TCFP FIRE INVESTIGATOR EXAM ACTUAL EXAM 100
g g g g g g g
QUESTIONS AND CORRECT DETAILED ANSWERS (100
g g g g g
% VERIFIED ANSWERS) |A+GRADE.
g g g
IsgNFPAg921gagguidegorgagstandard?g-
gANSWER>>>ItgisgthegGuidegforgFiregandgExplosiongInvestigations
Whatgaregthegsixgstepsgofgthegscientificgmethod?g-
gANSWER>>>RecognizegthegneedgDefinegthegproblem
CollectgthegdatagAnaly
zegthegdatagDevelopgag
hypothesisgTestgtheghy
pothesis
Whatgstepgofgthegscientificgmethodgisginductivegreasoning?g-
gANSWER>>>Analyzegthegdata
Whatgstepgofgthegscientificgmethodgisgdeductivegreasoning?g-
gANSWER>>>Testgtheghypothesis
Whatgaregthegfourgpartsgofgthegfiregtetrahedron?g-
gANSWER>>>Fuelg(reducinggagent)gHeat
Oxidizinggagent
Uninhibitedgchemicalgchaingreaction
Whatgkindgofgreactiongabsorbsgenergy,gangendothermicgorgangexothermicgreaction?g-
gANSWER>>>Endothermic
Whatgisgheatgtransfergbygdirectgcontactgcalled?g-gANSWER>>>Conduction
Whatgisgheatgtransfergbyggasgflowg/gairgmovementgcalled?g-gANSWER>>>Convection
Whatgisgheatgtransfergbygmicrowavegenergygcalled?g-gANSWER>>>Radiation
Whatgisgagfuelgcontrolledgfire?g-
gANSWER>>>Agfiregthatgisglimitedgbygthegamountgofgcombustibles.
Whatgisgagventilationgcontrolledgfire?g-
gANSWER>>>Agfiregthatgisglimitedgbygthegamountgofgoxygen.
Whatgaregthegstagesgofgfireggrowth?g-
gANSWER>>>IgnitiongGrowth
Flashover
FullygDeveloped
,Decay
Whatgisgagflashover?g-
gANSWER>>>Thegtransitiongphasegfromggrowthgtogfullygdeveloped,gwheregallgsurfacesg
reachgignitiongtemperaturegalmostgsimultaneously.
Whatgisgignitiongofgthegundersidegofgtheghotggasglayergcalled?g-
gANSWER>>>Flameovergorgrollover
Whatgfactorsginfluencegflashovergconditions?g-
gANSWER>>>SizegofgthegcompartmentgHeightgofgceiling
VentilationgAmou
ntgofgfuelgLayoutg
ofgfuel
Locationgofgfiregingthegcompartment
Whatgaregfiregpatterns?g-
gANSWER>>>Thegphysicalgmanifestationgofgthegaffectsgofgfiregongmaterials.
Whatgaregthegdifferentgtypesgofgfiregpatternsgongthegwallsgandgceiling?g-
gANSWER>>>PlumegGeneratedgpatternsg(oftengVgshaped)
Ventilationggeneratedgpatterns
Hotggasglayergpatternsg(Linegofgdemarcation)
Whatgisgspalling?g-
gANSWER>>>Thegseparationgofgchunksgofgconcretegwithgexplosivegforcegcausedgbygth
egexpansiongofgwaterg(moisture)gtrappedgingthegconcretegasgitgturnsgtogsteam
Whatgisgchar?g-gANSWER>>>Pyrolizedgcarbonaceousgmaterial
Whatgisgoxidation?g-
gANSWER>>>Physicalgchangegingappearancegofgagmaterialgresultinggfromgthegcombinationg
ofgoxygen.
Whatgisgalloying?g-
gANSWER>>>Mixinggtwogmetalsgheatedgthengcooledgtogchangegtheirgproperties.gOften
gmeltsgatgaglowergtemperature.
Whatgisgagcleangburn?g-
gANSWER>>>Whengtheregwasgenoughgheatgtogburngawaygallgcarbongdepositsg(soot)go
ngagsurfacegleavinggag"clean"gsurface.gOccursgongnon-gcombustiblegsurfaces.
Whatgisgsoot?g-
gANSWER>>>Elementalgcarbongproducedgduringgincompletegcombustion.
Whatgisgcalcination?g-
gANSWER>>>Whengchemicallygboundgwatergisgdrivengoutgofggypsumgwallsgbygtheghea
tgofgthegfire.
,Doesgag25gWattglightgbulbgexpandgtowardsgthegfiregorgpullginwardgawaygfromgit?g-
gANSWER>>>Bulbsg25gwattsgorglessgpullgaway.gBulbsggreatergthang25gwattsgwillgexpan
dgtowardsgthegfire.
