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Exam (elaborations)

SECTION 609 QUESTIONS AND CORRECT VERIFIED ANSWERS

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SECTION 609 QUESTIONS AND CORRECT VERIFIED ANSWERS

Institution
MACS
Course
MACS

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SECTION 609 QUESTIONS AND
CORRECT VERIFIED ANSWERS
TheA2ageA2ofA2theA2vehicleA2-A2Ans--
WhichA2ofA2theA2followingA2isA2notA2aA2trueA2factorA2inA2howA2muchA2refrigerantA2canA2beA2
recoveredA2fromA2aA2A/CA2system?

ToA2minimizeA2refrigerantA2lossA2-A2Ans--
WhyA2isA2itA2importantA2toA2makeA2sureA2thatA2theA2serviceA2portA2capsA2areA2notA2damag
edA2whenA2reinstallingA2them?

DisposeA2ofA2itA2inA2accordanceA2withA2federal,A2state,A2localA2requirementsA2-A2Ans--
WhatA2mustA2beA2doneA2withA2theA2lubricantA2onceA2itA2isA2removedA2byA2theA2recoveryA2e
quipment?

AnyA2lightA2vehicleA2withA2anA2airA2conditioningA2systemA2designedA2toA2useA2itA2-A2Ans--
WhatA2typesA2ofA2vehiclesA2canA2HFO-1234yfA2beA2usedA2in?

0.15A2ouncesA2perA2yearA2-A2Ans--
SAEA2standardA2J2791A2electronicA2leakA2detectorsA2requiresA2improvedA2standardsA2toA2
haveA2theA2capabilityA2toA2identifyingA2leakageA2ratesA2asA2lowA2as:

FlushingA2solventsA2mayA2remainA2inA2A/CA2systems,A2causingA2problemsA2-A2Ans--
WhichA2ofA2theA2followingA2statementsA2areA2trueA2aboutA2flushingA2A/CA2systems?

RecycleA2theA2HFC-134aA2beforeA2reuseA2usingA2certifiedA2equipmentA2-A2Ans--
BeforeA2itA2canA2beA2reused,A2theA2refrigerantA2mustA2beA2recycledA2throughA2useA2ofA2aA2
mobileA2A/CA2systemA2usingA2recovery-onlyA2equipment.

TheA2refrigerantA2mayA2onlyA2beA2usedA2inA2newA2vehiclesA2withA2componentsA2specificall
yA2designedA2forA2itA2-A2Ans--WhatA2isA2"acceptable"A2classificationA2ofA2HFO-
1234yfA2accordingA2toA2theA2U.S.A2EPA?

Generally,A2veryA2little,A2ifA2anyA2-A2Ans--
HowA2muchA2lubricantA2willA2beA2removedA2whenA2usingA2aA2recovery/
recyclingA2equipmentA2toA2removeA2refrigerantA2fromA2aA2mobileA2A/CA2system?

AccumulatorA2typeA2-A2Ans--
WhatA2typeA2ofA2mobileA2A/
CA2systemA2willA2requireA2moreA2timeA2andA2precautionsA2toA2extractA2allA2theA2refrigerant
?

ApprovedA2byA2someA2vehicleA2manufacturesA2butA2notA2byA2othersA2-A2Ans--
WhatA2areA2theA2recommendationsA2whenA2usingA2ultra-
violetA2(UV)A2orA2fluorescentA2dyesA2inA2anA2HFO-1234yfA2system?
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Uploaded on
June 29, 2026
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2025/2026
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