IFSTA 7 Ch 4 Fire Dynamics Questions
and Answers 2025-2026
ConvectionAis:
A.AtransferAofAheatAthroughAthroughAspaceAbayAinfraredArays
B.AtransferAofAheatAthroughAaAsolidAmedium
C.AnotAconsideredAaAmethodAofAheatAtransfer
D.AtransferAofAheatAthroughAliquidsAorAgassesAbyAcirculatingAcurrentsA-
ACORRECTAANSWERSA-
D.AtransferAofAheatAthroughAliquidsAorAgassesAbyAcirculatingAcurrents
FactorsAthatAwillAinfluenceAtheAairAcurrentsAinAaAstructureAfireAis/are:A
A.AaAverticalAventAopening
B.AoutsideAwindAdirection
C.AtheAdirectionAtheAhoseAattackAteamAisAusingAinArelationAtoAtheAfire
D.AallAofAtheAaboveA-ACORRECTAANSWERSA-D.AallAofAtheAabove
WhenAusingAaAsmokeAejectorAinAaAwindowAforAnegativeApressureAventilation,AtheAarrowAfor
AairAflowAshouldAleadAto:
A.AtheAinside
B.AthereAisAnoAarrowAforAairflow
C.AeitherAtheAinsideAorAoutside;AitAmakesAnoAdifference
D.AtheAoutsideA-ACORRECTAANSWERSA-D.AtheAoutside
TheAquickestAwayAtoApenAaAbuildingAforAventilationAisAto:
A.AforceAopenAlockedAdoors
B.AbreakAglass
C.AcutAaAholeAinAtheAroof
D.AopenAaAholeAinAanAexteriorAwallA-ACORRECTAANSWERSA-B.AbreakAglass
TheAmixtureAofAvaporAtoAairAthatAwillAigniteAwhenAsubjectedAtoAanAignitionAsourceAisAknowAa
sAthe:A
A.AflashApoint
B.AVaporAdensity
C.AexplosiveArange
D.AburningApointA-ACORRECTAANSWERSA-C.AexplosiveArange
ConservativeAestimatesAsayAthatAtheApresenceAofAaAscreenAinAaAwindowAreducesAtheAairflo
wAbyAnearlyA_____APercent
A.A20
B.A75
C.A50
, D.A100A-ACORRECTAANSWERSA-C.A50
TheAphaseAofAfireAcharacterizedAbyAtemperatureAdeclineAandAdiminishingAfireAisAcalled:A
A.Aignition
B.AGrowth
C.AfullyAdeveloped
D.ADecayA-ACORRECTAANSWERSA-D.ADecay
TheAtransferAofAheatAbyAtheAmovementAofAgassesAorAliquidAisAknownAas:A
A.Aconduction
B.ARadiation
C.AConvection
D.Adirect-flameAcontactA-ACORRECTAANSWERSA-C.AConvection
heatAtransferAthatAtakesAplaceAinAtheAformAofAelectromagneticAwavesAisAknownAas:A
A.Aconvection
B.Aradiation
C.Aconduction
D.AflameAcontactA-ACORRECTAANSWERSA-B.Aradiation
whenAheAcolderAofAtheAtwoAbodiesAinAcontactAabsorbsAheatAuntilAbothAobjectsAareAtheAsam
eAtemperatureA________AhasAtakenAplace
A.AspecificAheatAequilization
B.AheatAtransfer
C.AlatentAheatAvaporization
D..AosmosisAtransferA-ACORRECTAANSWERSA-B.AheatAtransfer
HeatAcanAtravelAthroughoutAaAburningAbuildingAbyAonAforAmoreAofAtheAfollowingAmethods:A
A.Aconduction,AradiationAandAconvection
B.Aextension,AconductionAandAexposure
C.Aconvention,AextensionAandAexpansion
D.Aconduction,Aradiation,AandAexpansionA-ACORRECTAANSWERSA-
A.Aconduction,AradiationAandAconvection
whenAtheAconcentrationAofAgasAisAwithinAtheArangeAwhereAitAcanAignite,AitAisAsaidAtoA:A
A.AbeAatAitsAignitionAtemperature
B.AhaveAreachedAitAboilingApoint
C.AbeAwithinAitsAflammable/explosiveArange
D.AbeAatAitsAflashApointA-ACORRECTAANSWERSA-
C.AbeAwithinAitsAflammable/explosiveArange
whatAstageAofAfireAreleasesAtheAmaximumAamountAofAheatAforAtheAavailableAfuelAandAprodu
cesAlargeAvolumesAofAfireAgases?A
A.AIgnition
B.AfullyAdeveloped
