2025 IRC EXAM CHAPTERS 3 AND 4
QUESTIONS WITH CORRECT ANSWERS
PhotoelectricTsmokeTalarmsTshallTnotTbeTinstalledTlessTthanT_____________TfeetThorizontallyTfromTaTperm
anentlyTinstalledTcookingTappliance.
IonizationTalarmTseparationTdistanceTisT__________Tfeet,TandTionizationTalarmsTwithTaTsilencingTbuttonTisT
__________Tfeet.T-TCORRECTTANSWERT-6
20
10
SectionTR314.3.1TInstallationTnearTcookingTappliances,TItemT3.
SmokeTalarmsTshallTreceiveTtheirTprimaryTpowerTfromTtheTbuildingTwiringTwhereTsuchTwiringTisTservedTfro
mTaTcommercialTsourceTand,TwhereTprimaryTpowerTisTinterrupted,TshallTreceiveTpowerTfromTaT__________
___T.T-TCORRECTTANSWERT-battery
SectionTR314.6TPowerTsource.
PhysicalTinterconnectionTofTsmokeTalarmsTshallTnotTbeTrequiredTwhereT_____________T_____________Tal
armsTareTinstalled.T-TCORRECTTANSWERT-listedTwireless
(allTalarmsTmustTsoundTuponTactivationTofToneTalarm)
SectionTR314.4TInterconnection.
SmokeTalarmsTareTrequiredTinTeachT______________T____________.
SmokeTalarmsTareTrequiredToutsideTeachTseparateT__________T__________.T
SmokeTalarmsTareTrequiredTonTeachTadditionalTstoryTofTtheTdwelling,TincludingT___________TandT_______
___T___________TandTnotTincludingT_________T_________TandT___________T___________.T-
TCORRECTTANSWERT-sleepingTroom
sleepingTarea
basements,ThabitableTattics
crawlTspaces,TuninhabitableTatticsT
, R314.3TSmokeTAlarmsT-TLocation
CarbonTmonoxideTalarmsTshallTbeTinstalledToutsideTofTeachTseparateT_____________T_____________TinTt
heTimmediateTvicinityTofTtheT_____________T.T-TCORRECTTANSWERT-sleepingTarea
bedrooms
(COTalarmsTareTnotTrequiredTifTthereTareTnoTfuel-firedTappliancesTandTnoTattachedTgarage)
SectionTR315.3TLocation
WhenTaT_______-
_________T___________TisTlocatedTwithinTaTbedroomTorTitsTattachedTbathroom,TaTcarbonTmonoxideTalar
mTshallTbeTinstalledTwithinTtheTbedroom.T-TCORRECTTANSWERT-fuel-burningTappliance
R315.3TCarbonTMonoxideTAlarmsT-TLocation
FoamTplasticTinsulationTinstalledTatT4TinchesTinTthicknessTorTlessTshallThaveTaTflameTspreadTindexTofTnotTmo
reTthanT_____________TandTaTsmoke-developedTindexTofTnotTmoreTthanT_____________T.T-
TCORRECTTANSWERT-75
450
SectionTR316.3.1TFoamTplasticTinsulationT4TinchesTthickTorTless.
FoamTplasticTshallTbeTseparatedTfromTtheTinteriorTofTaTbuildingTbyTanTapprovedT_____________T________
_____TofTnotTlessTthanT_____________T-inchTgypsumTwallboard.T-TCORRECTTANSWERT-thermalTbarrierT
1/2
SectionTR316.4TThermalTbarrier.
ATthermalTbarrierTisTnotTrequiredTforTfoamTplasticTinsulationTinTanTatticTthatTisTenteredTonlyTforTpurposesTof
T_____________TorT_____________T.T-TCORRECTTANSWERT-repairs
QUESTIONS WITH CORRECT ANSWERS
PhotoelectricTsmokeTalarmsTshallTnotTbeTinstalledTlessTthanT_____________TfeetThorizontallyTfromTaTperm
anentlyTinstalledTcookingTappliance.
IonizationTalarmTseparationTdistanceTisT__________Tfeet,TandTionizationTalarmsTwithTaTsilencingTbuttonTisT
__________Tfeet.T-TCORRECTTANSWERT-6
20
10
SectionTR314.3.1TInstallationTnearTcookingTappliances,TItemT3.
SmokeTalarmsTshallTreceiveTtheirTprimaryTpowerTfromTtheTbuildingTwiringTwhereTsuchTwiringTisTservedTfro
mTaTcommercialTsourceTand,TwhereTprimaryTpowerTisTinterrupted,TshallTreceiveTpowerTfromTaT__________
___T.T-TCORRECTTANSWERT-battery
SectionTR314.6TPowerTsource.
PhysicalTinterconnectionTofTsmokeTalarmsTshallTnotTbeTrequiredTwhereT_____________T_____________Tal
armsTareTinstalled.T-TCORRECTTANSWERT-listedTwireless
(allTalarmsTmustTsoundTuponTactivationTofToneTalarm)
SectionTR314.4TInterconnection.
SmokeTalarmsTareTrequiredTinTeachT______________T____________.
SmokeTalarmsTareTrequiredToutsideTeachTseparateT__________T__________.T
SmokeTalarmsTareTrequiredTonTeachTadditionalTstoryTofTtheTdwelling,TincludingT___________TandT_______
___T___________TandTnotTincludingT_________T_________TandT___________T___________.T-
TCORRECTTANSWERT-sleepingTroom
sleepingTarea
basements,ThabitableTattics
crawlTspaces,TuninhabitableTatticsT
, R314.3TSmokeTAlarmsT-TLocation
CarbonTmonoxideTalarmsTshallTbeTinstalledToutsideTofTeachTseparateT_____________T_____________TinTt
heTimmediateTvicinityTofTtheT_____________T.T-TCORRECTTANSWERT-sleepingTarea
bedrooms
(COTalarmsTareTnotTrequiredTifTthereTareTnoTfuel-firedTappliancesTandTnoTattachedTgarage)
SectionTR315.3TLocation
WhenTaT_______-
_________T___________TisTlocatedTwithinTaTbedroomTorTitsTattachedTbathroom,TaTcarbonTmonoxideTalar
mTshallTbeTinstalledTwithinTtheTbedroom.T-TCORRECTTANSWERT-fuel-burningTappliance
R315.3TCarbonTMonoxideTAlarmsT-TLocation
FoamTplasticTinsulationTinstalledTatT4TinchesTinTthicknessTorTlessTshallThaveTaTflameTspreadTindexTofTnotTmo
reTthanT_____________TandTaTsmoke-developedTindexTofTnotTmoreTthanT_____________T.T-
TCORRECTTANSWERT-75
450
SectionTR316.3.1TFoamTplasticTinsulationT4TinchesTthickTorTless.
FoamTplasticTshallTbeTseparatedTfromTtheTinteriorTofTaTbuildingTbyTanTapprovedT_____________T________
_____TofTnotTlessTthanT_____________T-inchTgypsumTwallboard.T-TCORRECTTANSWERT-thermalTbarrierT
1/2
SectionTR316.4TThermalTbarrier.
ATthermalTbarrierTisTnotTrequiredTforTfoamTplasticTinsulationTinTanTatticTthatTisTenteredTonlyTforTpurposesTof
T_____________TorT_____________T.T-TCORRECTTANSWERT-repairs