IICRC EXAM Questions and Answers 2025

IICRC EXAM Questions and Answers 2025
WhatAisAoneAofAyourAprimaryAresponsibilitiesAduringAtheAinitialAinspectionA-
ACORRECTAANSWERSA-IdentifyAandAaddressAsafteyAhazzards

AfterAde-energizingAcircuits,AwhatAisAtheAnextAstepAtoAcreateAtheAsafestAworkingA
environmentA-ACORRECTAANSWERSA-UtilizeAlockout/tagAoutAprocedures
WhenAaAcontaminatedAwaterAlossAinvolvesAhighA-riskAindividualsA,AyouAshouldA-
ACORRECTAANSWERSA-ConsiderAanAIEPAtoAassessAcontamination

WhatAdoesAIEPAstandAfor?A-ACORRECTAANSWERSA-IndoorAEnvironmentalAProfessional
AAcatA1AwaterAlossAisA-ACORRECTAANSWERSA-Sanitary
AAcatA2AwaterAlossAisA-ACORRECTAANSWERSA-SignificantlyAcontaminated
AAcatA3AwaterAlossAisA-ACORRECTAANSWERSA-GrosslyAcontaminated
ToAwearAaArespirator,AindividualsAmustA-ACORRECTAANSWERSA-
BeAmedicallyAevaluated,AfitAtestedAandAtrained
IfAmoldAisAdiscoveredA,AyouAshouldAinitiallyA-ACORRECTAANSWERSA-
UseAPPEAandAcontainment
DisposeAofAwasteAwaterAinAaccordanceAwith________A-ACORRECTAANSWERSA-
LocalAandAstateAlaws
TheAtwoAmostAcommonAhazardousAmaterialsAthatAmayAbeAfoundAduringAaAwaterAlossAisAlea
d-basedApaintAand_____A-ACORRECTAANSWERSA-Asbestos
______AisAtheAtempAstuffAagainAwhichAwaterAvaporAbeginsAtoAturnAtoAaAliquidA-
ACORRECTAANSWERSA-DewApoint

WhatAisAtheAhumidityAratioAifAtheAairAtemperatureAisA60FAandAtheArelativeAhumidityAisA65%?A
-ACORRECTAANSWERSA-50AgrainsAperApound
RelativeAhumidityAisAtheApercentAofAmoistureAinAtheAairAatAaAgiven_________A-
ACORRECTAANSWERSA-Temperature

HumidityAratioAisAaAbetterAmeasureAthanArelativeAhumidityAbecauseAitAgivesAtheA________
_AweightAofAwaterAperApinsAofAdryAairA-ACORRECTAANSWERSA-Actual
NatureAalwaysAseeksAaA_____A-ACORRECTAANSWERSA-equilibrium
WithAeverythingAbeingAequal,AtheAtemperatureAthatAwillAgiveAyouAtheAhighestArateAofAevapo
rationAis?A-ACORRECTAANSWERSA-85AF
TheAfastestArateAofAevaporationAoccursAunderAwhichAconsistAion?A-
ACORRECTAANSWERSA-85AFAandA45%

InAtheAUSAhumidityAisAmeasuredAinA-ACORRECTAANSWERSA-GrainsAperApound
OtherAfactorsAremainingAequal,AincreasingAtheAairAtemperatureAwillAlowerArelativeAhumidity
ATAorAFA-ACORRECTAANSWERSA-True

MaterialsAwhichAareAhighlyAproneAtoAsecondaryAdamageAcausedAbyAhighAhumidityAareAcall
edA?A-ACORRECTAANSWERSA-Hygroscopic
TheAmostAenergyAefficientAdehumidifierAisAaA?A-ACORRECTAANSWERSA-Refrigerant
RefrigerantAdehumidifiersAareAmostAeffectiveAbetween?A-ACORRECTAANSWERSA-70AF-
A90AFAandAaboveA40%ARh

IndoorAconditionsAwhereAaAconventionalArefrigerantAwouldAworkAbest?A-
ACORRECTAANSWERSA-84AFAandA75%

