BLUE SEAL MIDTERM EXAM QUESTIONS WITH CORRECT ANSWERS GRADED A.pdf

BLUE SEAL MIDTERM EXAM
QUESTIONS WITH CORRECT
ANSWERS GRADED A+ FOR 2025-
2026 ASSURED EXCEL!!
"Ifvavlowvsidevfloatvisvusedvasvavmeteringvdevicevinvavfloodedvsystemvandvthevfloatvfillsvwithvrefrigerantvandv
sinks,vwhichvofvthevfollowingvconditionsvwouldvmostvlikelyvoccur?"v-
vvCORRECTvANSWERSItvwouldvfloodvthevevaporator




Thermostaticvexpansionvvalvesvarevratedvinvwhatvunitsvofvmeasurements?v-
vvCORRECTvANSWERSTonsvofvrefrigeration




Thevfirstvlawvofvthermodynamicsvstates?v-vvCORRECTvANSWERSEnergyvisvneithervcreatedvnorvdestroyed



Whatvisvthevcorrectvpitchvonvavrefrigerationvsuctionvlinev10vfootvlong?v-vvCORRECTvANSWERS1/4vinch



Avthermostaticvexpansionvvalvevinvavrefrigerationvsystemv-
vvCORRECTvANSWERSmodulatesvandvcontrolsvthevflowvofvrefrigerantvtovthevevaporator




Whatvcompressorvusesvavdampervtovcontrolvcapacity?v-vvCORRECTvANSWERSCentrifugal



Howvdovthevvalvesvonvavcompressorvoperate?v-vvCORRECTvANSWERSbyvpressure



Whatvconditionvwouldvcausevavsystemvnotvtovrespondvtovanvexpansionvvalvevadjustment?v-
vvCORRECTvANSWERSOilvinvthevevaporator




Thevstaticvsettingvofvavthermostaticvexpansionvvalvevisvratedvin:v-
vvCORRECTvANSWERSdegreesvofvsuperheat

, Whatvfunctionvdoesvthevevaporatorvperformvinvavrefrigerationvsystem?v-
vvCORRECTvANSWERSNonevofvthevabove




Whatvwouldvindicatevthatvyourvexpansionvvalvevisvleaking?v-
vvCORRECTvANSWERSoilvwouldvbevdrippingvfromvthevtubing




Howvmanyvbtuvsvmustvbevremovedvtovcoolvdownv1vpoundvofvwatervatv75vdegreesvandvfreezevitvatv32vdegF?v
-vvCORRECTvANSWERS187vbtuvs



"Givevthevspecificvheatvforveachvofvthevfollowing:vwater,vice,vsteam."v-
vvCORRECTvANSWERSwaterv1;vicev.5;vsteamv.5




"Ifvavreciprocatingvcompressorvwerevrunvwithvthevsuctionvvalvevclosedvandvthevdischargevvalvevopen,vwhat
vwouldvoccur?"v-vvCORRECTvANSWERSNon-condensiblesvwouldventervthevcompressor




Whatvwouldvfrostvonvthevsuctionvlinevofvavsystemvusingvavhighvsidevfloatvindicate?v-
vvCORRECTvANSWERSoverchargedvsystem




Allvlicensesvforvoperatorsvshallvbevframedvandvpostedvinvthevplantvofficevorvthevengineervsvoffice.vFailurevtov
complyvshallvresultvinvavfinevof?v-vvCORRECTvANSWERS$500.00



Whatvtypevofvcontrolvisvusedvforvloadingvandvunloadingvavcompressorvautomatically?v-
vvCORRECTvANSWERSPressurevswitch




Wetvbulbvreadingsvarevhighervthanvthevdryvbulbvreadingvwhenv-
vvCORRECTvANSWERSThisvcanvnevervhappen




Convertv89vCelsiusvtovFahrenheit.v-vvCORRECTvANSWERS192vdegreesvF



Thevprocessvofvavsolidvchangingvtovavgasvwithoutvgoingvthroughvthevliquidvphasevisvknownvas?v-
vvCORRECTvANSWERSSublimation