TCFP Fire Investigator
m m
IsmNFPAm921mamguidemormamstandard?mANS:mmmItmismthemGuidemformFiremandmExplosionmInv
estigations
mQUIZ:mmWhatmaremthemsixmstepsmofmthemscientificmmethod?mANS:mmmRecognizemthemneed
Definemthemproblem
Collectmthemdata
Analyzemthemdata
Developmamhypothesis
Testmthemhypothesis
mQUIZ:mmWhatmstepmofmthemscientificmmethodmisminductivemreasoning?mANS:mmmAnalyzemthe
mdata
mQUIZ:mmWhatmstepmofmthemscientificmmethodmismdeductivemreasoning?mANS:mmmTestmthemhy
pothesis
QUIZ:mmWhatmaremthemfourmpartsmofmthemfiremtetrahedron?mANS:mmmFuelm(reducingmagent)
m
Heat
Oxidizingmagent
Uninhibitedmchemicalmchainmreaction
mQUIZ:mmWhatmkindmofmreactionmabsorbsmenergy,manmendothermicmormanmexothermicmreacti
on?mANS:mmmEndothermic
m QUIZ:mmWhatmismheatmtransfermbymdirectmcontactmcalled?mANS:mmmConduction
m QUIZ:mmWhatmismheatmtransfermbymgasmflowm/mairmmovementmcalled?mANS:mmmConvection
m QUIZ:mmWhatmismheatmtransfermbymmicrowavemenergymcalled?mANS:mmmRadiation
QUIZ:mmWhatmismamfuelmcontrolledmfire?mANS:mmmAmfiremthatmismlimitedmbymthemamountmofmco
m
mbustibles.
mQUIZ:mmWhatmismamventilationmcontrolledmfire?mANS:mmmAmfiremthatmismlimitedmbymthemamoun
tmofmoxygen.
mQUIZ:mmWhatmaremthemstagesmofmfiremgrowth?mANS:mmmIgnition
Growth
Flashover
FullymDeveloped
Decay
mQUIZ:mmWhatmismamflashover?mANS:mmmThemtransitionmphasemfrommgrowthmtomfullymdevelop
ed,mwheremallmsurfacesmreachmignitionmtemperaturemalmostmsimultaneously.
,mQUIZ:mmWhatmismignitionmofmthemundersidemofmthemhotmgasmlayermcalled?mANS:mmmFlameov
ermormrollover
mQUIZ:mmWhatmfactorsminfluencemflashovermconditions?mANS:mmmSizemofmthemcompartment
Heightmofmceiling
Ventilation
Amountmofmfuel
Layoutmofmfuel
Locationmofmfireminmthemcompartment
mQUIZ:mmWhatmaremfirempatterns?mANS:mmmThemphysicalmmanifestationmofmthemaffectsmofmfire
monmmaterials.
mQUIZ:mmWhatmaremthemdifferentmtypesmofmfirempatternsmonmthemwallsmandmceiling?mANS:mmm
PlumemGeneratedmpatternsm(oftenmVmshaped)
Ventilationmgeneratedmpatterns
Hotmgasmlayermpatternsm(Linemofmdemarcation)
mQUIZ:mmWhatmismspalling?mANS:mmmThemseparationmofmchunksmofmconcretemwithmexplosivem
forcemcausedmbymthemexpansionmofmwaterm(moisture)mtrappedminmthemconcretemasmitmturnsmt
omsteam
m QUIZ:mmWhatmismchar?mANS:mmmPyrolizedmcarbonaceousmmaterial
mQUIZ:mmWhatmismoxidation?mANS:mmmPhysicalmchangeminmappearancemofmammaterialmresulti
ngmfrommthemcombinationmofmoxygen.
mQUIZ:mmWhatmismalloying?mANS:mmmMixingmtwommetalsmheatedmthenmcooledmtomchangemthei
rmproperties.mOftenmmeltsmatmamlowermtemperature.
mQUIZ:mmWhatmismamcleanmburn?mANS:mmmWhenmtheremwasmenoughmheatmtomburnmawaymallm
carbonmdepositsm(soot)monmamsurfacemleavingmam"clean"msurface.mOccursmonmnon-
combustiblemsurfaces.
mQUIZ:mmWhatmismsoot?mANS:mmmElementalmcarbonmproducedmduringmincompletemcombusti
on.
mQUIZ:mmWhatmismcalcination?mANS:mmmWhenmchemicallymboundmwatermismdrivenmoutmofmgy
psummwallsmbymthemheatmofmthemfire.
mQUIZ:mmDoesmam25mWattmlightmbulbmexpandmtowardsmthemfiremormpullminwardmawaymfrommit
?mANS:mmmBulbsm25mwattsmormlessmpullmaway.mBulbsmgreatermthanm25mwattsmwillmexpandmto
wardsmthemfire.
