下载

0下载券

加入VIP
  • 专属下载特权
  • 现金文档折扣购买
  • VIP免费专区
  • 千万文档免费下载

上传资料

关闭

关闭

关闭

封号提示

内容

首页 空调安装上岗资质题(Qualification of air conditioning inst…

空调安装上岗资质题(Qualification of air conditioning installation).doc

空调安装上岗资质题(Qualification of air …

俄是有多爱迩_
2018-08-05 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《空调安装上岗资质题(Qualification of air conditioning installation)doc》,可适用于社会民生领域

空调安装上岗资质题(Qualificationofairconditioninginstallation)空调安装上岗资质题(Qualificationofairconditioninginstallation)ArbitrarytworelativemodulationC,adjusttheairconditioningpowerline,anytworelativeadjustmentD,userpowerproblems,allowinguserstosolvetheirown,outdoorinstallationofredundantlinesshouldbe(C)A,cutawayB,straightenoutthenaturalplaceC,asfaraspossibleoutsidethemachinebehindtheD,thediskintoagroupThestandardworkingconditionofairconditioningheatinginourcountryisindoortemperatureandoutdoortemperature(A)A,,B,,C,,D,,(two)MCQs(eachofpoints,points),RAisakindofHFCsrefrigerantcomposedof(AB)tworefrigerantsmixedbymassfractionofandA,RB,RC,RD,R,theairconditionerisnotcooledafterstartingthenewmachine,thecauseofthefailureis:(ABCD)A,operationmodeisincorrect,B,twoorthreewayvalveisnotopen,C,refrigerantleakageD,voltageisinsufficientWhentheairconditionerisinstalled,theconnectingpipeisfoldedflat,andthepossiblefailurephenomenonis(ABC)A,themachineoperateswiththeairflowsoundB,therefrigerationheatingeffectisbadC,compressoreasytoheatD,powertrip,whichofthefollowinginstallationmaycauseairconditioningrefrigerantleakage(ABCD)A,flaredflaredfinishisnotenough,toobig,toosmall,B,whenthenozzleandconeisnotrightC,airconditioninginstalledaftergreatlymovingjointsD,tubeunderburn,solderjointisnotsmoothWhatarethemistakesintheinstallationofairconditioners(ABCD)A,insidethemachine,afterthehandtightened,forgettousewrenchfasteningB,thepipelinethroughthewall,thewaterpipescratch,flattenC,thevalveisnotfullyopenedwhentheinstallationisfinishedWhenthepipeisDandthepipelineisnotsetaside,theleakageofthepipeiscausedbytheleakageofthepipeafterinstallation,theinstallationofairconditionerinsideandoutsidethemachineshouldpayattentiontothefollowing:(ABEF)A,avoidtheplacewhereBhasstrongcorrosivegasandavoidthedirectactionofstrongelectricfieldandmagneticfieldTheCandtheexternalmachinemustbehungandinstalledinsteadofonthegroundorontheplatformTheinstallationoftheDandtheexternalmachinemustbelowerthantheinternalmachineE,avoidvibrationeasilyF,maintenance,maintenanceconvenienceandventilationreasonableplace,beforetheinstallationofairconditioning,theuser'shometodois(ABCD)A,seewhethertheroommatchesB,checktype(cargo,ticket,singlethreeunified)C,unpackinginspectionmachineD,checkinguserhomepower,installationenvironment,highvoltageprotectiveswitchintheairconditioningroleiswhentheexhaustpressureistoohigh,automaticallycutoffthemaincircuitoftheairconditioner,ABCDcommonprotectionA,condenserseriousdirtB,fanfault,insufficientcoolingairvolumeC,refrigerantchargeexcessiveD,thereisalargeamountofairorothernoncondensablegasinthesystem,filterdirtycausedbycommonfaults(ABCD)A,internalmachinenoiseisbig,Binternalwaterleakage,CantifreezingprotectionDpooreffect,highaltitudeworkersneedregularinspection,sufferingfromthefollowingdiseasesshouldnotbehighaltitudeoperations(ABCD)A,hypertension,B,hypotension,C,heartdisease,DepilepsyThree,judgmentquestions(pointspersubject,points)(V),connectinginsideandoutsidemachinepipelinethroughtheholeinthewall,indoorandoutdoorsidesideofthehighandlow(x),the""intheairconditioner"KFRGWA"meansthatthepowerconsumptionoftheairconditioneriswattshour(x)Whentheairconditionerisheated,theinnerairvelocityislowandtheoutlettemperaturewillbehigh,sosettinglowwindspeedcanimprovetheheatingeffect(x)Thetestconditionofrefrigeratingcapacityofroomairconditionerinourcountryisthattheindoorsidedrybulbtemperatureisdegrees,andtheoutsidesidedrybulbtemperatureisdegrees(x),theinstallationofnewrefrigerantairconditionertousespecialtools,theoriginalRsystemtoolscannotbeused(*),splittypeairconditionerconnectingpipeisnotlongenough,canbeusedfortubesinsteadoffortubes,inordertosavecosts(x),theairconditionercanuseventilationanddehumidificationfunctioninanytemperatureenvironment(V),themobilephonecameracanbeusedtodetectwhethertheremotecontrollercantransmitsignal(x),ifyouinstallairconditioninginaremotemountainarea,thecompressorwillnotbuzzwhentestingmachine,unplugtheairconditionerplug,usemultimetertomeasurethevoltageofV,indicatingthatthepowersupplyisnormal,thecompressorisbroken(x),theairconditionerinstallationtestmachine,theinternalmachineoutlettemperatureislower,indicatingthatthegreaterthecoolingcapacity,thebetterthecoolingeffect(V),RAairconditioning,installationrequirestheuseofvacuumpumpandvacuumpumptopreventbackflowoflubricatingoilintherefrigerationsystem(x),whentheairconditionerisinstalled,ifthethickpipeintheconnectingpipeisbentdead,therewillbenoheating,buttherefrigerationisnormal(V),undernormalcircumstances,inverterairconditionerinhighfrequencyoperation,increasingthepoweroftheactualpowerconsumptionalsoincreases(x),aslongastheairconditionerinsidethemachineishigherthantheoutletandthewaterpipeisnotblocked,nomatterhowtheoutletpipeisplaced,itwillnotcauseleakage(x),outdoorwork,youcanbuckletheseatbeltontheoutdoorframeoftheairconditioner(V),airconditioninginstallationrequiresextendedpowerlineandsignalline,shouldbestaggeredjointswillbelengthenedlineconnectionprocessing,inordertoavoidjointleakagebetweenshortcircuit(V),installationservicesneedtochargeusers,mustshowthecompanychargesapricelist(V),influoridemachineinstallation,pipemorethanmetersforeveryincreaseof,anoilreturnbendTheheightofreturnoilisaboutcm(V),safetybeltuseformorethanayearwithoutinspectioncannotcontinuetouse(x),wheninstallingairconditioningoperation,iftheuserisparticularlyenthusiastic,pleasesmoke,youshouldnotrefuseFour,theanswer(points,points)Afterthesplittypeairconditioninginstallation,usesoapywatertocheckwhetherthereisleakageoffluorineWhatistheoperationInstalledinsideandoutsidethemachine,connectthelineandtightenthevalveopentwo,secondstoclosethevalve,thesystemeachpartsoonfilledwithgaseousrefrigerantisgreaterthantheairpressureofMpa,thestaticpressure(aboutkg)forleakdetectionintheleakageofsuspiciouspointscoatedwithsoapandwater,ifthebubbleformationisLeakageOnsitejudgment,usuallyobservedminuteswithoutbubblesappeartobequalifiedWhatarethestepsofvacuuminstallationforRAnewrefrigerantairconditionerStepis:()installtheinternalandexternalmachine,connectthepipelineandfasten,thevalvedoesnotopen()inthetrachea(crudepipe)threewayvalverepairportwithacheckvalvewithacheckvalve(alsocanbebetweentherepairportandvacuumpumpthroughthehosewithpressuregaugevalveconnection),payattentiontoeachconnectionshouldbetight()openthevacuumpump,openthecheckvalvetostartvacuum,vacuumtimeisabouthalfanhour()afteracertainperiodoftime,thecheckvalveisclosedfirst(thepressuregaugevalveisfirstclosedwiththepressuregaugevalve),andthenthevacuumpumpisclosed()withsixanglewrench(valvewrench)opentube(tube)twovalvedegrees(circle)offforaboutseconds,thismachineandaconnectingpipelinehasbecomeapositivepressurewithsoapandwatertodetectthejointpositiontoensurenotleaktight()removetheconnectionbetweenthehoseandtherepairport,openthetwoorthreewayvalve,turnontheairconditioningtestmachine