数控技术英语知到章节答案智慧树2023年长春汽车工业高等专科学校

数控技术英语知到章节测试答案智慧树2023年最新长春汽车工业高等专科学校第一章测试Numericalcontrolisdesignedtocontroltheoperationofamachinetoolbyaseriesofcodedinstructionscalledaprogram.

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对Apartprogramisstoredintheformofblocksofinformation,andeachblockhasthenumericaldataneededtomanufactureasegmentofthework-piece.

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对Likeaconventionalmachinetool,theNCsystemcan’treplacethemanualactionsoftheoperatoreither.

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错数字模拟转换器的英语全称是

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CentralProcessingUnit

模拟数字转换器的英语缩写是________

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ADC第二章测试AnimportantadvanceinthephilosophyofNCofmachinetoolswastheshifttowardtheuseofcontrollerunitsinsteadofcomputersinNCsystems.

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错DNCisshortfordirectnumericalcontrol.

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对OneoftheaimsofCNCsystemsistoreplaceasmuchoftheconventionalNCsoftwarewithhardwareaspossible.

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错Thepartprogramcontainsadescriptionofthe_________.

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geometrySeveralmachinetoolsaredirectlycontrolledbyacentralcomputer,thisisthe_________.

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DNC第三章测试

AsNCmachinesneedalargecapitalinvestment,weshouldefficientlyusethem.

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对

Machiningisthemanufacturinginwhichtheworkerscanremovetheexcessmaterialofapartonamachinetool.

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对

Thefeedisdefinedasthedistancethecuttingtoolprojectsbelowtheoriginalsurfaceofthework-piece.

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错

____istherelativelateralmovementbetweenthetoolandthework-piece.

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ThefeedEDM（ElectricalDischargeMachining）referstoinChineseterm

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电火花加工第四章测试

Partprogrammersmusthaveasolidknowledgeofmachiningprocessesandknowalotofthecapabilitiesofthemachinetool.

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对

NCpartprogrammingincludesthreetasks:thecollectionofalldataneeded,thecalculationofthetoolpathandthearrangementofthosegivenandcalculateddata.

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对

Therequireddatacontainedineachlineofthemanuscriptincludesallmachininginstructionsfortransferringthecuttingtoolfromonepointtothenextone.

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错

Programmersshould________theparticularNCmachine,itscapabilities,andspecificcodes.

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befamiliarThecoreof________,however,ispreparationofthemanuscript,itsconversionintoaverifiedtape,andsubsequentediting.

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manualprogramming

第五章测试

Neverattempttomachineawork-piecewithoutfirstcheckingtheoperationofthemachine.

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对

Beforestartingaproductionrun,it’snotnecessarytoperformatrialrun.

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错

Whenusingatoolcompensationfunction,youshouldcheckthedirectionandamountofcompensation.

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对

Incorrectoperationmayleadto________.

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allright

Beforeoperationthemachine,youshouldreadthecontentsinthe_______.

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warninglabels第六章测试

CNCdiagnosticsupportatpresentincludesfourbasiccategories:start-updiagnostics,

on-linediagnostics,off-linediagnosticsandbackgrounddiagnostics.

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错

Start-UpDiagnosticsareadiagnosticroutinethatregularlyoperateautomaticallywhentheCNCisswitchedon.

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对

Off-LineDiagnosticsaremanualdiagnosticswhichareintendedforthorough

maintenanceperformedbytrainedtechnicians.

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对

Numericalcontrolmachineoperatorssetupandtend________.

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CNC

With________basedCNCmachinetoolcontrollers,maintenanceandrepairarenolongeranissue.pc

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PC第七章测试

“Strut-machiningdepartment”means“柱式机床部门”.

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对

TheCNCcan‘tsendmessagestothoseusersthatitsWindowsaccountcanaccess.

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错

FactoryAutomation(FA)isbecomingthedevelopingtrendoffactories.

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对

Byconnecting____tothepersonalcomputerandtheCNC,theprogrammercantransferprogramsfromthecomputertotheCNC.

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acable

WhatdoesCADmean?

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ComputerAidedDesign第八章测试

NotonlymostofmajormachinetoolmanufacturersbutalsotheCNCsuppliersofferawidevarietyofend-usertrainingonCNCmachines.

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对

DuringtheearlyyearsofhardwiredNC,built-indiagnostictoolsexisted.

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错

Theemphasishaschangedfrom“howtofixit”to“howitworks”.

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错

Thefunctionofdirectcurrentregulatedpowersupplyistoinputanalternatingcurrentpowerof220volts,sothatitcanoutput__________.

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directcurrent24voltsvoltage

FANUCcontrolsystemworksundera_________voltsvoltage.

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directcurrent24第九章测试

Althoughtherobotsresemblehumanbeings,theycannotdotheworkofhumans.

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错

Scientistsaredevelopinganintelligentrobotthatcan“see”and“touch”andmakedecisionslikehumanbeings.

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对

ThetechnologyofrobotsiscompletelythesameastheNCtechnologyineveryway.

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错PC(ProportionalController)referstoinChineseterm

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比例控制器Itisaverybigopportunityforhuman;thechallengeis_______itwisely.

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touse第十章测试

Intoday’saerospaceandaeronauticsindustry,acompleteaircraftmaybedesignedwithoutaCAD/CAMsystem.

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错

AdvancedCAD/CAMsystemsincludenotonlysolidgeometrymodelingcapabilitybutalsoNCverificationprograms.

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对

Generallyspeaking,aCADsystemisananalyticto