Whatgcausesgheatgshadowing?g-
gANSWER>>>Angobjectgblockinggthegtravelgofgradiatedgheat.
Whatgisgagdeadgload?g-
gANSWER>>>Thegweightgofgthingsgattachedgtogthegbuilding,glikegflooring,gcloumns,gan
dgroofgcoverings.
Whatgisgaglivegload?g-
gANSWER>>>Agloadgthatgcangmove,glikegpeople,gfurniture,gwind,gwater,gandgsnow.
Whatgisgcompartmentation?g-
gANSWER>>>Designgfeaturesgofgagbuildinggthatglimitgfireggrowthgtogthegroomgofgorigin.
Whatgaregthegfivegbuildinggconstructiongtypes?g-gANSWER>>>TypegIg-
gFiregresistantgTypegIIg-gNongcombustible
TypegIIIg-
gOrdinarygTypegIVg-
gHeavygtimbergTypegVg
-gWoodgframe
Whatgisgordinarygconstruction?g-
gANSWER>>>Exteriorgwallsgaregmasonrygandgframegisgwood.
Whatgisgwoodgframegconstruction?g-
gANSWER>>>Lightweightgwoodgconstruction,gusedgingapartments,ghouses.
Whatgisgplatformgframegconstruction?g-gANSWER>>>Eachgfloorgisgagseperategplatform.
Whatgisgballoongframegconstruction?g-
gANSWER>>>Thegwallgstudsgextendgfromgthegfoundationgtogthegroof.
WhatgisgOhm'sgLaw?g-
gANSWER>>>V=IRg(Eg=gIgxgR)
Whatgisgvoltage?g-gANSWER>>>Pressure
Whatgisgcurrent?g-gANSWER>>>Flow
Whatgisgresistance?g-gANSWER>>>Friction,goppositiongtogthegflow
Whatgisgangoverload?g-gANSWER>>>Powergneedsgexceedgthegcircuit'sgcapacity.
AlternatinggCurrentgVSgDirectgCurrentg-gANSWER>>>Alternatinggcurrentg-
gthegelectronsgflowgoutgfromgthegsourcegandgthengbackgtogit,galternatinggdirections.
, Directgcurrentg-gelectronsgflowgonegway.
SinglegPhasegserviceg-
gANSWER>>>Residential.gThreegconductors:gTwoginsulatedgconductorsgatg120gVgeach
,gandgagbareggroundgwire.
Threegphasegsystemg-
gANSWER>>>Commercial.gFourgconductors:gThreeginsulatedgconductorsg(480,g240,gor
g208gV),gandgagbareggroundgwire.
Whatgisgthegdifferencegbetweenggroundinggandgbonding?g-
gANSWER>>>Groundinggconnectsgthegsystemgtogthegearthg(ground).gBondinggconnect
sgtogsystemsgtogethergsogthegchargegstaysgthegsamegbetweengthem.
Whatgisgovercurrentgprotection?g-
gANSWER>>>Agdevicegthatgprotectsgthegsystemgfromgexcessgcurrent.gIncludes:
Circuitgbreakers
gPluggfusesg Ty
pegSgfuses
TimegdelaygfusesgCartr
idgegfuses
Whatgaregthegcolorsgofgresidentialgwires?g-gANSWER>>>Hotg-
gblackgorgredgNeutralg-ggraygorgwhite
Groundg-gbaregorggreen
Whatgaregsomegmethodsgofgelectricalgheatgproduction?g-
gANSWER>>>Resistancegheating
ShortgcircuitgGrou
ndgfaultgPartinggA
rcgExcessivegcurr
ent
Whatgisgthegdifferencegbetweengandgarcgandgagspark?g-
gANSWER>>>Sparksgaregthrowngmetalgparticles
Arcsgaregbriefgdischargesgofgelectricity
Whatgisgarcgtracking?g-gANSWER>>>Arcgfollowinggsalts,gdusts,gorgliquidsgalonggagpath.
Whatgisgarcgmapping?g-gANSWER>>>Mappinggoutgofgelectricalgdamagegingagcircuit.
Whatgisgstaticgelectricity?g-
gANSWER>>>Agstationarygchargegcausedgbygmovementgofgonegobjectgagainstganother.
gLightinggisgagstaticgdisharge.