,andthenvacuumtheinstallationendEditor'snote:homeappliancemaintenanceForum(WwwJdwxInfo)IsawseveralarticlesontheInternetFETjudgment,Fengxiantoeveryonereadingdialpointermultimeterto"RXK"file,andelectriczeroOnesideofthefieldeffecttransistorfacesitself,fromlefttorightinturn:G(ZhaJi),D(drain),S(source)TheblackpenisconnectedwiththeGpole,andthentouchtheredpenrespectivelyDandSpoles,andthenonthepen,suchasthetwotests,themeasuredresults,themeterpointerdoesnotmove,thenthepreliminaryjudgingFETisgoodFinally,theblackprobeconnectedtotheD,theredpenisconnectedwiththeSelectrode,themultimeterpointershouldnotmovethenonthepen,then,atthistime,themultimeterpointershouldbeswingingtotherightThroughthesetwojudgments,thefieldeffecttransistorisgoodIfthemeasuredresultdoesnotagreewiththeabove,theFETisbadEitherbreakdownorbadperformanceDeterminetheelectrodeoffieldeffecttransistorDeterminethegridofthetubefirstThemultimeterisplacedintheR*stalls,ablackelectrodeprobeconnectedtothepipe,theredpensequentiallytouchtheothertwoelectrodesIfthevalueofresistancemeasuredtwotimesislarge,indicatingthatthePchanneltubeThegateisconnectedandtheblackpenIfthetwomeasuredvaluesareverysmall,thatistheNchannel,andtheblackpenisconnectedtothegateIftheaboveconditionsarenotchanged,anotherelectrodecanbereplacedandmeasuredaccordingtotheabovemethoduntilthegridisjudgedThesourceanddrainofcommonjunctionfieldeffecttransistorsaresymmetricalinmanufacturingprocess,sotheycanbeusedinterchangeably,sothegateanddraincannolongerbesetTheresistancebetweenthesourceanddrainisnormalwhenitisaboutseveralthousandsohmsEstimatetheamplificationcapabilityoffieldeffecttransistorsThetableisplacedinR*file,theblackpenisconnectedtothedrainD,andtheredpenisconnectedtothesourceSAtthispoint,thepointerpointsouttheresistancevaluebetweenthedrainandthesourceHoldthegateGbyhand,handsshouldbelargerswing,swingthebigger,strongercapabilityofamplifyingtubeIfthepointerswingissmall,sincethetubeamplificationabilityisveryweakIfthehandsdonotmove,thathaslosttheabilitytoenlargethepipeMeasurementofandMOSfieldeffecttransistorsEMOSFET,commonlyusedfordoubledeletiontypestructure,twodeletedverycancontrolthesizeofthecurrentchannel,theGgatenearthesourceofSisnearthedraingategatesignal,GDisthecontrolgate,usuallywithAGCvoltageDeterminetheelectrodeoffieldeffecttransistorThetablewillbeplacedonR*stalls,withredandblackpeninrotationmeasuringtheresistancevaluebetweenthepin,andonlyDbetweenthetworesistancevalueoftenstothousandsofohms,therestofthepinbetweeninfiniteresistanceWhenyoufindDandS,andthenexchangethetwopenmeasuretheresistancebetweentheelectrodes,themeasuredresistanceofameasurementofthelarge,blackprobeconnectedtoDpoleTheredpenisconnectedforSThegateneartheSpoleisthesignalgateG,andthegridclosetotheDpoleisthecontrolgateGestimationofamplificationcapabilityofFETThetableisplacedinR*file,theblackpenisconnectedtodrainD,andtheredpenisconnectedtothesourceSAtthispoint,theresistancevaluebetweenthedrainpointandthesourceindicatedbythepointerispointedoutHandholdingscrewdriverwithinsulatedhandle,withametalrodtotouchthegate,handapplicationgreatlyswing,swingthebigger,morestrongamplificationability,ifthehandswingissmall,whiletheamplificationabilityisveryweakIfthehandsdonotmove,ithaslosttheabilitytozoomTheMOSfieldeffecttransistorcannotpinchthegatebyhandtopreventthegatebreakdownoftheMOStubeInthepowersupplycircuitusingFETmoreandmore,howtoquicklydetermineitsfailure,wetalkaboutEditor'snote:homeappliancemaintenanceForum(WwwJdwxInfo)

用户评价(0)

关闭

新课改视野下建构高中语文教学实验成果报告(32KB)

抱歉,积分不足下载失败,请稍后再试!

提示

试读已结束,如需要继续阅读或者下载,敬请购买!

评分:

/10

VIP

在线
客服

免费
邮箱

爱问共享资料服务号

扫描关注领取更多福利