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NJ BLUE SEAL REFRIGERATION TEST EXAM QUESTIONS WITH CORRECT ANSWERS.pdf

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NJ BLUE SEAL REFRIGERATION TEST EXAM QUESTIONS WITH CORRECT ANSWERS.pdf

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NJ BLUE SEAL REFRIGERATION TEST EXAM
QUESTIONS WITH CORRECT ANSWERS
OnQaQsingleQactingQreciprocatingQcompressor,QwhatQisQtheQfunctionQofQaQdualQcontrolQdevice?Q-
QCORRECTQANSWERSItQallowsQconstantQspeedQcontrolQandQautomaticQstartQandQstops




IfQaQsystemQwereQusingQanQautomaticQexpansionQvalve,QwhatQwouldQtheQconstantQpressureQbeQm
aintainedQat?Q-QCORRECTQANSWERSTheQevaporator



WhatQisQtheQmainQadvantageQofQaQcascadeQrefrigerationQsystem?Q-
QCORRECTQANSWERSCapableQofQreachingQveryQlowQtemperature




ChooseQtheQstatementQbelow,QwhichQwouldQproveQfalseQaboutQlithiumQbromideQusedQinQabsorpti
onQsystem.Q-QCORRECTQANSWERSItQisQnon-corrosive



WhatQisQaQslingQpsychrometerQdeviceQusedQtoQmeasure?Q-QCORRECTQANSWERSRelativeQhumidity



AQsystemQusingQanQevaporativeQcondenserQoperatesQmostQefficientlyQunderQwhatQconditions?Q-
QCORRECTQANSWERSWhenQtheQwet-bulbQtemperatureQofQairQisQlow




TheQdischargeQgasQfromQtheQcompressorQisQwhat,QinQaQwet-compressionQrefrigerationQsystem?Q-
QCORRECTQANSWERSSaturated




IfQaQrefrigerationQsystemQwereQoverQchargedQwithQrefrigerant,QwhatQconditionsQwouldQoccur?Q-
QCORRECTQANSWERSDecreaseQinQcapacityQandQincreaseQinQheadQpressure




IfQaQcoolingQtowerQcirculatedQ4,300QGPMQofQwater,QwhatQisQtheQcoolingQcapacityQinQtons?Q-
QCORRECTQANSWERS1,433Qtons

,WhatQconditionQwouldQcauseQaQsystemQtoQnotQrespondQtoQanQexpansionQvalveQadjustment?Q-
QCORRECTQANSWERSOilQinQtheQevaporator




InQanQabsorptionQsystem,QtheQgeneratorQreceivesQwhatQmedium?Q-
QCORRECTQANSWERSStrongQliquor




WhichQwouldQhaveQtheQleaseQeffectQonQtheQcapacityQofQaQwater-cooledQcondenser?Q-
QCORRECTQANSWERSTheQambientQairQtemperature




WhatQisQtheQvolumeQoccupiedQbyQaQrefrigerantQunderQspecifiedQconditionsQofQpressureQandQtemp
erature?Q-QCORRECTQANSWERSSpecificQvolume



WhatQshouldQaQcoolingQtowerQwaterQpHQbeQmaintainedQat?Q-QCORRECTQANSWERS8



TheQabsoluteQCelsiusQscaleQisQreferredQtoQbyQwhichQtemperatureQscale?Q-
QCORRECTQANSWERSKelvin




WhichQdevicesQcontrolQtheQhighQsideQfloat?Q-QCORRECTQANSWERSCondenserQandQreceiver



InQFahrenheit,QwhatQisQtheQequivalentQofQ-15QdegreesQCelsius?Q-QCORRECTQANSWERS5QdegreesQF



IfQyouQhadQaQfloodedQevaporator,QwhichQtypeQofQmeteringQdeviceQwouldQyouQuse?Q-
QCORRECTQANSWERSLowQsideQfloat




ChooseQtheQformulaQusedQtoQdetermineQtheQnumberQofQcyclesQofQconcentrationQforQaQcoolingQto
wer?Q-QCORRECTQANSWERSCyclesQ=QTowerQwaterQchloridesQ/QMakeupQwaterQchlorides

, WhatQdeterminesQtheQlowQsideQpressureQinQaQrefrigerationQsystem?Q-
QCORRECTQANSWERSTheQamountQifQloadQonQtheQsystem




WhichQsealQisQnotQusedQonQaQrefrigerationQsystem?Q-QCORRECTQANSWERSMechanical



WhichQwaterQchemistryQtestQisQusedQtoQdetermineQcoolingQtowerQcyclesQofQconcentration?Q-
QCORRECTQANSWERSChlorides




WhyQisQaQrheostatQusedQonQaQsynchronousQmotor?Q-
QCORRECTQANSWERSToQvaryQtheQpowerQfactorQtoQtheQloadQconditions




WhatQwouldQhappenQifQyouQhadQaQsuddenQdropQinQtheQtemperatureQinQtheQcoolingQtowerQofQaQlit
hiumQbromideQabsorptionQsystem?Q-QCORRECTQANSWERSCrystallizationQinQtheQsystem



WhatQisQtheQfunctionQofQaQheatQexchangerQinQanQabsorptionQsystem?Q-
QCORRECTQANSWERSAllowsQtheQweakQliquorQtoQheatQtheQstrongQliquor




DefineQtheQtermQ"refrigerantQreclaiming"Q-
QCORRECTQANSWERSSellingQreprocessedQrefrigerantQasQ"reclaimedQrefrigerant"Q;QReprocessingQt


heQrefrigerantQintoQaQnewQproductQthatQcanQbeQreusedQ;QChemicallyQanalyzingQandQdistillingQtheQr
efrigerantQ;QAllQofQtheQabove



WhichQphraseQbestQdescribesQtheQtermQ"freeQair"?Q-
QCORRECTQANSWERSAirQatQatmosphericQconditions




HowQisQtheQsettingQonQaQthermostaticQexpansionQvalveQrated?Q-
QCORRECTQANSWERSDegreesQofQsuperheat

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