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1、高级电工无纸化考试体验标答对照8（Advancedelectricianpaperlesstestexperiencestandard8）Advancedelectricianpaperlesstestexperiencestandard8PaperlesstestexperiencestandardanswercontrolAtotalof100questions.1.Thehigherthetemporaryloadrateofacwelder,thelongertheweldingtime.Youranswer:2.Transformercanc
2、hangethedcvoltage.Youranswer:3.Thetype3240organicsiliconepoxylaminatedglassclothplatehasaclassBheatresistancerating.Youranswer:4,electromagnetelectromagneticsuctionisusedtomanipulateandtractionmechanisminordertoachievethedesiredaction,orholdingfixedpartsusedinsteel,ferromagnetic
3、objectsliftinghandlingandsoon,soitisalsoconvertselectricalenergyintomechanicalenergyofalowvoltageelectricalappliances.Youranswer:5.Thebrakingprincipleofelectromagneticclutchis:whenthemotorisstill,thebrakeelectromagnethasnoelectricity.Whenthemotorlosespower,thebrakingelectromagne
4、tmovesthebrake.Youranswer:6.Thesingle-toothedfileissuitableforfilingsoftmaterials,andthedouble-toothpatternfileisapplicabletofilehardmaterial.Youranswer:7.Asbestosproductsincludeasbestosyarn,thread,rope,paper,board,braid,etc.,withthecharacteristicsofheatpreservation,temperaturer
5、esistance,acidandalkaliresistance,corrosionresistance,etc.,butnoinsulation.Youranswer:8.Switchingswitchisalsoknownascombinationswitch,whichisusedaspowersupplyswitchintheelectriccontrolcircuitofthemachinetool.Youranswer:9.Themainfunctionofsiliconinsiliconsteelsheetistoimprovethem
6、agneticconductivity,reducethehysteresislossandreducetheagingofthesiliconsteelsheet.Youranswer:Theimpedancevoltageisthemagnitudeoftheimpedancedropwhenthetransformerisintheratedcurrent.Youranswer:IfdoΔconnection,three-phasesymmetricalload,eachphaseofloadimpedancefor10Ω,meetonlinev
7、oltageof380vthree-phaseaccircuit,thecircuitofthelinecurrentis38a.Youranswer:12.Thelowvoltageofthepowersupplywillmakethesecondaryvoltageoftherectifierdcarcweldertoolow.Youranswer:13.Thedcgeneratorisgeneratedinthearmaturewindingelementtocommunicatetheelectromotiveforce,exceptthatt
8、hedcelectromotiveforcecanbeoutputduetotheadditi