WhatgaregthegfivegconditionsgnessecerygforgStaticgArcgIgnition?g-
gANSWER>>>AgMeansgofgstaticggeneration
Agmeansgofgaccumulatinggandgmaintaininggthegcharg
egAgstaticgdischargegwithgsufficientgenergy
g g g g g g g
QUESTIONS AND CORRECT DETAILED ANSWERS (100
g g g g g
% VERIFIED ANSWERS) |A+GRADE.
g g g
IsgNFPAg921gagguidegorgagstandard?g-
gANSWER>>>ItgisgthegGuidegforgFiregandgExplosiongInvestigations
Whatgaregthegsixgstepsgofgthegscientificgmethod?g-
gANSWER>>>RecognizegthegneedgDefinegthegproblem
CollectgthegdatagAnaly
zegthegdatagDevelopgag
hypothesisgTestgtheghy
pothesis
Whatgstepgofgthegscientificgmethodgisginductivegreasoning?g-
gANSWER>>>Analyzegthegdata
Whatgstepgofgthegscientificgmethodgisgdeductivegreasoning?g-
gANSWER>>>Testgtheghypothesis
Whatgaregthegfourgpartsgofgthegfiregtetrahedron?g-
gANSWER>>>Fuelg(reducinggagent)gHeat
Oxidizinggagent
Uninhibitedgchemicalgchaingreaction
Whatgkindgofgreactiongabsorbsgenergy,gangendothermicgorgangexothermicgreaction?g-
gANSWER>>>Endothermic
Whatgisgheatgtransfergbygdirectgcontactgcalled?g-gANSWER>>>Conduction
Whatgisgheatgtransfergbyggasgflowg/gairgmovementgcalled?g-gANSWER>>>Convection
Whatgisgheatgtransfergbygmicrowavegenergygcalled?g-gANSWER>>>Radiation
Whatgisgagfuelgcontrolledgfire?g-
gANSWER>>>Agfiregthatgisglimitedgbygthegamountgofgcombustibles.
Whatgisgagventilationgcontrolledgfire?g-
gANSWER>>>Agfiregthatgisglimitedgbygthegamountgofgoxygen.
Whatgaregthegstagesgofgfireggrowth?g-
gANSWER>>>IgnitiongGrowth
Flashover
FullygDeveloped
,Decay
Whatgisgagflashover?g-
gANSWER>>>Thegtransitiongphasegfromggrowthgtogfullygdeveloped,gwheregallgsurfacesg
reachgignitiongtemperaturegalmostgsimultaneously.
Whatgisgignitiongofgthegundersidegofgtheghotggasglayergcalled?g-
gANSWER>>>Flameovergorgrollover
Whatgfactorsginfluencegflashovergconditions?g-
gANSWER>>>SizegofgthegcompartmentgHeightgofgceiling
VentilationgAmou
ntgofgfuelgLayoutg
ofgfuel
Locationgofgfiregingthegcompartment
Whatgaregfiregpatterns?g-
gANSWER>>>Thegphysicalgmanifestationgofgthegaffectsgofgfiregongmaterials.
Whatgaregthegdifferentgtypesgofgfiregpatternsgongthegwallsgandgceiling?g-
gANSWER>>>PlumegGeneratedgpatternsg(oftengVgshaped)
Ventilationggeneratedgpatterns
Hotggasglayergpatternsg(Linegofgdemarcation)
Whatgisgspalling?g-
gANSWER>>>Thegseparationgofgchunksgofgconcretegwithgexplosivegforcegcausedgbygth
egexpansiongofgwaterg(moisture)gtrappedgingthegconcretegasgitgturnsgtogsteam
Whatgisgchar?g-gANSWER>>>Pyrolizedgcarbonaceousgmaterial
Whatgisgoxidation?g-
gANSWER>>>Physicalgchangegingappearancegofgagmaterialgresultinggfromgthegcombinationg
ofgoxygen.
Whatgisgalloying?g-
gANSWER>>>Mixinggtwogmetalsgheatedgthengcooledgtogchangegtheirgproperties.gOften
gmeltsgatgaglowergtemperature.
Whatgisgagcleangburn?g-
gANSWER>>>Whengtheregwasgenoughgheatgtogburngawaygallgcarbongdepositsg(soot)go
ngagsurfacegleavinggag"clean"gsurface.gOccursgongnon-gcombustiblegsurfaces.
Whatgisgsoot?g-
gANSWER>>>Elementalgcarbongproducedgduringgincompletegcombustion.
Whatgisgcalcination?g-
gANSWER>>>Whengchemicallygboundgwatergisgdrivengoutgofggypsumgwallsgbygtheghea
tgofgthegfire.
,Doesgag25gWattglightgbulbgexpandgtowardsgthegfiregorgpullginwardgawaygfromgit?g-
gANSWER>>>Bulbsg25gwattsgorglessgpullgaway.gBulbsggreatergthang25gwattsgwillgexpan
dgtowardsgthegfire.
