AC EMPLOYMENT READY CERTIFICATION EXAM QUESTIONS WITH CORRECT RESPONSE.

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AC EMPLOYMENT READY CERTIFICATION EXAM QUESTIONS WITH CORRECT RESPONSE.

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11 pages

2025/2026

Institution DC MASTER AIR CONDITIONING AND REFRIGERATION

Course DC MASTER AIR CONDITIONING AND REFRIGERATION

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AC EMPLOYMENT READY CERTIFICATION EXAM QUESTIONS WITH CORRECT RESPONSE.

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A/C EMPLOYMENT READY
CERTIFICATION EXAM QUESTIONS
WITH CORRECT RESPONSE
HeatYwhichYcausesYaYchangeYinYtemperatureYofYaYsubstanceYisYcalledY-YCORRECTYANSWERS-
sensibleYheat

HeatYwhichYcausesYaYchangeYinYstateYofYaYmaterialYwithoutYaYchangeYinYtemperatureYisYcalledY-
YCORRECTYANSWERS-latentYheat

HeatYwhichYisYaddedYtoYaYvaporYafterYtheYchangeYofYstateYoccursYisYcalled;Y-YCORRECTYANSWERS-
Superheat

HeYcanYtravelYbyY-YCORRECTYANSWERS-Conduction,Yconvection,andYradiation

TheYmovementYofYheatYbyYwayYofYfluidY(orYair)YisYcalled;Y-YCORRECTYANSWERS-convection

TheYmovementYofYheatYbyYdirectYcontactYisYcalledY-YCORRECTYANSWERS-conduction

TheYstandardYunitYforYmeasuringYtheYquantityYofYheatYinYaYsubstanceYisY-YCORRECTYANSWERS-
BritishYThermalYUnitY(BTU)

AYrefrigerantYgivesYupYheatYwhen;Y-YCORRECTYANSWERS-ItYcondenses

ItYisYdesirableYforYrefrigerantYinYtheYsuctionYlineYtoYbeYslightlyYsuperheatedYinYorderYtoY-
YCORRECTYANSWERS-InsureYliquidYrefrigerantYdoesYnotYenterYtheYcompressor

, TheYstateYofYtheYrefrigerantYinYtheYsuctionYlineYshouldYbeY-YCORRECTYANSWERS-
LowYpressure,YlowYtemperatureYvapor

TheYstateYofYtheYrefrigerantYenteringYtheYcondenserYisY-YCORRECTYANSWERS-
highYpressure/YhighlyYsuperheatedYvapor

TheYevaporatorY-YCORRECTYANSWERS-
TransfersYheatYfromYtheYrefrigeratedYspaceYtoYtheYrefrigerant

WhichYofYtheYfollowingYisYNOTYaYthermodynamicYpropertyYofYrefrigerants?Y-YCORRECTYANSWERS-
CriticalYpoint

TheYsequentialYorderYofYstepsYinYtheYvaporY-YcompressionYprocessYareY-YCORRECTYANSWERS-
Compression,Ycondensation,expansion,Yvaporization

IfYaY30YpoundYcylinderYofYreclaimed,YR-
410,YaYrefrigerantYhasYbeenYstoredYovernightYatYaY70°FYtheYpressureYinYtheYcylinderYshouldYbeYappr
oximatelyY-YCORRECTYANSWERS-201Ypsig

FanYairflowYpressuresYareYusuallyYmeasuredYinY-YCORRECTYANSWERS-InchesYofYwaterYcolumnY(WC)

ZeroYpsiaY(poundsYperYsquareYinchYabsolute)Yis;Y-YCORRECTYANSWERS-
ApproximatelyY14.7Ypsig.YAtYseaYlevel

ZeroYpsigY(poundsYperYsquareYinchYgauge)YisY-YCORRECTYANSWERS-sameYasYatmosphericYpressure

TheYtemperatureYatYwhichYmoistureYwillYstartYtoYcondenseYfromYtheYairYisYcalledY-
YCORRECTYANSWERS-dewYpointYtemperature

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Uploaded on: January 17, 2026
Number of pages: 11
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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