EPA 608 UNIVERSAL EXAM -

EPA 608 UNIVERSAL EXAM -

ACTUAL EXAM ALL 100 QUESTIONS

AND CORRECT DETAILED ANSWERS

WITH RATIONALES (VERIFIED

ANSWERS) |ALREADY GRADED A+

RefrigerationJtechniciansJwhoJviolateJtheJCleanJAirJActJcan:J-J-JCORRECTJANSWER- LoseJtheirJEPAJcertification,JbeJfined,JbeJrequiredJtoJappearJinJFederalJcourt.AfterJ1995,JanyJsuppliesJofJCFCJrefrigerantsJtoJserviceJexistingJunitsJinJtheJUSAJcanJonlyJcomeJfrom:J -J-JCORRECTJANSWER-recoveryJandJrecycling.

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theJsameJsystemJorJotherJsystemsJownedJbyJtheJsameJpersonJwithoutJrestriction.RefrigerantJcanJnotJbeJcalledJ"reclaimed"JunlessJit:J-J.J-JCORRECTJANSWER- hasJbeenJchemicallyJanalyzedJandJtheJrefrigerantJmeetsJtheJARI-700Jstandard.TheJEPAJcanJrequireJaJtechnicianJtoJdemonstrateJtheirJabilityJtoJperformJproperJproceduresJforJreco veringJand/orJrecyclingJrefrigerant.JFailureJtoJdemonstrateJcompetencyJcanJresultJin:J-J- JCORRECTJANSWER-revocationJofJtheJtechniciansJcertification.WhatJcharacteristic(s)JofJCFCsJmakeJthemJmoreJlikelyJtoJreachJtheJstratosphereJthanJmostJotherJco mpoundsJcontainingJchlorine?J-J-JCORRECTJANSWER- RefrigerantsJthatJcontainJchlorineJbutJnotJhydrogenJareJsoJstableJthatJtheyJdoJnotJbreakJdownJinJth eJlowerJatmosphereJafterJbeingJreleased.JTheJchlorineJorJbromineJreactsJwithJtheJozone,JcausingJitJ toJchangeJbackJtoJoxygen,JthusJdestroyingJtheJozoneJlayer.

AJsystemJisJconsideredJdehydratedJwhen:J-J-JCORRECTJANSWER-

theJvacuumJindicatorJshowsJyouJhaveJreachedJandJheldJtheJrequiredJfinishedJvacuum.DisposableJrefrigerantJcontainersJareJusedJforJ______J-JCORRECTJANSWER-virginJrefrigerant WhichJrefrigerantJisJanJHCFC?J-J-JCORRECTJANSWER-R-123,JR-124,JR-22 WhatJstatementJisJtrueJaboutJanJazeotropicJrefrigerantJmixture?J-J-JCORRECTJANSWER- ItJisJaJmixtureJthatJactsJlikeJaJsingle-componentJrefrigerantJoverJitsJentireJrange. 1 / 2

ChlorofluorocarbosJ(CFCs)JandJhydrochlorofluorocarbonsJ(HCFCs)JhaveJwhichJofJtheJfollowingJinJco mmon?J-J-JCORRECTJANSWER-ItJisJaJmixtureJthatJactsJlikeJaJsingle- componentJrefrigerantJoverJitsJentireJrange.ToJscrapJaJdisposableJcylinder,JtheJinternalJcylinderJpressureJshouldJbeJreducedJtoJatJleast:J-J- JCORRECTJANSWER-0Jpsig.ManifoldJgaugeJsetsJareJoftenJcolorJcoded,JwhenJthisJisJdone,JtheJhighJpressureJgaugeJisJcolorJcode

d:J-JRed.J-JCORRECTJANSWER-

InJgeneral,JblendedJrefrigerantsJshouldJbeJcharged:J-J-JCORRECTJANSWER-asJaJliquid.

BlendedJrefrigerantsJleakJfromJaJsystem:J-J-JCORRECTJANSWER-

inJunevenJamountsJdueJtoJdifferentJvaporJpressures.WhichJofJtheJfollowingJgasesJhelpJformJtheJearth'sJprotectiveJshield?J-JStratosphericJOzoneJ-

JCORRECTJANSWER-

InJaJrefrigerantJsystem,JtheJdeviceJthatJchangesJaJlowJpressureJvaporJtoJaJhighJpressureJvaporJisJthe: J-Jcompressor.J-JCORRECTJANSWER- DataJshowsJthatJchlorineJinJtheJstratosphereJcomesJmainlyJfromJCFCsJratherJthanJfromJnaturalJsour

cesJsuchJasJvolcanoesJbecause:J-

JTheJriseJinJtheJamountJofJchlorineJinJtheJstratosphereJmatchesJtheJriseJinJtheJamountJofJfluorine,Jw hichJhasJdifferentJnaturalJsourcesJthanJchlorine;JTheJriseJinJtheJamountJofJchlorineJinJtheJstratosphe reJmatchesJtheJriseJinJCFCJemissions;JAirJsamplesJtakenJfromJtheJstratosphereJoverJeruptingJvolcan oesJshowJthatJvolcanoesJcontributeJaJsmallJquantityJofJchlorineJtoJtheJstratosphereJwhenJcompare dJtoJCFCs;J-JCORRECTJANSWER- WhichJatomJofJtheJCFCJmoleculeJcausesJozoneJdepletion?J-JchlorineJ-JCORRECTJANSWER- TheJozoneJlayerJprotectsJtheJearthJfrom:J-JultravioletJradiationJfromJtheJsun.J-JCORRECTJANSWER- WhenJusingJwithJanyJsolvent,Jcleaner,JchemicalJorJrefrigerant,JyouJshouldJreview:J- JmaterialJsafetyJdataJsheets.J-JCORRECTJANSWER- AnJawardJofJupJtoJwhatJamountJmayJbeJpaidJtoJaJpersonJsupplyingJinformationJthatJleadsJtoJaJpenal tyJagainstJaJtechnicianJwhoJisJintentionallyJventing?J-J10,000J-JCORRECTJANSWER- TheJMontrealJProtocolJis:J-JaJtreatyJamongJnationsJthatJcontrolsJproductionJofJCFCsJandJHCFCs.J-

JCORRECTJANSWER-

WhichJrefrigerantJisJanJHCFC?J-JR-123,JR-22,JR-124J-JCORRECTJANSWER-

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