EPA 609 PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS

EPA 609 PRACTICE QUESTIONS AND
CORRECT VERIFIED ANSWERS
R-134aA2isA2aA2chlorine-freeA2refrigerantA2-A2Ans--True

OzoneA2layerA2absorbsA2andA2scattersA2________A2fromA2theA2sunA2-A2Ans--
ultravioletA2light

ForA2determiningA2theA2OzoneA2DepletionA2PotentialA2________A2havingA2beenA2assigne
dA2aA2factorA2ofA21A2-A2Ans--CFC-11

AA2refillableA2refrigerantA2cylinderA2mustA2notA2beA2filledA2aboveA2______A2ofA2itsA2fullA2ca
pacity.A2-A2Ans--80%

OzoneA2atA2groundA2levelA2andA2atA2StratosphereA2isA2aA2harmfulA2pollutantA2-A2Ans--
False

EachA2chlorineA2ionA2canA2ableA2toA2destroyA2______A2ozoneA2moleculesA2-A2Ans--
100,000

LifetimeA2ofA2CFCsA2isA2believedA2toA2rangeA2fromA2_____A2yearsA2-A2Ans--20-100

AnA2awardA2ofA2upA2toA2______A2mayA2beA2paidA2toA2aA2personA2supplyingA2informationA2t
hatA2leadsA2toA2aA2penaltyA2againstA2aA2technicianA2whoA2isA2intentionallyA2venting.A2-
A2Ans--$10,000


Ester-basedA2syntheticA2oilsA2canA2beA2mixedA2withA2otherA2oilsA2-A2Ans--False

SinceA2_____,A2itA2isA2illegalA2toA2ventA2substitutesA2forA2CFCA2andA2HCFCA2refrigerantsA2
-A2Ans--NovA215,A21995

MVACA2systemsA2beingA2disposedA2mustA2beA2evacuatedA2toA2_____A2ofA2mercuryA2befo
reA2beingA2scrappedA2-A2Ans--4A2inches

SinceA2________,A2itA2isA2noA2longerA2legalA2forA2CFCsA2toA2beA2manufacturedA2orA2impor
tedA2intoA2theA2UnitedA2StatesA2-A2Ans--JanA21,A21996

TheA2CleanA2AirA2ActA2(CAA)A2ofA2______A2directsA2EPAA2toA2establishA2requirementsA2to
A2preventA2theA2releaseA2ofA2ozoneA2depletingA2substances.A2-A2Ans--1990


AtA2highA2temperatures,A2CFC-12A2canA2decomposeA2toA2formA2_______A2-A2Ans--
hydrochloricA2andA2hydrofluoricA2acid

OzoneA2moleculeA2consistsA2ofA2______A2atomsA2ofA2oxygenA2-A2Ans--three

, CFCsA2areA2highlyA2reactiveA2inA2_____A2ofA2atmosphereA2-A2Ans--lower

Non-
condensablesA2inA2aA2refrigerationA2systemA2resultA2inA2aA2_______A2dischargeA2pressur
eA2-A2Ans--higher

MoistureA2levelA2inA2RecycledA2R-12A2(CFC-
12)A2thatA2hasA2beenA2directlyA2removedA2from,A2andA2intendedA2toA2beA2returnedA2to,A2aA
2mobileA2air-conditioningA2systemA2cannotA2exceedA2_______A2PPMA2byA2weight.A2-
A2Ans--15


OverA2theA2roadA2refrigerationA2unitsA2andA2R-
22A2(HCFC)A2airA2conditioning,A2suchA2asA2thatA2foundA2inA2buses,A2alsoA2requiresA2Secti
onA2______A2certificationA2-A2Ans--608

OzoneA2depletionA2increasesA2globalA2warmingA2-A2Ans--True

RefrigerantsA2areA2lighterA2thanA2theA2air:A2-A2Ans--False

StratosphereA2layerA2consistsA2ofA2aboutA2_____A2ofA2theA2availableA2Ozone:A2-A2Ans--
90%

EveryA2refrigerantA2cylinderA2needA2notA2beA2protectedA2byA2someA2typeA2ofA2pressureA2r
eliefA2device:A2-A2Ans--False

IfA2aA2technicianA2isA2alreadyA2trainedA2andA2certifiedA2toA2handleA2CFC-
12,A2heA2hasA2toA2beA2re-certifiedA2toA2handleA2HFC-134aA2-A2Ans--False

WhichA2ofA2theA2followingA2refrigerantsA2hasA2highA2ozone-depletionA2potential:A2-A2Ans--
CFCs

R-
152aA2isA2aA2chemicalA2compoundA2composedA2ofA2whichA2ofA2theA2following:A2(MultipleA2
AnswerA2Question)A2-A2Ans--Carbon,A2Hydrogen,A2Fluorine

R-134aA2refrigerantA2doesA2poseA2aA2cancerA2orA2birthA2defectsA2hazardA2-A2Ans--False

ExternalA2RecoveryA2TanksA2mustA2beA2evacuatedA2toA2______A2ofA2mercuryA2beforeA2be
ingA2putA2intoA2serviceA2-A2Ans--27A2inches

DisposableA2RefrigerantA2Tanks,A2underA2_______A2mustA2beA2evacuatedA2beforeA2being
A2scrappedA2-A2Ans--20A2pounds


HFC-
134a,A2isA2theA2refrigerantA2thatA2replacedA2_______A2inA2automotiveA2airA2conditioningA2
systemsA2-A2Ans--R-12