointonthesurfaceofasolid,onwhichofthefollowingsolidtheauxiliarylatitudecirclemethodcanbeused?

A:SphereB:PrismC:ConeD:Pyramid

答案:Sphere；ConeWhenmakingprojectionsofpointsintheconicalsurfacesofconesandsphericalsurfacesonspheres,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

第四章单元测试

Whentheviewsofacompositesolidformedbyaddingaredrawn,thesolidcanbeconsideredasformedbysmallfeatures,andthentheviewsofthefeaturesaredrawnonebyone.Intheprocessofdrawingviewsofthefeatures,weshouldkeepinmindthatthecompositesolidisawholesolid.

A:对B:错

答案:对Whentheviewsofacompositesolidformedbycuttingaredrawn,thesolidcanbeconsideredasaextrudingprismandthencutbydifferentplanes.

A:对B:错

答案:对Whichoftheusagesofcenterlinesinviewsarecorrect?

A:ExpressinvisibleoutlinesB:ShowtheprojectionofsymmetricplaneofasolidinacertaindirectionC:ExpresscrossedcenterlinesofcircularprojectionsD:Expressaxisofsolidsofrevolution.

答案:Showtheprojectionofsymmetricplaneofasolidinacertaindirection；Expresscrossedcenterlinesofcircularprojections；Expressaxisofsolidsofrevolution.Theisometricprojectionofafrontalcircleisanellipse.Theminoraxisoftheellipseisincoincidencewith,andthemajoraxisoftheellipseisperpendicularto.

A:axisZ1,axisZ1B:axisX1,axisX1C:axisY1,axisX1D:axisY1,axisY1

答案:axisY1,axisY1Theisometricprojectionofaprofilecircleisanellipse.Theminoraxisoftheellipseisincoincidencewith

,andthemajoraxisoftheellipseisperpendicularto

.

A:axisX1,axisX1B:axisX1,axisZ1C:axisZ1,axisZ1D:axisY1,axisY1

答案:axisX1,axisX1

第五章单元测试

Whatrepresentationmethodsareincludedinthemethod'view',thatis,non-sectionedview?

A:PrincipleviewB:PartialviewC:ReferrencearrowviewD:Inclinedview

答案:Principleview；Partialview；Referrencearrowview；InclinedviewAccordingtothecuttingrange,sectinalviewsinclude.

A:OffsetsectionB:FullsectionalviewC:HalfsectionalviewD:Broken-outsection

答案:Fullsectionalview；Halfsectionalview；Broken-outsectionAccordingtothedifferentstructuresofthemachineparts,differenttypesofcuttingsurfacescanbeused.Thecuttingsurfacesinclude.

A:SeveralparallelcuttingplanesB:SeveralintersectingcuttingplanesC:SinglecuttingplaneD:Singlecylindricalsurface

答案:Severalparallelcuttingplanes；Severalintersectingcuttingplanes；Singlecuttingplane；SinglecylindricalsurfaceChoosethepropertiesofthegeneralsectionlinefromthefollowingdescription.

A:HavingthesameintervalB:ParalleltoeachotherC:45°or135°abouthorizontallineD:Thinsolidline

答案:Havingthesameinterval；Paralleltoeachother；45°or135°abouthorizontalline；ThinsolidlineInoccasionsofrepresentingarelativelycomplexpart,threestandardviewsarenotenoughtoshowallthedetailsofthepartclearlyandcompletely.

A:错B:对

答案:对

第六章单元测试

Whichscrewthreadtermisthenominaldiameter?

A:MinordiameterB:PitchdiameterC:CrestD:Majordiameter

答案:MajordiameterWhichoptionsbelongtothefiveimportantscrewthreadelements?

A:ThreadnumberB:Majordiameter,pitchdiameterandminordiameterC:PitchandleadD:TurningdirectionE:Treadform

答案:Threadnumber；Majordiameter,pitchdiameterandminordiameter；Pitchandlead；Turningdirection；TreadformInthefollowingoptions,arestandardparts.

A:GearsB:CommonlyusedthreadfastenersC:SpringsD:Keys

答案:Commonlyusedthreadfasteners；KeysWhichoptionisthetypesymbolforpipethreads?

A:GB:MC:RcD:Tr

答案:GWhichsurfaceisworkingsurfaceofsquareandrectangularkeyjoint?

A:SidesurfaceB:UppersurfaceC:LowersurfaceD:Endsurface

答案:Sidesurface

第七章单元测试

Indimensionφ60f7inadetaildrawing,φ60is,fis,7is.

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

答案:Thenominalsizeofarevolvedsurface,thefundamentaldeviationsymbolofanexternalsurface,theITgrade.WhichofthefollownumbersareofRavalues?

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

答案:12.5；3.2；6.3Whenashaftisrepresented,theaxisofitshouldbeplacedhorizontally.

A:对B:错

答案:对Theoveralldimensionofapartinacertaindirectionneedsnottobegiveninconditionthatthedimensionsofeachportionhavealreadybeengiven.

A:错B:对

答案:错Toleranceisthedifferencebetweenthepermittedmaximumandminimumsizesofapart.Italsoequalsthedifferencebetweentheupperlimitdeviationandthelowerlimitdeviation.

A:错B:对

答案:对

第八章单元测试

Whatofthefollowingarethecontentsofassemblydrawings?

A:AgroupofviewsB:AlldimensionsofthepartsC:Titleblock,partnumbersandpartslistD:Technicalrequirements

答案:Agroupofviews；Titleblock,partnumbersandpartslist；TechnicalrequirementsWhatofthefollowingareindicatedinassemblydrawings?

A:WorkingprincipleofassemblyB:GeometricaltolerancesofpartsC:AssemblingrelationshipsofpartsD:Surfaceroughnessesofparts

答案:Workingprincipleofassembly；AssemblingrelationshipsofpartsWhatofthefollowingareincludedinpartslistsofassemblydrawings?

A:DrawingscalesB:NamesofpartsC:MaterialsofpartsD:Thenumberofcertainpartsinanindividualassembly

答案:Namesofparts；Materialsofparts；ThenumberofcertainpartsinanindividualassemblyWhatofthefollowingareofthespecialrepresentationmethodsofassemblydrawing?

A:DrawaviewofacertainpartB:VirtualrepresentationC:PhantomrepresentationD:Takingseveralpartsapart

答案:Drawaviewofacertainpart；Phantomrepresentation；TakingseveralpartsapartThemethodswhichcanbeusedinrepresentingmachineparts,includeregularviews,sectionalviews,removedsections,andthelike,whichcanalsobeusedtorepresentassemblies.

A:错B:对

答案:对

第九章单元测试

InusingAutoCADsoftware,theoperationsequenceofwhichofthefollowingcommandsisstartthecommand,selecttheobjects,specifybasepoint,specifysecondpoint.

A:MoveB:MirrorC:TrimD:Copy

答案:Move；CopyInusingAutoCADsoftware,thecommandTrimcanonlybeusedtotrimstraightlinesandarcs,whereascirclesca