Fire Investigator- Masterfor TCFP Full Test Bank TCFP Possible
Questions and Answer s||Updated 2025/2026 .
Is NFPA 921a guideor a standard?✔✔ It is theGuide for Fire and Explosion Investigations
What arethesix stepsof thescientificmethod?✔✔ RecognizetheneedDefine the
problem
Collect the dataAnalyze
the dataDevelopa
hypothesisTest the
hypothesis
✔✔ Analyze the dataWhat stepof the
What step of the scientific method is inductive reasoning?
scientificmethodis deductivereasoning?✔✔ Test thehypothesisWhat are the four parts of the fire
tetrahedron?✔✔ Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibitedchemicalchainreaction
What kind of reactionabsorbsenergy,an endothermicor an exothermicreaction?✔✔
Endothermic
What is heattransferby directcontactcalled?✔✔ Conduction
What is heattransferby gas flow/ air movementcalled?✔✔ ConvectionWhat is heat
✔✔ Radiation
transfer by microwave energy called?
✔✔ A fire that is limited bythe amount of combustibles.
What is a fuel controlled fire? What is a
ventilationcontrolledfire? ✔✔ A fire thatis limitedby theamountof oxygen.
What arethestagesof fire growth?✔✔ Ignition Growth
Flashover
Fully DevelopedDecay
What is a flashover?✔✔ The transitionphasefrom growthto fully developed,whereall surfaces reach
ignition temperature almost simultaneously.
,What is ignition of theundersideof thehot gas layercalled?✔✔ Flameoveror rollover
What factorsinfluenceflashoverconditions?✔✔ Size of thecompartmentHeight of
ceiling
VentilationAmount
of fuel Layout of fuel
Locationof fire in thecompartment
What arefire patterns?✔✔ The physicalmanifestationof theaffectsof fire on materials.
What arethedifferenttypesof fire patternson thewallsand ceiling? ✔✔ Plume Generated patterns
(often V shaped)
Ventilationgeneratedpatterns
Hot gas layerpatterns(Line of demarcation)
What is spalling?✔✔ The separationof chunks of concretewith explosiveforcecausedby the expansion
of water (moisture) trapped in the concrete as it turns to steam
What is char? ✔✔ Pyrolizedcarbonaceousmaterial
What is oxidation?✔✔ Physicalchangein appearanceof a materialresultingfrom thecombination of
oxygen.
What is alloying?✔✔ Mixing twometalsheatedthencooledto changetheirproperties.Often melts at a
lower temperature.
What is a clean burn?✔✔ When there was enough heat to burn away all carbon
deposits(soot)on a
surfaceleavinga "clean"surface.Occurs on non-combustiblesurfaces.
What is soot?✔✔ Elementalcarbonproducedduring incompletecombustion.
What is calcination?✔✔ When chemicallyboundwateris driven out of gypsumwallsby the heat of the
fire.
Does a 25 Wattlight bulb expandtowardsthefire or pull inwardawayfrom it? ✔✔ Bulbs 25 watts or less
pull away. Bulbs greater than 25 watts will expand towards the fire.
What causesheatshadowing?✔✔ An objectblocking thetravelof radiatedheat.
What is a deadload?✔✔ The weightof thingsattachedto thebuilding,like flooring,cloumns, and roof
,coverings.
, What is a live load? ✔✔ A load thatcan move,like people,furniture,wind, water,and snow.
What is compartmentation?✔✔ Design featuresof a building thatlimit fire growthto theroom of
origin.
What arethefive building constructiontypes?✔✔ Type I - Fire resistantType II - Non
combustible
Type III - Ordinary Type
IV - Heavy timberType V -
Wood frame
What is ordinaryconstruction?✔✔ Exterior wallsaremasonryand frameis wood.
What is woodframeconstruction?✔✔ Lightweightwoodconstruction, usedin apartments, houses.
What is platformframeconstruction?✔✔ Each floor is a seperateplatform.
What is balloonframeconstruction?✔✔ The wall studsextendfrom thefoundationto the roof.
Whatis Ohm'sLaw? ✔✔ V=IR (E = I
x R)
Whatis voltage?✔✔ PressureWhat
is current?✔✔ Flow
What is resistance?✔✔ Friction, oppositionto theflow
What is an overload?✔✔ Powerneedsexceedthecircuit'scapacity.
AlternatingCurrent VS Direct Current ✔✔ Alternatingcurrent- theelectronsflowout from the
source and then back to it, alternating directions.
Direct current- electronsflow oneway.
Single Phaseservice✔✔ Residential.Three conductors:Two insulatedconductorsat 120 V each, and a
bare ground wire.
Three phasesystem✔✔ Commercial.Four conductors:Three insulatedconductors(480, 240, or
208 V), and a bare ground wire.
Questions and Answer s||Updated 2025/2026 .