,mQUIZ:mmWhatmcausesmheatmshadowing?mANS:mmmAnmobjectmblockingmthemtravelmofmradiate
dmheat.
mQUIZ:mmWhatmismamdeadmload?mANS:mmmThemweightmofmthingsmattachedmtomthembuilding,mlik
emflooring,mcloumns,mandmroofmcoverings.
m QUIZ:mmWhatmismamlivemload?mANS:mmmAmloadmthatmcanmmove,mlikempeople,mfurniture,mwind,
m water,mandmsnow.
mQUIZ:mmWhatmismcompartmentation?mANS:mmmDesignmfeaturesmofmambuildingmthatmlimitmfirem
growthmtomthemroommofmorigin.
mQUIZ:mmWhatmaremthemfivembuildingmconstructionmtypes?mANS:mmmTypemIm-mFiremresistant
TypemIIm-mNonmcombustible
TypemIIIm-mOrdinary
TypemIVm-mHeavymtimber
TypemVm-mWoodmframe
mQUIZ:mmWhatmismordinarymconstruction?mANS:mmmExteriormwallsmaremmasonrymandmframemi
smwood.
mQUIZ:mmWhatmismwoodmframemconstruction?mANS:mmmLightweightmwoodmconstruction,muse
dminmapartments,mhouses.
m QUIZ:mmWhatmismplatformmframemconstruction?mANS:mmmEachmfloormismamseperatemplatform
.
mQUIZ:mmWhatmismballoonmframemconstruction?mANS:mmmThemwallmstudsmextendmfrommthemfo
undationmtomthemroof.
mQUIZ:mmWhatmismOhm'smLaw?mANS:mmmV=IR
(Em=mImxmR)
m QUIZ:mmWhatmismvoltage?mANS:mmmPressure
m QUIZ:mmWhatmismcurrent?mANS:mmmFlow
m QUIZ:mmWhatmismresistance?mANS:mmmFriction,moppositionmtomthemflow
m QUIZ:mmWhatmismanmoverload?mANS:mmmPowermneedsmexceedmthemcircuit'smcapacity.
QUIZ:mmAlternatingmCurrentmVSmDirectmCurrentmANS:mmmAlternatingmcurrentm-
m
themelectronsmflowmoutmfrommthemsourcemandmthenmbackmtomit,malternatingmdirections.
m
Directmcurrentm-melectronsmflowmonemway.
, mQUIZ:mmSinglemPhasemservicemANS:mmmResidential.mThreemconductors:mTwominsulatedmco
nductorsmatm120mVmeach,mandmambaremgroundmwire.
mQUIZ:mmThreemphasemsystemmANS:mmmCommercial.mFourmconductors:mThreeminsulatedmco
nductorsm(480,m240,morm208mV),mandmambaremgroundmwire.
mQUIZ:mmWhatmismthemdifferencembetweenmgroundingmandmbonding?mANS:mmmGroundingmco
nnectsmthemsystemmtomthemearthm(ground).mBondingmconnectsmtomsystemsmtogethermsomthe
mchargemstaysmthemsamembetweenmthem.
mQUIZ:mmWhatmismovercurrentmprotection?mANS:mmmAmdevicemthatmprotectsmthemsystemmfrom
mexcessmcurrent.mIncludes:
Circuitmbreakers
Plugmfuses
TypemSmfuses
Timemdelaymfuses
Cartridgemfuses
QUIZ:mmWhatmaremthemcolorsmofmresidentialmwires?mANS:mmmHotm-mblackmormred
m
Neutralm-mgraymormwhite
Groundm-mbaremormgreen
mQUIZ:mmWhatmaremsomemmethodsmofmelectricalmheatmproduction?mANS:mmmResistancemhea
ting
Shortmcircuit
Groundmfault
PartingmArc
Excessivemcurrent
mQUIZ:mmWhatmismthemdifferencembetweenmandmarcmandmamspark?mANS:mmmSparksmaremthro
wnmmetalmparticles
Arcsmarembriefmdischargesmofmelectricity
m QUIZ:mmWhatmismarcmtracking?mANS:mmmArcmfollowingmsalts,mdusts,mormliquidsmalongmampath
.
m QUIZ:mmWhatmismarcmmapping?mANS:mmmMappingmoutmofmelectricalmdamageminmamcircuit.
mQUIZ:mmWhatmismstaticmelectricity?mANS:mmmAmstationarymchargemcausedmbymmovementmofm
onemobjectmagainstmanother.mLightingmismamstaticmdisharge.
