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1、高级食品检验工技能鉴定试题二（Advancedfoodinspectiontechnicianqualificationtestquestionstwo）FoodinspectionengineeradvancedtheoryknowledgetestpaperMattersneedingattentionregionTicketnumberFullnameUnitname1,examinationtime:120minutes.2.Firstofall,pleasefillinyourname,ticketnumberandthenameoftheunitin
2、theenclosedformofthetestpaper.3,pleasereadthequestionsandanswersofvariousquestionscarefully.Fillinyouranswersintheprescribedposition.4,don'tScribbleonthepaper,donotfillinrelatedcontentinstandardsealarea.ItemnumberoneortwototalscoreScoreScoremakerFirst,theindividualchoice(firstquestio
3、ns-eightiethquestions,chooseacorrectanswer,thecorrespondinglettersintothebracketsinthetitle.1pointsforeachquestion,80pointsout1,ureasetestpositive(color).A,blackB,redC,greenD,blue2,thefollowingstatementiscorrectA,diodewithoutPNjunction,transistorhasaPNjunctionB,diodehastwoPNjunction,
4、thetransistorhasthreePNjunctionC,thediodehasaPNjunction,andthetransistorhastwoPNjunctionD,diodesandtransistorshaveaPNjunction3,thepHvalueofthesolutionmeasuredbytheacidity,shouldbeselectedafterpreheating()positioning.ThestandardacidsolutionsofA,0,and1mol/Llocatethestandardbasesolution
5、sofB,0,and1mol/LClocateDwithabuffersolutionof6and68withPHandlocatewithatleast2standardbuffersolutions4.ThefollowinganalysismethodsdonotbelongtoinstrumentalanalysisA,spectrophotometry,BandelectrochemicalanalysisC,chromatography,Dandchemicalprecipitationgravimetricmethod5,amongthefollo
6、wingpersonnel,thesensoryexaminationofthefoodcannotbecarriedout.A,physicallyhealthy,B,highlysensitivepeopleC,personalhygieneconditionisbetter,D,prejudicetotheproductsinspectedThetemperaturecontroller6,mufflefurnaceiswidelyused,bywhich().A,voltmeter,relayandelectriccontactmercurythermo
7、meterB,differentialbarandrelayC,voltmeter,relayandthermistorD,voltmeter,relaysandresistors7,thefollowingstatementisincorrectTheinternalresistanceoftheAandvoltmeterisverylargeTheBandvoltmeterareconnectedinparallelwiththecircuitCinordertoexpandtherange,aresistorshouldbeconnectedinparal
8、lelonthevolt
