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SECOND CLASS REFRIGERATION AND AIR-CONDITIONING PRACTICE EXAM QUESTIONS AND ANSWERS.pdf

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SECOND CLASS REFRIGERATION AND AIR-CONDITIONING PRACTICE EXAM QUESTIONS AND ANSWERS.pdf

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DC MASTER AIR CONDITIONING AND REFRIGERATION
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Institution
DC MASTER AIR CONDITIONING AND REFRIGERATION
Course
DC MASTER AIR CONDITIONING AND REFRIGERATION

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Uploaded on
January 17, 2026
Number of pages
5
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers

Subjects

  • second class refrigeration and air conditioning pr

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SECOND CLASS REFRIGERATION
AND AIR-CONDITIONING PRACTICE
EXAM QUESTIONS AND ANSWERS
HowRhotRsomethingRfeelsR-RCORRECTRANSWERS-SensibleRheatRdescribes?



TheRheatRpotentialRofRaRsubstanceR-RCORRECTRANSWERS-LatentRHeatonRmeasures?



TheRrefrigerantRabsorbsRtheRLatentRheatR-RCORRECTRANSWERS-
InRanRairRconditionRandRrefrigerantRsystemRwhatRoccursRinRtheRevaporatorRcoil?



TheRrefrigerantRreleases,RtheRLATENTRheatR-RCORRECTRANSWERS-
InRanRairRconditionRandRrefrigerationRsystemRwhatRoccursRinRtheRcondenserRcoil?RTheRcondenserRc
oil



Reciprocating,Rscrew,Rcentrifugal,RrotaryR-RCORRECTRANSWERS-NameRfourRtypesRofRcompressors



LateralR-RCORRECTRANSWERS-
WhichRofRtheRfollowingRisRnotRaRtypeRofRcompressorRreciprocating,Rcentrifugal,Rrotary,Rscrew,Rlater
al?



212°FR-RCORRECTRANSWERS-boilingRpointRofRwaterRinRFahrenheit



poundsRperRsquareRinchR(psi)R-RCORRECTRANSWERS-PressureRisRusuallyRmeasuredRin?



FollowReachRotherRupRandRdownR-RCORRECTRANSWERS-
InRaRsealedRsystem,RpressureRandRtemperature_____?

, TrueR-RCORRECTRANSWERS-TrueRorRfalse?RAtmosphericRpressureRatRseaRlevelRisR14.7RPSIA.



ReducingR-RCORRECTRANSWERS-
VaporizationRcanRbeRincreasedRby______RTheRpressureRonRaRliquid.



IncreasesR,RincreasesR-RCORRECTRANSWERS-
DuringRcompressionRthe_____R(dueRtoRboyle'sRlaw),RandRatRtheRsameRtimeRtheRtemperature_____
_(dueRtoRCharlesRlaw)



PolyurethaneRfoamR-RCORRECTRANSWERS-
TheRmostRcommonRinsulationRmaterialRuseRinRhouseholdRrefrigerators,RandRfreezersRisRwhat?



ThermostaticRexpansionRvalveR-RCORRECTRANSWERS-
ARlowRpressureRswitchRthatRcanRbeRusedRtoRcycleRaRrefrigeratingRsystemRisRcalledRaRwhat?



B;R2LR-RCORRECTRANSWERS-WhatRisRtheRtoxicityRlevelRinRflammabilityRclassificationRofRammonia?



DischargeRorRheadRpressureR-RCORRECTRANSWERS-
PressureRonRtheRhighRscaleRofRaRmechanicalRrefrigerationRunitRisRcalled?



ToxicityRB;RflammabilityR2LR-RCORRECTRANSWERS-WhatRisRtheRclassificationRofRRR-R717?



DischargeR-RCORRECTRANSWERS-WhichRoneRofRtheseRlinesRisRnotRinsulatedR-
RSuction,Rdischarge,Rliquid?




13,000RBTUR-RCORRECTRANSWERS-
HowRmanyRBTUsRwouldRitRtakeRtoRraiseRtheRtemperatureRofR1560RgallonsRofRwaterR1°F?
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