Mechanical Engineering Practice 金工实习知到智慧树章节测试课后答案2024年秋南京理工大学

MechanicalEngineeringPractice金工实习知到智慧树章节测试课后答案2024年秋南京理工大学绪论单元测试

Inthiscourse,whichpartdoestheknowledgeof“injectionmolding”belongto?

A:CNCTurningB:IndustrialDesign;C:3Ddigitalmeasurement;D:Manufacturing;

答案:Manufacturing;

第一章单元测试

Thepartingplaneisthecontactsurfacebetweenthestationaryandmovingsidesofthemold.

A:对B:错

答案:对Duringtheplasticationstage,thepolymermeltisforcedfromthebarrelofthemoldingmachineandintothemold.

A:对B:错

答案:错Afterthemoldcavityisfilledwiththepolymermelt,thepackingstageprovidesadditionalmaterialintothemoldcavityasthemoltenplasticmeltcoolsandcontracts.

A:对B:错

答案:对Aninjectionmoldhasmanystructurestoaccomplishthefunctionsrequiredbytheinjectionmoldingprocess.

A:对B:错

答案:对Aninjectionmoldisconstructedofanumberofplates,boltedtogetherwithsocketheadcapscrews.

A:对B:错

答案:对

第二章单元测试

Whetherapartisqualifieddependsfirstonwhetherithasreachedthebasicsize.

Justequaltothebasicsizemustbequalifiedproducts.（）

A:错B:对

答案:错Dimensionaldeviationisthedifferenceofacertainsizeminusitsbasicsize,sothesizedeviationcanbepositive,negativeandzero.

（）

A:对B:错

答案:对Positiontolerancecanbedividedintothreecategories:directionaltolerance,positioningtoleranceandrunouttolerance.（）

A:错B:对

答案:对Thesurfaceroughnessofpartsisdirectlyrelatedtotheprocessingmethod.（）

A:错B:对

答案:对

Surfaceroughnessbelongstomicrogeometricerror.

（）

A:错B:对

答案:对Thesurfaceroughnesssymbolrepresentsthemachinedsurfaceobtainedbymaterialremoval.

（）

A:对B:错

答案:错Whenmeasuringworkpiecewithverniercaliper,themeasurementerrorwillincreaseiftheforceistoolargeortoosmall.

（）

A:错B:对

答案:对Theouterdiametermicrometerisameasuringtoolformeasuringapertureandgroovedepth.

（）

A:对B:错

答案:错Thevernieruniversalanglerulercanmeasureanyanglefrom0to360degrees.

（）

A:错B:对

答案:错Relativemeasurementmethodisusedwhenmeasuringlengthwithpercentilemeter.

（）

A:对B:错

答案:对

第三章单元测试

WhileearlierworkinJapanisquitewell-documented,provingthatthisconceptcouldberealized,itwasthepatentbyCharlesHullthatisgenerallyrecognizedasthemostinfluential

sinceitgaveriseto3DSystems.

A:错B:对

答案:对WhichapparatuswasAMtechnologycommercializedwith?

A:Directmetallasersintering(DMLS)B:selectivelasersintering(SLS)

C:Stereolithography(SLorSLA)

D:FusedDepositionModeling(orFDM)

答案:Stereolithography(SLorSLA)

WhicharethecharacteristicsofAMtechnology？

A:near-netshapingB:

instantlocalproductiononaglobalscale

C:shortleadtime

D:superiorflexibility

答案:near-netshaping；

instantlocalproductiononaglobalscale

；shortleadtime

；superiorflexibilityNear-netshapingisanotherimportantfeatureofAMtechnology,whichsignificantlyminimizesmaterialuseandwaste.AjointstudyhasshownthatAMisabletoreducetheconsumptionofrawmaterialsbyupto

A:35B:75%C:50D:65

答案:75%WhichisthemostwidelyusedAMtechniqueatthepresentday？

A:FusedDepositionModeling(orFDM)

B:Directmetallasersintering(DMLS)

C:

selectivelasersintering(SLS)

D:Stereolithography(SLorSLA)

答案:FusedDepositionModeling(orFDM)

WhicharethesametechniqueswithAdditiveManufacturing？

A:additivefabricationB:RapidPrototypingC:freeformfabricationD:3Dprinting

答案:additivefabrication；RapidPrototyping；freeformfabrication；3DprintingWhichcanbeusedbyAdditiveManufacturing？

A:sheetsB:

liquidsC:wires

D:powders

答案:sheets；

liquids；wires

；powders

AMmachineisaWhatYouSeeIsWhatYouBuild(WYSIWYB)processthat’sparticularlyvaluablethemorecomplexthegeometryis.

A:对B:错

答案:对Wellsuitingtherequestsofmodernmanufacturingclimate,AdditiveManufacturingisviewedasthenewindustrialrevolution,makingitswayintoacontinuouslyincreasingnumberofindustries.

A:对B:错

答案:对WherecouldAdditiveManufacturingbeused?

A:defense

B:automotiveC:medical

D:architecture

E:jewelryF:artG:aerospace

答案:defense

；automotive；medical

；architecture

；jewelry；art；aerospace

第四章单元测试

WecancompleteanautomaticprogrammingofNClathebasedon(

)software.

