IAAI CFI STUDY QUESTIONS WITH
CORRECT ANSWERS GRADED A+
FOR 2026 -2027 ASSURED EXCEL!!
ANliquidNwithNaNflashNpointNABOVEN100FN-NNCORRECTNANSWERSCombustibleNLiquid
IfNtheNcurrentNflowingNoutNfromNanNelectricalNpanelNisN12.5Namps,NandNitNthenNflowsNthroughNanNel
ectricalNloadNofN1500Nwatts,NwhatNisNtheNamperageNofNtheNremainingNcurrentNflowNofNtheNreturnNc
ircuit?N-NNCORRECTNANSWERS12.5
IfNaNhairNdryerNdrawsN8.3ampsN(inNaNhomeNwithN120-voltNservice),NwhatNisNtheNwattage?
*PowerN(P)N=NcurrentN(I)NxNvoltageN(V)
WattsN=NampsNxNvoltsN-NNCORRECTNANSWERS1000
TheNyearNofNtheNfirstNeditionNofNNFPAN1033N-NNCORRECTNANSWERS1987
TheNrecommendedNdistanceNforNsecuringNtheNperimeterNofNaNblastNscene
*ThatNis,NtheNdistanceNfromNtheNfurthestNdebrisN-NNCORRECTNANSWERS1.5Ntimes
WhatNtemperatureNinNtheNupperNgasNlayerNcausesNtheNonsetNofNFlashover?N-
NNCORRECTNANSWERS1100°F
TheNtemperatureNatNwhichNcopperNmeltsN-NNCORRECTNANSWERS1960°F
,TheNmeasurementNofNtheNradiantNheatNfluxN(fromNgasNlayerNtoNtheNfloor)NthatNindicatesNtheNonset
NofNflashoverN-NNCORRECTNANSWERS2NW/cm2
TheNvoltageNbetweenNtheNtwoNhotNwiresNatNtheNserviceNentranceNcablesNinNmostNsingle-
familyNresidencesNinNtheNUnitedNStatesN(single-phaseNserviceNwithNthreeNwires)N-
NNCORRECTNANSWERS240Nvolts
TheNrevisionNcycleNforNNFPAN921N(timespan)N-NNCORRECTNANSWERS3Nyears
TheNflashNpointNofNpowerNsteeringNfluidN-NNCORRECTNANSWERS350°F
InNhigh-pressureNfuel-
injectedNvehicles,NthisNisNtheNtypicalNrangeNofNpressureNthatNisNusedNtoNpumpNfuelNfromNaNfuelNtan
kN-NNCORRECTNANSWERS35-70Np.s.i.
TheNlowerNexplosiveNandNupperNexplosiveNlimitNofNnaturalNgasN(methane)?N-
NNCORRECTNANSWERS5NandN17
TheNignitionNtemperatureNofNpowerNsteeringNfluidN-NNCORRECTNANSWERS680°F
AnyNsubstanceNthatNcanNundergoNcombustionN-NNCORRECTNANSWERSFuel
TwoNfactorsNorNsituationsNleadingNtoNaNfireNthatNmayNshowNtheNnatureNofNtheNincidentNresponsibili
ty.N-NNCORRECTNANSWERSActNorNOmission
ThisNconceptNshouldNnotNbeNincludedNinNaNsummaryNreportNofNfindings.N-
NNCORRECTNANSWERSAdditionalNInvestigativeNRecommendations
, ANlawNthatNmayNgovernNtheNfireNinvestigationNofNaNboatN-NNCORRECTNANSWERSAdmiraltyNLaw
ANtypeNofNdeviceNinNaNvehicle,NwhichNcanNcauseNanNelectricalNoverloadNtoNfactoryNinstalledNwiringN
-NNCORRECTNANSWERSAfter-marketNEquipment
EvidenceNofNsmokeNorNsootNinNtheNlungs,Nbronchi,NandNtracheaNisNoneNofNtheNmostNsignificantNfact
orsNinNconfirmingNthat,NatNtheNtimeNofNtheNfire,NtheNvictimNwasNWHAT?N-
NNCORRECTNANSWERSAliveNandNBreathing
ThoseNwhoNhaveNtheNresponsibilityNforNmonitoringNsafetyNconditionsNatNtheNfireNorNexplosionNsce
neN-NNCORRECTNANSWERSAllNTeamNMembers
TheNmeltingNtemperatureNofNaluminumN-NNCORRECTNANSWERS1220°F
WhichNoneNofNtheseNisNNOTNconsideredNaNcompetentNignitionNsource?N
Metal-to-metalNsparks,
Aluminum-to-pavementNsparks,
Metal-to-pavementNsparks,
MotorNbearingNsparksN-NNCORRECTNANSWERSAluminum-to-pavementNsparks
ANmeaningfulNanalysisNofNaNfireNrequiresNanNunderstandingNofNtheNfireNgrowth,NtheNtotalNheatNrele
ased,NandNWHAT?N-NNCORRECTNANSWERSHeatNReleaseNRate
WhatNdoesNheNtermNAFCINstandNfor?NAnd,NtheN"A"NspecificallyNrepresentsNwhat?N-
NNCORRECTNANSWERSArc-faultNcircuitNinterrupter
TheNorganizationNthatNdevelopsNstandardNmethodsNforNtestingNmaterialsN-
NNCORRECTNANSWERSASTM
CORRECT ANSWERS GRADED A+
FOR 2026 -2027 ASSURED EXCEL!!
