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Nadca Questions And Answers Updated 2026

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Exam (elaborations)

Nadca Questions And Answers Updated 2026

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NADCA QUESTIONS AND ANSWERS UPDATED 2026

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NADCA QUESTIONS AND ANSWERS
UPDATED 2026
AbrasionB-BAnswerABsurfaceBlossBofBmaterialBdueBtoBfriction.

AccessBdoorB-
BAnswerFabricatedBmetalBbarrierB(hatch)BbyBwhichBaBserviceBopeningBisBaccessedBorBcl
osed

AdheredBSubstanceB-
BAnswerABmaterialBthatBisBnotBremovedBbyBcleaningBandBrestorationBprocedures

AgitationB-
BAnswerABprocessBthatBinvolvedBusingBanBagitationBdeviceBtoBdislodgeBorBmoveBnon-
adheredBsubstancesBwithinBanBHVACBsystem.

AgitationBDeviceB-BAnswerABtoolBorBtollsBusedBtoBdislodgeBorBmoveBnon-
adheredBsubstancesBwithinBtheBHVACBsystem.

AirBDuctB-
BAnswerABpassagewayBforBdistributionBandBextractionBorBair,BexcludingBplenumsBnotBin
stalledBinBaccordanceBwithBSMACNABstandards

AirBDuctBCoveringB-
BAnswerMaterialsBsuchBasBinsulationBandBbandingBusedBtoBcoverBtheBexternalBsurfaceB
ofBaBduct.

AirBfiltrationBdeviceB(AFD)B-BAnswerABportableBorBtransportable,Bself-
containedBblowerBassemblyBdesignedBtoBmoveBaBdefinedBvolumeBofBairBequippedBwith
BoneBorBmoreBstagesBofBparticulateBfiltration.BDependingBonBtheBmodeBofBuse,BanBAF
DBthatBfiltersBandBre-
circulatesBairBisBreferredBtoBasBanB"airBscrubber".BOneBthatBfiltersBairBandBcreatesBneg
ativeBpressureBisBreferredBtoBasBaB"negativeBairBmachine".

, AirBHandlingBUnitB(AHU)B-
BAnswerABpackageBassembly,BusuallyBconnectedBtoBductBwork,BthatBmovesBairBandBma
yBalsoBcleanBandBconditionBtheBair.

Central-stationBAir-handlingBunitB-BAnswerFactory-
Bmade,BencasedBassemblyBconsistingBofBtheBfanBorBfansBandBotherBnecessaryBequipme
nt,BthatBperformBoneBorBmoreBofBtheBfunctionsBofBcirculating,Bcleaning,Bheating,Bcooli
ng,Bhumidifying,Bdehumidifying,BandBmixingBofBair;BdoesBnotBincludeBaBheatingBorBcoo
lingBsource.

Cooling-HeatingBUnitB-
BAnswerUnitBthatBincludesBmeansBforBcoolingBandBheating,BandBwhichBmayBalsoBinclu
deBmeansBforBotherBair-handlingBunitBfunctions.BThisBcouldBincludeBductlessBmini-
splitBsystems,BpackagedBterminalBairBconditioner,Bwall/windowBunits,BfansBcoilBunits,Bsp
litBsystemsBthatBprovideBheatingBandBcoolingBinBanBenvironment.

coolingBunitB-
BAnswerunitBthatBincludesBmeansBforBcooling,BandBwhichBmayBalsoBincludeBmeansBfor
BotherBair-handlingBunitBfunctions.

HeatingBunitB-
BAnswerUnitBthatBincludesBmeansBforBheating,BandBwhichBmayBalsoBincludeBmeansBfor
BotherBair-handlingBunitBfunctions.

MakeBUpBAirBUnitB-BAnswerFactory-assembledBfan-
heaterBorBcooling/dehumidifyingBunitBthatBsuppliesBtemperedBfreshBairBtoBreplaceBairB
thatBisBexhausted.BCentrifugalBorBaxialBfansBareBusedBwithBdirectBgas-
fired,Belectric.BorBwaterBheaterBsections.

VentilatingBUnitB-
BAnswerUnitBwithBmeansBtoBprovideBventilation,BandBwhichBmayBalsoBincludeBmeansBf
orBotherBair-handlingBunitBfunctions

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Uploaded on: April 11, 2026
Number of pages: 11
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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