mQUIZ:mmWhatmaremthemfivemconditionsmnessecerymformStaticmArcmIgnition?mANS:mmmAmMean
smofmstaticmgeneration
Ammeansmofmaccumulatingmandmmaintainingmthemcharge
Amstaticmdischargemwithmsufficientmenergy
Amfuelmsource
m m
IsmNFPAm921mamguidemormamstandard?mANS:mmmItmismthemGuidemformFiremandmExplosionmInv
estigations
mQUIZ:mmWhatmaremthemsixmstepsmofmthemscientificmmethod?mANS:mmmRecognizemthemneed
Definemthemproblem
Collectmthemdata
Analyzemthemdata
Developmamhypothesis
Testmthemhypothesis
mQUIZ:mmWhatmstepmofmthemscientificmmethodmisminductivemreasoning?mANS:mmmAnalyzemthe
mdata
mQUIZ:mmWhatmstepmofmthemscientificmmethodmismdeductivemreasoning?mANS:mmmTestmthemhy
pothesis
QUIZ:mmWhatmaremthemfourmpartsmofmthemfiremtetrahedron?mANS:mmmFuelm(reducingmagent)
m
Heat
Oxidizingmagent
Uninhibitedmchemicalmchainmreaction
mQUIZ:mmWhatmkindmofmreactionmabsorbsmenergy,manmendothermicmormanmexothermicmreacti
on?mANS:mmmEndothermic
m QUIZ:mmWhatmismheatmtransfermbymdirectmcontactmcalled?mANS:mmmConduction
m QUIZ:mmWhatmismheatmtransfermbymgasmflowm/mairmmovementmcalled?mANS:mmmConvection
m QUIZ:mmWhatmismheatmtransfermbymmicrowavemenergymcalled?mANS:mmmRadiation
QUIZ:mmWhatmismamfuelmcontrolledmfire?mANS:mmmAmfiremthatmismlimitedmbymthemamountmofmco
m
mbustibles.
mQUIZ:mmWhatmismamventilationmcontrolledmfire?mANS:mmmAmfiremthatmismlimitedmbymthemamoun
tmofmoxygen.
mQUIZ:mmWhatmaremthemstagesmofmfiremgrowth?mANS:mmmIgnition
Growth
Flashover
FullymDeveloped
Decay
mQUIZ:mmWhatmismamflashover?mANS:mmmThemtransitionmphasemfrommgrowthmtomfullymdevelop
ed,mwheremallmsurfacesmreachmignitionmtemperaturemalmostmsimultaneously.
,mQUIZ:mmWhatmismignitionmofmthemundersidemofmthemhotmgasmlayermcalled?mANS:mmmFlameov
ermormrollover
mQUIZ:mmWhatmfactorsminfluencemflashovermconditions?mANS:mmmSizemofmthemcompartment
Heightmofmceiling
Ventilation
Amountmofmfuel
Layoutmofmfuel
Locationmofmfireminmthemcompartment
mQUIZ:mmWhatmaremfirempatterns?mANS:mmmThemphysicalmmanifestationmofmthemaffectsmofmfire
monmmaterials.
mQUIZ:mmWhatmaremthemdifferentmtypesmofmfirempatternsmonmthemwallsmandmceiling?mANS:mmm
PlumemGeneratedmpatternsm(oftenmVmshaped)
Ventilationmgeneratedmpatterns
Hotmgasmlayermpatternsm(Linemofmdemarcation)
mQUIZ:mmWhatmismspalling?mANS:mmmThemseparationmofmchunksmofmconcretemwithmexplosivem
forcemcausedmbymthemexpansionmofmwaterm(moisture)mtrappedminmthemconcretemasmitmturnsmt
omsteam
m QUIZ:mmWhatmismchar?mANS:mmmPyrolizedmcarbonaceousmmaterial
mQUIZ:mmWhatmismoxidation?mANS:mmmPhysicalmchangeminmappearancemofmammaterialmresulti
ngmfrommthemcombinationmofmoxygen.
mQUIZ:mmWhatmismalloying?mANS:mmmMixingmtwommetalsmheatedmthenmcooledmtomchangemthei
rmproperties.mOftenmmeltsmatmamlowermtemperature.
mQUIZ:mmWhatmismamcleanmburn?mANS:mmmWhenmtheremwasmenoughmheatmtomburnmawaymallm
carbonmdepositsm(soot)monmamsurfacemleavingmam"clean"msurface.mOccursmonmnon-
combustiblemsurfaces.
mQUIZ:mmWhatmismsoot?mANS:mmmElementalmcarbonmproducedmduringmincompletemcombusti
on.
mQUIZ:mmWhatmismcalcination?mANS:mmmWhenmchemicallymboundmwatermismdrivenmoutmofmgy
psummwallsmbymthemheatmofmthemfire.
mQUIZ:mmDoesmam25mWattmlightmbulbmexpandmtowardsmthemfiremormpullminwardmawaymfrommit
?mANS:mmmBulbsm25mwattsmormlessmpullmaway.mBulbsmgreatermthanm25mwattsmwillmexpandmto
wardsmthemfire.