Is NFPA 921a guideor a standard?✔✔ It is theGuide for Fire and Explosion Investigations
What arethesix stepsof thescientificmethod?✔✔ RecognizetheneedDefine the
problem
Collect the dataAnalyze
the dataDevelopa
hypothesisTest the
hypothesis
✔✔ Analyze the dataWhat stepof the
What step of the scientific method is inductive reasoning?
scientificmethodis deductivereasoning?✔✔ Test thehypothesisWhat are the four parts of the fire
tetrahedron?✔✔ Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibitedchemicalchainreaction
What kind of reactionabsorbsenergy,an endothermicor an exothermicreaction?✔✔
Endothermic
What is heattransferby directcontactcalled?✔✔ Conduction
What is heattransferby gas flow/ air movementcalled?✔✔ ConvectionWhat is heat
✔✔ Radiation
transfer by microwave energy called?
✔✔ A fire that is limited bythe amount of combustibles.
What is a fuel controlled fire? What is a
ventilationcontrolledfire? ✔✔ A fire thatis limitedby theamountof oxygen.
What arethestagesof fire growth?✔✔ Ignition Growth
Flashover
Fully DevelopedDecay
What is a flashover?✔✔ The transitionphasefrom growthto fully developed,whereall surfaces reach
ignition temperature almost simultaneously.
,What is ignition of theundersideof thehot gas layercalled?✔✔ Flameoveror rollover
What factorsinfluenceflashoverconditions?✔✔ Size of thecompartmentHeight of
ceiling
VentilationAmount
of fuel Layout of fuel
Locationof fire in thecompartment
What arefire patterns?✔✔ The physicalmanifestationof theaffectsof fire on materials.
What arethedifferenttypesof fire patternson thewallsand ceiling? ✔✔ Plume Generated patterns
(often V shaped)
Ventilationgeneratedpatterns
Hot gas layerpatterns(Line of demarcation)
What is spalling?✔✔ The separationof chunks of concretewith explosiveforcecausedby the expansion
of water (moisture) trapped in the concrete as it turns to steam
What is char? ✔✔ Pyrolizedcarbonaceousmaterial
What is oxidation?✔✔ Physicalchangein appearanceof a materialresultingfrom thecombination of
oxygen.
What is alloying?✔✔ Mixing twometalsheatedthencooledto changetheirproperties.Often melts at a
lower temperature.
What is a clean burn?✔✔ When there was enough heat to burn away all carbon
deposits(soot)on a
surfaceleavinga "clean"surface.Occurs on non-combustiblesurfaces.
What is soot?✔✔ Elementalcarbonproducedduring incompletecombustion.
What is calcination?✔✔ When chemicallyboundwateris driven out of gypsumwallsby the heat of the
fire.
Does a 25 Wattlight bulb expandtowardsthefire or pull inwardawayfrom it? ✔✔ Bulbs 25 watts or less
pull away. Bulbs greater than 25 watts will expand towards the fire.
What causesheatshadowing?✔✔ An objectblocking thetravelof radiatedheat.
What is a deadload?✔✔ The weightof thingsattachedto thebuilding,like flooring,cloumns, and roof
,coverings.
, What is a live load? ✔✔ A load thatcan move,like people,furniture,wind, water,and snow.
What is compartmentation?✔✔ Design featuresof a building thatlimit fire growthto theroom of
origin.
What arethefive building constructiontypes?✔✔ Type I - Fire resistantType II - Non
combustible
Type III - Ordinary Type
IV - Heavy timberType V -
Wood frame
What is ordinaryconstruction?✔✔ Exterior wallsaremasonryand frameis wood.
What is woodframeconstruction?✔✔ Lightweightwoodconstruction, usedin apartments, houses.
What is platformframeconstruction?✔✔ Each floor is a seperateplatform.
What is balloonframeconstruction?✔✔ The wall studsextendfrom thefoundationto the roof.
Whatis Ohm'sLaw? ✔✔ V=IR (E = I
x R)
Whatis voltage?✔✔ PressureWhat
is current?✔✔ Flow
What is resistance?✔✔ Friction, oppositionto theflow
What is an overload?✔✔ Powerneedsexceedthecircuit'scapacity.
AlternatingCurrent VS Direct Current ✔✔ Alternatingcurrent- theelectronsflowout from the
source and then back to it, alternating directions.
Direct current- electronsflow oneway.
Single Phaseservice✔✔ Residential.Three conductors:Two insulatedconductorsat 120 V each, and a
bare ground wire.
Three phasesystem✔✔ Commercial.Four conductors:Three insulatedconductors(480, 240, or
208 V), and a bare ground wire.