, AAsanitizerAisAaAproductAdesignedAto?A-ACORRECTAANSWERSA-
ReturnAtheAsurfaceAtoAsafeAlevels
ToAquickestAwayAtoAdetermineAtheAperimeterAofAwetAcarpetAandApadAis?A-
ACORRECTAANSWERSA-UseAaAmoistureAmeter

AAbioCIDEAisAaAchemicalAagentAthatAdestroysAorAkillsAlivingAorganismsATAorAFA-
ACORRECTAANSWERSA-True

TheAdeviceAusedAtoAmeasureAtheAtemperatureAandAhumidityAofAtheAairAisAcalledA-
ACORRECTAANSWERSA-AAthermo-hygrometer

WhichAdehumidifierAwouldAyouAuseAinAtheAfollowingAconditionsA:A40AFAandA40%A-
ACORRECTAANSWERSA-Desiccant

ForAsaftey,AdrywallAceilingsAthatAareASaturatedAweAandAsaggingAshouldAbeA_____,______,
&______A-ACORRECTAANSWERSA-DrainedA,AremovedAASAP,A&AproperlyAdisposed
OneAofAtheAmostAimportantAresponsibilitiesAduringAtheAinitialAinspectionAisAtoAconductAaA-
ACORRECTAANSWERSA-HazardAassessment

IEPAstandsAfor?A-ACORRECTAANSWERSA-IndoorAenvironmentalAprofessional
CategoryA1AwaterAisA-ACORRECTAANSWERSA-Sanitary
WaterAthatAcontainsAsignificantAcontaminationAandAhasAtheApotentialAtoAcauseAdiscomfortA
orAsicknessAisAaAcategoryA___AwaterAlossA-ACORRECTAANSWERSA-2
BeforeAwearingAaArespirator,AemployeesAshouldAbeAmedicallyAcleared,A______,AandAprop
erlyAtrainedA-ACORRECTAANSWERSA-Fit-tested
TwoAcommonsAhazardousAmaterialsAfoundAonAwaterAprojectsAareA______AandA_____?A-
ACORRECTAANSWERSA-LeadApaintAandAasbestos

HygroscopicAmaterialsAabsorbAwaterAvaporAuntilAtheyAreachA_______AwithAtheAatmospheri
cAconditionsA-ACORRECTAANSWERSA-Equilibrium
AirAwithAtheAlowestAhumidityArationAalsoAhasAtheAlowestA-ACORRECTAANSWERSA-
VaporApressure
SecondaryAdamagesAareAmoreAlikelyAtoAoccurAinA______AmaterialsA-
ACORRECTAANSWERSA-Hygroscopic

WhenAtheAtemperatureAofAtheAairAincreases,AtheArelativeAhumidityAofAtheAairA_____A-
ACORRECTAANSWERSA-Decreases

TheAratioAofAmoistureAinAtheAairAexpressedAasAaApercentageAofAhowAmuchAmoistureAtheAair
AcouldApotentiallyAholdAisAcalledA?A-ACORRECTAANSWERSA-RelativeAhumidity

_______AisAtheAscientificAprocessAofAchangingAwaterAfromAaAliquidAtoAaAvaporA-
ACORRECTAANSWERSA-Evaporation

ChangingAwaterAfromAaAsolidAstageAtoAaAvaporAstateAwithoutAgoingAthroughAtheAliquidAstate
AisAcalled?A-ACORRECTAANSWERSA-Sublimation

EvaporationAofAwaterA_____AtheAtemperatureAofAtheAsurfaceAit'sAevaporatingAformA-
ACORRECTAANSWERSA-Lowers

TheAamountAofAwaterAvaporAinAtheAairAmeasuredAinAtheAweightAofAtheAmoistureAisAcalledA?A-
ACORRECTAANSWERSA-HumidityAratio

AsAtheAamountAofAwaterAvaporAinAtheAairAisAincreased,AtheAforceApushingAagainstAsurfacesA
isAcalledA________AandAisAalsoAincreasedA-ACORRECTAANSWERSA-VaporApressure
TheAtemperatureAthatAwillAcauseAwaterAvaporAtoAcondenseAonAsurfacesAisAcalledAtheA____
___AtemperatureA-ACORRECTAANSWERSA-DewApoint