A:MasterCAM.B:CREOC:CAD

答案:MasterCAM.weneedtomakethemodelinginthesoftwaressuchas（

）

A:CreoB:SolidworksC:AutoCAD

答案:Creo；Solidworks；AutoCADAfterthepartspatternanalysis,weneedtoplaitthemachiningtool'spathanddynamic

simulatethepathbasedontheMasterCAM.

A:错B:对

答案:对WhenwedoprogramminginMasterCAMweneedtomovethedrawingtotheoriginofthecoordinates.

A:对B:错

答案:对Afterwechoosethelathe,weneedtoensuretherouteoftheknifeaccordingtotherequirementsofthepartsprocessing.

A:对B:错

答案:对Wecanchoosethelatheaccordingtotherequirementsofthepartsprocessing.

A:错B:对

答案:对Theprocessingmethodsincludemillingtheshape,millingtheplanar,chamferring,drillingholesandsoon.

A:对B:错

答案:对WeChoosethe

keyseatcutteraccordingtotheprocessingrequirements.

A:对B:错

答案:对Weneedselecttheparametersoftheroughmachiningandthefinishmachining.

A:对B:错

答案:对InMasterCAMwecanseetherouteoftheknife.

A:错B:对

答案:对

第五章单元测试

Industrialdesignappearedbeforetheindustrialrevolution.（

）

A:错B:对

答案:错Serviceisalsoakindofproduct.（

）

A:对B:错

答案:对

Productdesignincludes（

）.

A:innovativedesignB:

improveddesign

C:duplicateddesignD:conceptualdesign

答案:innovativedesign；

improveddesign

；conceptualdesign

ThesuccessoftheOXOpeelerisdueto(

).

A:lowpriceB:

innovativeapplicationofmaterialsC:beautifulappearance

D:antiskidfeatures

答案:

innovativeapplicationofmaterials；beautifulappearance

；antiskidfeatures

MUJIproductshaveveryrichcolors.（

）

A:错B:对

答案:错PayingattentiontoindustrialdesignisApple'swaytosuccess.（

）

A:错B:对

答案:对Classicblueisthepopularcolorof(

).

A:2021

B:2019

C:2018D:2020

答案:2020

Whenweareresearchingexistingproducts,thefollowingpointsneedtobeconsidered.(

)

A:appreciationB:function

C:price

D:

material

答案:appreciation；function

；price

；

materialDesignsketchcanhelpdesignerstoclarifydesignideasquickly.

（

）

A:对B:错

答案:对Whichofthefollowingisnotafunctionofrenderings?(

)

A:refinetheprototypeB:productschematicC:communicatewithdownstreamindustryD:exhibitionmaterial

for

selling

答案:communicatewithdownstreamindustry

第六章单元测试

Theuseofmaterialsbeginsin().

A:stoneage

B:bronzeage

C:informationageD:ironage

答案:stoneage

Naturalmaterialsinclude().

A:clayB:fibersC:feather

D:bone

答案:clay；fibers；feather

；bone

Structuralmaterialsinclude().

A:steel

B:iron

C:semiconductorD:aluminum

答案:steel

；iron

；aluminum

Functionalmaterialsinclude().

A:superconductingmaterials

B:magneticmaterialsC:iron

D:steel

答案:superconductingmaterials

；magneticmaterialsIroncanbeclassifiedinto().

A:greycastiron

B:whitecastironC:steelD:spheroidalgraphitecastiron

答案:greycastiron

；whitecastiron；spheroidalgraphitecastiron

Stepsofmetallographicspecimenspreparationinclude().

A:mounting

B:polishingC:grinding

D:etching

答案:mounting

；polishing；grinding

；etching

Materialscienceistheinvestigationoftherelationshipamong().

A:properties

B:structure/composition

C:processing

D:performance

答案:properties

；structure/composition

；processing

；performanceObservedphasesduringopticalmicroscopyobservationofironandsteelinclude().

A:γ-austenite

B:CementiteC:δ-ferrite

D:α-ferrite

答案:γ-austenite

；Cementite；δ-ferrite

；α-ferrite

Pearliteisatwo-phased,lamellarstructurecomposedofalternatinglayersof().

A:ferriteandcementiteB:austeniteandcementiteC:liquidandcementiteD:austeniteandferrite

答案:ferriteandcementiteThedeterminationof()onspecimensisimportantforqualitycontrol.

A:strengthB:hardnessC:phasediagram

D:grainsize

答案:grainsize

第七章单元测试

Digitaldesignandmanufacturemainlyincludes()

fordatatransmission.

A:DigitaltoolsB:DigitalmeansC:CAD

答案:DigitalmeansDigitalistheprocessthatintegratedapplies

()totransformtraditionalcontentandtechnologysystem.

A:informationtechnologyB:

networktechnologyC:computertechnology

答案:informationtechnology；

networktechnology；computertechnologyDigitizationisthroughouttheprocess

ofProductLifeCycle.（）

A:对B:错

答案:对

Manufacturingresources

just

include

technicalresources

and

materialresources.（）

A:对B:错

答案:错Inthecompany-wideprogramlayer,wegenerallyuse

ManufacturingExecutionSystems.（）

A:对B:错

答案:错Accordingtotheshapeandprocessingrequirements,programmercompilesmachiningprocessintomachiningprogram.（）

A:对B:错

答案:对Industry