ANliquidNwithNaNflashNpointNABOVEN100FN-NNCORRECTNANSWERSCombustibleNLiquid
IfNtheNcurrentNflowingNoutNfromNanNelectricalNpanelNisN12.5Namps,NandNitNthenNflowsNthroughNanNel
ectricalNloadNofN1500Nwatts,NwhatNisNtheNamperageNofNtheNremainingNcurrentNflowNofNtheNreturnNc
ircuit?N-NNCORRECTNANSWERS12.5
IfNaNhairNdryerNdrawsN8.3ampsN(inNaNhomeNwithN120-voltNservice),NwhatNisNtheNwattage?
*PowerN(P)N=NcurrentN(I)NxNvoltageN(V)
WattsN=NampsNxNvoltsN-NNCORRECTNANSWERS1000
TheNyearNofNtheNfirstNeditionNofNNFPAN1033N-NNCORRECTNANSWERS1987
TheNrecommendedNdistanceNforNsecuringNtheNperimeterNofNaNblastNscene
*ThatNis,NtheNdistanceNfromNtheNfurthestNdebrisN-NNCORRECTNANSWERS1.5Ntimes
WhatNtemperatureNinNtheNupperNgasNlayerNcausesNtheNonsetNofNFlashover?N-
NNCORRECTNANSWERS1100°F
TheNtemperatureNatNwhichNcopperNmeltsN-NNCORRECTNANSWERS1960°F
,TheNmeasurementNofNtheNradiantNheatNfluxN(fromNgasNlayerNtoNtheNfloor)NthatNindicatesNtheNonset
NofNflashoverN-NNCORRECTNANSWERS2NW/cm2
TheNvoltageNbetweenNtheNtwoNhotNwiresNatNtheNserviceNentranceNcablesNinNmostNsingle-
familyNresidencesNinNtheNUnitedNStatesN(single-phaseNserviceNwithNthreeNwires)N-
NNCORRECTNANSWERS240Nvolts
TheNrevisionNcycleNforNNFPAN921N(timespan)N-NNCORRECTNANSWERS3Nyears
TheNflashNpointNofNpowerNsteeringNfluidN-NNCORRECTNANSWERS350°F
InNhigh-pressureNfuel-
injectedNvehicles,NthisNisNtheNtypicalNrangeNofNpressureNthatNisNusedNtoNpumpNfuelNfromNaNfuelNtan
kN-NNCORRECTNANSWERS35-70Np.s.i.
TheNlowerNexplosiveNandNupperNexplosiveNlimitNofNnaturalNgasN(methane)?N-
NNCORRECTNANSWERS5NandN17
TheNignitionNtemperatureNofNpowerNsteeringNfluidN-NNCORRECTNANSWERS680°F
AnyNsubstanceNthatNcanNundergoNcombustionN-NNCORRECTNANSWERSFuel
TwoNfactorsNorNsituationsNleadingNtoNaNfireNthatNmayNshowNtheNnatureNofNtheNincidentNresponsibili
ty.N-NNCORRECTNANSWERSActNorNOmission
ThisNconceptNshouldNnotNbeNincludedNinNaNsummaryNreportNofNfindings.N-
NNCORRECTNANSWERSAdditionalNInvestigativeNRecommendations
, ANlawNthatNmayNgovernNtheNfireNinvestigationNofNaNboatN-NNCORRECTNANSWERSAdmiraltyNLaw
ANtypeNofNdeviceNinNaNvehicle,NwhichNcanNcauseNanNelectricalNoverloadNtoNfactoryNinstalledNwiringN
-NNCORRECTNANSWERSAfter-marketNEquipment
EvidenceNofNsmokeNorNsootNinNtheNlungs,Nbronchi,NandNtracheaNisNoneNofNtheNmostNsignificantNfact
orsNinNconfirmingNthat,NatNtheNtimeNofNtheNfire,NtheNvictimNwasNWHAT?N-
NNCORRECTNANSWERSAliveNandNBreathing
ThoseNwhoNhaveNtheNresponsibilityNforNmonitoringNsafetyNconditionsNatNtheNfireNorNexplosionNsce
neN-NNCORRECTNANSWERSAllNTeamNMembers
TheNmeltingNtemperatureNofNaluminumN-NNCORRECTNANSWERS1220°F
WhichNoneNofNtheseNisNNOTNconsideredNaNcompetentNignitionNsource?N
Metal-to-metalNsparks,
Aluminum-to-pavementNsparks,
Metal-to-pavementNsparks,
MotorNbearingNsparksN-NNCORRECTNANSWERSAluminum-to-pavementNsparks
ANmeaningfulNanalysisNofNaNfireNrequiresNanNunderstandingNofNtheNfireNgrowth,NtheNtotalNheatNrele
ased,NandNWHAT?N-NNCORRECTNANSWERSHeatNReleaseNRate
WhatNdoesNheNtermNAFCINstandNfor?NAnd,NtheN"A"NspecificallyNrepresentsNwhat?N-
NNCORRECTNANSWERSArc-faultNcircuitNinterrupter
TheNorganizationNthatNdevelopsNstandardNmethodsNforNtestingNmaterialsN-
NNCORRECTNANSWERSASTM