,mQUIZ:mmWhatmcausesmheatmshadowing?mANS:mmmAnmobjectmblockingmthemtravelmofmradiate
dmheat.
mQUIZ:mmWhatmismamdeadmload?mANS:mmmThemweightmofmthingsmattachedmtomthembuilding,mlik
emflooring,mcloumns,mandmroofmcoverings.
m QUIZ:mmWhatmismamlivemload?mANS:mmmAmloadmthatmcanmmove,mlikempeople,mfurniture,mwind,
m water,mandmsnow.
mQUIZ:mmWhatmismcompartmentation?mANS:mmmDesignmfeaturesmofmambuildingmthatmlimitmfirem
growthmtomthemroommofmorigin.
mQUIZ:mmWhatmaremthemfivembuildingmconstructionmtypes?mANS:mmmTypemIm-mFiremresistant
TypemIIm-mNonmcombustible
TypemIIIm-mOrdinary
TypemIVm-mHeavymtimber
TypemVm-mWoodmframe
mQUIZ:mmWhatmismordinarymconstruction?mANS:mmmExteriormwallsmaremmasonrymandmframemi
smwood.
mQUIZ:mmWhatmismwoodmframemconstruction?mANS:mmmLightweightmwoodmconstruction,muse
dminmapartments,mhouses.
m QUIZ:mmWhatmismplatformmframemconstruction?mANS:mmmEachmfloormismamseperatemplatform
.
mQUIZ:mmWhatmismballoonmframemconstruction?mANS:mmmThemwallmstudsmextendmfrommthemfo
undationmtomthemroof.
mQUIZ:mmWhatmismOhm'smLaw?mANS:mmmV=IR
(Em=mImxmR)
m QUIZ:mmWhatmismvoltage?mANS:mmmPressure
m QUIZ:mmWhatmismcurrent?mANS:mmmFlow
m QUIZ:mmWhatmismresistance?mANS:mmmFriction,moppositionmtomthemflow
m QUIZ:mmWhatmismanmoverload?mANS:mmmPowermneedsmexceedmthemcircuit'smcapacity.
QUIZ:mmAlternatingmCurrentmVSmDirectmCurrentmANS:mmmAlternatingmcurrentm-
m
themelectronsmflowmoutmfrommthemsourcemandmthenmbackmtomit,malternatingmdirections.
m
Directmcurrentm-melectronsmflowmonemway.
, mQUIZ:mmSinglemPhasemservicemANS:mmmResidential.mThreemconductors:mTwominsulatedmco
nductorsmatm120mVmeach,mandmambaremgroundmwire.
mQUIZ:mmThreemphasemsystemmANS:mmmCommercial.mFourmconductors:mThreeminsulatedmco
nductorsm(480,m240,morm208mV),mandmambaremgroundmwire.
mQUIZ:mmWhatmismthemdifferencembetweenmgroundingmandmbonding?mANS:mmmGroundingmco
nnectsmthemsystemmtomthemearthm(ground).mBondingmconnectsmtomsystemsmtogethermsomthe
mchargemstaysmthemsamembetweenmthem.
mQUIZ:mmWhatmismovercurrentmprotection?mANS:mmmAmdevicemthatmprotectsmthemsystemmfrom
mexcessmcurrent.mIncludes:
Circuitmbreakers
Plugmfuses
TypemSmfuses
Timemdelaymfuses
Cartridgemfuses
QUIZ:mmWhatmaremthemcolorsmofmresidentialmwires?mANS:mmmHotm-mblackmormred
m
Neutralm-mgraymormwhite
Groundm-mbaremormgreen
mQUIZ:mmWhatmaremsomemmethodsmofmelectricalmheatmproduction?mANS:mmmResistancemhea
ting
Shortmcircuit
Groundmfault
PartingmArc
Excessivemcurrent
mQUIZ:mmWhatmismthemdifferencembetweenmandmarcmandmamspark?mANS:mmmSparksmaremthro
wnmmetalmparticles
Arcsmarembriefmdischargesmofmelectricity
m QUIZ:mmWhatmismarcmtracking?mANS:mmmArcmfollowingmsalts,mdusts,mormliquidsmalongmampath
.
m QUIZ:mmWhatmismarcmmapping?mANS:mmmMappingmoutmofmelectricalmdamageminmamcircuit.
mQUIZ:mmWhatmismstaticmelectricity?mANS:mmmAmstationarymchargemcausedmbymmovementmofm
onemobjectmagainstmanother.mLightingmismamstaticmdisharge.
mQUIZ:mmWhatmaremthemfivemconditionsmnessecerymformStaticmArcmIgnition?mANS:mmmAmMean
smofmstaticmgeneration
Ammeansmofmaccumulatingmandmmaintainingmthemcharge
Amstaticmdischargemwithmsufficientmenergy
Amfuelmsource
