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1、高级电工无纸化考试体验标答对照8（Seniorelectricianpaperlessexaminationexperiencemarkingcontrol8）Seniorelectricianpaperlessexaminationexperiencemarkingcontrol8PaperlessexaminationexperiencecomparisonAtotalof100questions(Note:theredmarkertopicforyourmistakes.)1,thehigherthetemp
2、oraryloadrateofACweldingmachine,thelongertheweldingtime.Correctanswer:putyouranswer:2.ThetransformercanchangetheDCvoltage.Thecorrectanswer:Xyouranswer:3,typeofsiliconeepoxyglasslaminateheat-resistantgrade3240gradeB.Thecorrectanswer:Xyouranswer:4,theelectromagn
3、etistheuseofelectromagneticforcetomanipulateandtractionmechanismtocompletethedesiredaction,orusedforsteelpartsholdingfixed,ferromagneticobjectlifting,itisconvertedtoelectricalenergyofalow-voltageelectricalmechanicalenergy.Correctanswer:putyouranswer:5,theelect
4、romagneticclutchbrakingprincipleis:whenthemotorisstationary,thebrakeelectromagnetwithoutelectricity.Whenthemotorisoutofpower,thebrakeelectromagnetmovestobrake.Correctanswer:putyouranswer:6,singletoothsuitabletofilesoftmaterial,doubleridgesaresuitabletofilehard
5、materials.Correctanswer:putyouranswer:7,asbestosproductsarestonecottonyarn,wire,rope,paper,plate,wovenbeltandotherkinds,withheatpreservation,temperatureresistance,acidandalkaliresistance,anti-corrosionandothercharacteristics,butnotinsulation.Thecorrectanswer:X
6、youranswer:8,theswitchisalsocalledthecombinationswitch,whichisusedintheelectriccontrolcircuitofthemachinetoolastheswitchofthepowersupply.Correctanswer:putyouranswer:9.Themainroleofsiliconinsiliconsteelsheetistoimprovethepermeability,reducethehysteresisloss,and
7、reducetheagingphenomenonofsiliconsteelsheet.Correctanswer:putyouranswer:10.Theimpedancevoltageisthemagnitudeoftheimpedancevoltagedropwhenthetransformerisratedcurrent.Correctanswer:putyouranswer:11,three-phasesymmetricalloadtododeltaconnection,ifeachphaseloadim
8、pedanceis10ohms,andthelinevoltageis380Vthree-phaseACcircuit,thenthecircuitcurrentis38A.Thecorrectanswer:Xyouranswer:12,thepowersupplyvoltageistoolowwillmakerectifierDCarcweldingmac