Whatgcausesgheatgshadowing?g-
gANSWER>>>Angobjectgblockinggthegtravelgofgradiatedgheat.
Whatgisgagdeadgload?g-
gANSWER>>>Thegweightgofgthingsgattachedgtogthegbuilding,glikegflooring,gcloumns,gan
dgroofgcoverings.
Whatgisgaglivegload?g-
gANSWER>>>Agloadgthatgcangmove,glikegpeople,gfurniture,gwind,gwater,gandgsnow.
Whatgisgcompartmentation?g-
gANSWER>>>Designgfeaturesgofgagbuildinggthatglimitgfireggrowthgtogthegroomgofgorigin.
Whatgaregthegfivegbuildinggconstructiongtypes?g-gANSWER>>>TypegIg-
gFiregresistantgTypegIIg-gNongcombustible
TypegIIIg-
gOrdinarygTypegIVg-
gHeavygtimbergTypegVg
-gWoodgframe
Whatgisgordinarygconstruction?g-
gANSWER>>>Exteriorgwallsgaregmasonrygandgframegisgwood.
Whatgisgwoodgframegconstruction?g-
gANSWER>>>Lightweightgwoodgconstruction,gusedgingapartments,ghouses.
Whatgisgplatformgframegconstruction?g-gANSWER>>>Eachgfloorgisgagseperategplatform.
Whatgisgballoongframegconstruction?g-
gANSWER>>>Thegwallgstudsgextendgfromgthegfoundationgtogthegroof.
WhatgisgOhm'sgLaw?g-
gANSWER>>>V=IRg(Eg=gIgxgR)
Whatgisgvoltage?g-gANSWER>>>Pressure
Whatgisgcurrent?g-gANSWER>>>Flow
Whatgisgresistance?g-gANSWER>>>Friction,goppositiongtogthegflow
Whatgisgangoverload?g-gANSWER>>>Powergneedsgexceedgthegcircuit'sgcapacity.
AlternatinggCurrentgVSgDirectgCurrentg-gANSWER>>>Alternatinggcurrentg-
gthegelectronsgflowgoutgfromgthegsourcegandgthengbackgtogit,galternatinggdirections.
, Directgcurrentg-gelectronsgflowgonegway.
SinglegPhasegserviceg-
gANSWER>>>Residential.gThreegconductors:gTwoginsulatedgconductorsgatg120gVgeach
,gandgagbareggroundgwire.
Threegphasegsystemg-
gANSWER>>>Commercial.gFourgconductors:gThreeginsulatedgconductorsg(480,g240,gor
g208gV),gandgagbareggroundgwire.
Whatgisgthegdifferencegbetweenggroundinggandgbonding?g-
gANSWER>>>Groundinggconnectsgthegsystemgtogthegearthg(ground).gBondinggconnect
sgtogsystemsgtogethergsogthegchargegstaysgthegsamegbetweengthem.
Whatgisgovercurrentgprotection?g-
gANSWER>>>Agdevicegthatgprotectsgthegsystemgfromgexcessgcurrent.gIncludes:
Circuitgbreakers
gPluggfusesg Ty
pegSgfuses
TimegdelaygfusesgCartr
idgegfuses
Whatgaregthegcolorsgofgresidentialgwires?g-gANSWER>>>Hotg-
gblackgorgredgNeutralg-ggraygorgwhite
Groundg-gbaregorggreen
Whatgaregsomegmethodsgofgelectricalgheatgproduction?g-
gANSWER>>>Resistancegheating
ShortgcircuitgGrou
ndgfaultgPartinggA
rcgExcessivegcurr
ent
Whatgisgthegdifferencegbetweengandgarcgandgagspark?g-
gANSWER>>>Sparksgaregthrowngmetalgparticles
Arcsgaregbriefgdischargesgofgelectricity
Whatgisgarcgtracking?g-gANSWER>>>Arcgfollowinggsalts,gdusts,gorgliquidsgalonggagpath.
Whatgisgarcgmapping?g-gANSWER>>>Mappinggoutgofgelectricalgdamagegingagcircuit.
Whatgisgstaticgelectricity?g-
gANSWER>>>Agstationarygchargegcausedgbygmovementgofgonegobjectgagainstganother.
gLightinggisgagstaticgdisharge.
WhatgaregthegfivegconditionsgnessecerygforgStaticgArcgIgnition?g-
gANSWER>>>AgMeansgofgstaticggeneration
Agmeansgofgaccumulatinggandgmaintaininggthegcharg
egAgstaticgdischargegwithgsufficientgenergy