C.Agrowth
and Answers 2025-2026
ConvectionAis:
A.AtransferAofAheatAthroughAthroughAspaceAbayAinfraredArays
B.AtransferAofAheatAthroughAaAsolidAmedium
C.AnotAconsideredAaAmethodAofAheatAtransfer
D.AtransferAofAheatAthroughAliquidsAorAgassesAbyAcirculatingAcurrentsA-
ACORRECTAANSWERSA-
D.AtransferAofAheatAthroughAliquidsAorAgassesAbyAcirculatingAcurrents
FactorsAthatAwillAinfluenceAtheAairAcurrentsAinAaAstructureAfireAis/are:A
A.AaAverticalAventAopening
B.AoutsideAwindAdirection
C.AtheAdirectionAtheAhoseAattackAteamAisAusingAinArelationAtoAtheAfire
D.AallAofAtheAaboveA-ACORRECTAANSWERSA-D.AallAofAtheAabove
WhenAusingAaAsmokeAejectorAinAaAwindowAforAnegativeApressureAventilation,AtheAarrowAfor
AairAflowAshouldAleadAto:
A.AtheAinside
B.AthereAisAnoAarrowAforAairflow
C.AeitherAtheAinsideAorAoutside;AitAmakesAnoAdifference
D.AtheAoutsideA-ACORRECTAANSWERSA-D.AtheAoutside
TheAquickestAwayAtoApenAaAbuildingAforAventilationAisAto:
A.AforceAopenAlockedAdoors
B.AbreakAglass
C.AcutAaAholeAinAtheAroof
D.AopenAaAholeAinAanAexteriorAwallA-ACORRECTAANSWERSA-B.AbreakAglass
TheAmixtureAofAvaporAtoAairAthatAwillAigniteAwhenAsubjectedAtoAanAignitionAsourceAisAknowAa
sAthe:A
A.AflashApoint
B.AVaporAdensity
C.AexplosiveArange
D.AburningApointA-ACORRECTAANSWERSA-C.AexplosiveArange
ConservativeAestimatesAsayAthatAtheApresenceAofAaAscreenAinAaAwindowAreducesAtheAairflo
wAbyAnearlyA_____APercent
A.A20
B.A75
C.A50
, D.A100A-ACORRECTAANSWERSA-C.A50
TheAphaseAofAfireAcharacterizedAbyAtemperatureAdeclineAandAdiminishingAfireAisAcalled:A
A.Aignition
B.AGrowth
C.AfullyAdeveloped
D.ADecayA-ACORRECTAANSWERSA-D.ADecay
TheAtransferAofAheatAbyAtheAmovementAofAgassesAorAliquidAisAknownAas:A
A.Aconduction
B.ARadiation
C.AConvection
D.Adirect-flameAcontactA-ACORRECTAANSWERSA-C.AConvection
heatAtransferAthatAtakesAplaceAinAtheAformAofAelectromagneticAwavesAisAknownAas:A
A.Aconvection
B.Aradiation
C.Aconduction
D.AflameAcontactA-ACORRECTAANSWERSA-B.Aradiation
whenAheAcolderAofAtheAtwoAbodiesAinAcontactAabsorbsAheatAuntilAbothAobjectsAareAtheAsam
eAtemperatureA________AhasAtakenAplace
A.AspecificAheatAequilization
B.AheatAtransfer
C.AlatentAheatAvaporization
D..AosmosisAtransferA-ACORRECTAANSWERSA-B.AheatAtransfer
HeatAcanAtravelAthroughoutAaAburningAbuildingAbyAonAforAmoreAofAtheAfollowingAmethods:A
A.Aconduction,AradiationAandAconvection
B.Aextension,AconductionAandAexposure
C.Aconvention,AextensionAandAexpansion
D.Aconduction,Aradiation,AandAexpansionA-ACORRECTAANSWERSA-
A.Aconduction,AradiationAandAconvection
whenAtheAconcentrationAofAgasAisAwithinAtheArangeAwhereAitAcanAignite,AitAisAsaidAtoA:A
A.AbeAatAitsAignitionAtemperature
B.AhaveAreachedAitAboilingApoint
C.AbeAwithinAitsAflammable/explosiveArange
D.AbeAatAitsAflashApointA-ACORRECTAANSWERSA-
C.AbeAwithinAitsAflammable/explosiveArange
whatAstageAofAfireAreleasesAtheAmaximumAamountAofAheatAforAtheAavailableAfuelAandAprodu
cesAlargeAvolumesAofAfireAgases?A
A.AIgnition
B.AfullyAdeveloped
C.Agrowth