ASE 609 QUESTIONS AND CORRECT VERIFIED ANSWERS

ASE 609 QUESTIONS AND CORRECT
VERIFIED ANSWERS
TheA2recoveryA2processA2onA2anA2R-12A2orA2
R-
134A2A/
CA2systemA2shouldA2continueA2untilA2aA2stableA2vacuumA2isA2heldA2byA2theA2systemA2for:
(A)A21A2minute
(B)A22A2minutesA2
(C)A24A2minutesA2
(D)A25A2minutesA2-A2Ans--(B)A22A2minutes

AA2recycledA2refrigerantA2containerA2hasA2beenA2checkedA2andA2foundA2toA2beA2aboveA2th
eA2givenA2pressureA2limitA2forA2theA2ambientA2temperature.

TechnicianA2AA2saysA2thatA2theA2refrigerantA2containerA2shouldA2beA2placedA2inA2aA2cooler
A2storageA2areaA2beforeA2use.


TechnicianA2BA2saysA2thatA2theA2vaporA2inA2theA2containerA2shouldA2beA2slowlyA2ventedA2i
ntoA2aA2refrigerantA2handlingA2unit.

WhoA2isA2right?A2
(A)A2AA2onlyA2
(B)A2BA2onlyA2
(C)A2BothA2AA2andA2BA2
(D)A2NeitherA2AA2norA2BA2-A2Ans--(B)A2BA2onlyA2
whyA2isA2AA2wrong?

TheA2ozoneA2layerA2filtersA2outA2mostA2ofA2theA2sun'sA2harmful:
(A)A2InfraredA2radiation.
(B)A2UltravioletA2radiation.
(C)A2GammaA2radiation.
A2(D)A2AlphaA2radiation.A2-A2Ans--(B)A2UltravioletA2radiation.


TheA2reductionA2ofA2ozoneA2inA2theA2stratosphereA2couldA2cause:
(A)A2anA2increaseA2inA2skinA2cancerA2andA2eyeA2cataracts
(B)A2anA2increaseA2inA2plantA2lifeA2growth.A2
(C)A2anA2increaseA2inA2theA2earth'sA2polarA2ice.
D)A2anA2increaseA2inA2marineA2lifeA2growth.A2-A2Ans--
(A)A2anA2increaseA2inA2skinA2cancerA2andA2eyeA2cataracts

TechnicianA2AA2saysA2thatA2sunlightA2strikingA2CFCA2moleculesA2canA2causeA2chlorineA2to
A2beA2released.

, TechnicianA2BA2saysA2thatA2chlorineA2atomsA2reactA2withA2ozoneA2toA2produceA2chlorineA2
monoxide.

WhoA2isA2right?
A2(A)A2AA2only
A2(B)A2BA2only
A2(C)A2BothA2AA2andA2B
A2(D)A2NeitherA2AA2norA2BA2-A2Ans--(C)A2BothA2AA2andA2B


R-134aA2refrigerantA2mustA2beA2recycledA2toA2meetA2whichA2ofA2theseA2purityA2standards?
(A)A2J2788
(B)A2DOT-4BA
(C)A2J1991
(D)A2J2099A2-A2Ans--(D)A2J2099

IfA2theA2requiredA2chargeA2levelA2ofA2refrigerantA2forA2anA2MVACA2systemA2isA240A2ounces
,A2whichA2ofA2theseA2isA2theA2correctA2chargeA2levelA2measuredA2inA2pounds?

(A)A21.75A2lbA2(794A2g)
(B)A22.50A2lbA2(1.13A2kg)
(C)A23.75A2lbA2(1.70A2kg)
(D)A24.50A2lbA2(2.04A2kg)A2-A2Ans--(B)A22.50A2lbA2(1.13A2kg)

HowA2manyA2ouncesA2areA2inA2aA2pound?A2-A2Ans--16A2oz

TechnicianA2AA2saysA2thatA2recovery/recycling/rechargingA2equipmentA2forA2R-
1234yfA2refrigerantA2requiresA2integrationA2withA2aA2refrigerantA2identifier.

TechnicianA2BA2saysA2thatA2recovery/recycling/rechargingA2equipmentA2forA2R-
1234yfA2refrigerantA2usesA2aA217mmA2O.D.A2quickA2couplerA2onA2theA2low-
sideA2serviceA2hose.

WhoA2isA2right?A2
A2(A)A2AA2only
A2(B)A2BA2only
A2(C)A2BothA2AA2andA2B
A2(D)A2NeitherA2AA2norA2BA2-A2Ans--(A)A2AA2only
whyA2isA2BA2wrong?

WhichA2ofA2theseA2identifiesA2aA2cylinderA2ofA2R-1234yfA2refrigerant?
(A)A2White
(B)A2Gray
(C)A2LightA2blue
(D)A2WhiteA2withA2redA2bandA2-A2Ans--(D)A2WhiteA2withA2redA2band