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IICRC - APPLIED STRUCTURAL DRYING EXAM QUESTIONS WITH CORRECT ANSWERS 2025
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IICRC - APPLIED STRUCTURAL DRYING EXAM QUESTIONS WITH CORRECT ANSWERS 2025
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EXAM QUESTIONS WITH CORRECTAirKFiltrationKDeviceK(ADF)K-KcorrectKanswer-
CommonlyKcalledKanKairKscrubberKorKnegativeKairKmachineKifKairborneKparticlesKneedKtoKbeKreduced,KyouKc
ouldKuseKanKappropriatelyKinstalledK_______K________K________
AirKFiltrationKDeviceK-KcorrectKanswer-AFD
AssemblyKConstructionK-KcorrectKanswer-
PriorKtoKdeterminingKtheKbestKdryingKsystemKforKaffectedKmaterials,KrestorersKshouldKidentifyKandKunderst
andKtheKassemblyKconstructionK(ieKwallKassembly,KfloorKassembly)
CategoryK1K-KcorrectKanswer-
waterKoriginatesKfromKaKsanitaryKsourceKandKdoesKnotKposeKsubstantialKriskKforKdermal,Kingestion,Kinhalati
on,KorKexposure.KUncontaminatedKandKroutinelyKcleaned
CategoryK2K-KcorrectKanswer-
waterKcontainsKsignificantKcontaminationKandKhasKtheKpotentialKtoKcauseKdiscomfortKorKsicknessKifKcontact
edKorKconsumedKbyKhumans
CategoryK3K-KcorrectKanswer-
waterKisKgrosslyKcontaminatedKandKcanKcontainKpathogenic,Ktoxigenic,KorKotherKharmfulKagents
SewageKBackKUpK-KcorrectKanswer-CategoryK3
CleanKwaterKsupplyKlineK-KcorrectKanswer-CategoryK1
ClassK1K-KcorrectKanswer-LeastKamountKofKwaterKabsorptionKandKevaporationKloadK-
KWetKporousKmaterialsK-KwaterKlossKisKlessKthenK5%KofKtheKarea
,ClassK2K-KcorrectKanswer-SignificantKamountKofKwaterKabsorptionKandKevaporationKloadK-
KwaterKintrusionKwhereKwetKrepresentsK5%K-K40%KofKtheKarea.
ClassK3K-KcorrectKanswer-
greatestKamountKofKwaterKabsorptionKandKevaporationKload.KWaterKintrusionKwhereKwetKrepresentsKoverK
40%KofKtheKarea
ClassK4K-KcorrectKanswer-
deeplyKheldKorKboundKwater.KSignificantKamountKofKwaterKabsorptionKintoKlowKevaporationKmaterials.KDryi
ngKmayKrequireKspecialKdryingKmethods,KlongerKdryingKtime,KorKsubstantialKwaterKvaporKpressureKdifferenti
als.
ClosedKdryingKsystemK-KcorrectKanswer-
UsesKmechanicalKdehumidificationKandKisKnotKopenKtoKoutsideKair.KUsedKifKthereKareKsecurityKissues,KtheKou
tsideKairKisKnotKconductiveKtoKdryingKorKwhenKaccessKtoKoutsideKairKisKnotKpossible.
ConventualKrefrigerantKdehumidifierK-KcorrectKanswer-
RemovesKwaterKvaporKfromKtheKairKbyKloweringKtheKtemperatureKofKtheKincomingKairKtoKbelowKdewKpointK
andKcausingKtheKwaterKtoKcondenseKonKtheKcoils.KColdKandKhotKsurfacesKcreatedKwithKgasesKinsideKaKclosed
KcoilKsystem.
CombinationKDryingKSystemK-KcorrectKanswer-
usesKsomeKoutdoorKairKwithKdehumidifiersKtoKaccelerateKtheKdryingKprocess.KThisKcanKincludeKperiodicallyK
ventingK(flushing)KtheKstructure,KusingKnegativeKpressureKorKusingKsmallKopeningsKtoKtheKoutside
DesiccantKdehumidifierK-KcorrectKanswer-
RemovesKwaterKvaporKfromKtheKairKthroughKabsorption.KUsuallyKrequiresKmoreKamperageKasKcomparedKtoK
refrigerantKdehumidifier.KDesiccantsKcreateKtheKlowestKvaporKpressureKwhichKworkKbestKonKlowKporosityKm
aterials.KWhenKaKdesiccantKdehuKisKdrawingKoutsideKairKandKductingKprocessedKairKinsideKaKbuildingKitKcanKc
reateKpositiveKpressureKinKtheKbuilding.KToKimproveKdesiccantKdehuKperformance,KitKmayKbeKbeneficialKtoKp
re-coolKtheKdesiccantsKairKintake
InfiltrationK-KcorrectKanswer-
HighKhumidityKoutsideKairKcouldKaffectKtheKdryingKclimateKadverselyKdueKtoK______________
, 1.KTightnessKofKtheKbuildingKenvelope
2.KPrevailingKweather
3.KHVAC
4.KClassKofKWater
5.KBuildingKConstruction
5.KBuildKoutKdensityK-KcorrectKanswer-FavorsKthatKaffectKtheKdetailedKdehumidifierKcalculationKis:
DetailedKDehumidificationKCalculationK-KcorrectKanswer-SeeKChart:K
CubicKFeetK:KDividedKbyK70K=KBaseKPintsKperKday
MultiplyKtheK5KmultipliersKtogether:KBuildKoutKdensityKxKbuildingKconstructionKxKclassKofKwaterKxKHVACKxKW
eatherKImpactK=KMultiplier
MultiplyKBaseKPintsKperKdayKxKMultiplierK=KAdjustedKPintsKPerKDay
DryKStandardsK-KcorrectKanswer-
TheKunaffectedKmaterialKreadingsKareKcalledK______K______.KYouKknowKyouKcanKuseKthisKasKyourKdryingKgo
al.KYourKdryingKgoalKisKthisKplusK10%KofKit.
DryingKGoalKCalculationK-KcorrectKanswer-DryKstandardK+K(DryKstandardKxK10%)K=K____________________
WhyKdoesKdemolitionKoccurK-KcorrectKanswer-1.KRemovingKMaterialsKtoKeliminateKsafetyKhazards
2.KRemovingKmaterialsKthatKhaveKsufferedKprimaryKdamageKandKareKnotKrestorable
3.KRemovingKporousKmaterialsKthatKareKholdingKodor
5.KRemovingKvaporKbarriersKtoKassistKwithKdryingKefforts
6.KRemovingKmaterialsKtoKreduceKdryingKtime
7.KRemovingKmaterialsKtoKopenKcavitiesKorKareasKtoKprovideKadditionalKneededKservices
UsefulKforKadjuster,KorKnotesKonKxactimateKlineKitems
RecommendationKCalculationK-KcorrectKanswer-StepK1:KInstallKOneKairKmoverKinKeachKaffectedKRoom
StepK2:KAddKoneKairKmoverKforKeveryK50-70KsquareKfeetKofKaffectedKwetKfloorKinKeachKroom
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