FIRE INVESTIGATOR COMPREHENSIVE EXAM 2025/2026
QUESTIONS WITH ANSWERS RATED A+
✔✔A method to identify hazardous materials is :
A. observing smoke color .
B. noting placards and labels .
C. observing vapor clouds .
D. hearing reports from bystanders . - ✔✔Answer: B
✔✔Static electricity is :
A. a stationary charge that builds upon some objects .
B. luminous particle that can be formed when an arc melts metal and spatters particles
away from the point of arcing .
C. a brief discharge that occurs as an energized electrical path is opened while current
is flowing .
D. a high temperature luminous electric discharge across a gap or through a medium . -
✔✔Answer: A
✔✔The presence of a thick , oily soot on glass , including hydrocarbon residues is proof
of the presence of :
A. complete conduction .
B. incomplete combustion .
C. arson .
D. an accidental fire . - ✔✔Answer: B
✔✔The preliminary scene assessment of how a fire spreads through a structure is
developed by noting the areas of :
A. excess water to the least water damage .
B. higher fire damage to less fire damage .
C. lesser destruction to greater destruction .
D. interior fire spread to the exterior . - ✔✔Answer: C
✔✔Gases with vapor density of less than one will :
A. rise and not concentrate at the high point of confinement .
B. rise and concentrate at the high points of confinement .
C. settle and not concentrate at the lowest level .
D. settle and concentrate at the lowest level . - ✔✔Answer: B
✔✔The minimum temperature to which a fuel in a normal atmosphere must be heated
to start self - sustained combustion independent of an ignition source is :
A. oxidation process .
B. ignition temperature .
C. fire / burning point .
D. flash point . - ✔✔Answer: B
,✔✔Heat can travel throughout a burning building by one or more of three methods :
A. conduction , radiation , and convection .
B. extension , conduction , and direct flame contact .
C. convection , expansion , and direct flame contact .
D. radiation , expansion , and direct flame contact - ✔✔Answer: A
✔✔Fire protection of steel is accomplished by :
A. encasing steel in a structure or material such as concrete .
B. the use of suspended ceilings .
C. providing protection for exterior box columns by filling them with water .
D. painting with a latex based paint . - ✔✔Answer: A
✔✔A sawtooth roof is a :
A. two - sided roof with a double slope on each side .
B. curve - shaped roof .
C. series of single pitched roofs .
D. hip roof having two slopes on each side . - ✔✔Answer: C
✔✔Type Il construction is :
A. the structural elements are entirely of noncombustible or limited combustible material
.
B. structural members ( i.e. , columns , beams , arches , floors , and roofs ) are basically
of heavy timber , unprotected wood with large cross sectional areas .
C. structural members are noncombustible and have a fire resistance .
D. all or part of the interior structural elements may be of combustible materials and
exterior walls are required to be noncombustible or limited combustible . - ✔✔Answer: A
✔✔Type III construction :
A. structural members are entirely of wood .
B. structural members ( i.e. , columns , beams , arches , floors , and roofs ) are basically
of heavy timber , unprotected wood with large cross sectional areas .
C. structural members are noncombustible and have a fire resistance .
D. all or part of the interior structural elements may be of combustible materials and
exterior walls are required to be noncombustible or limited combustible . - ✔✔Answer: D
✔✔An appliance is thought to be the cause of a fire , which action should you first
perform ?
A. Read the manufacturer's instructions for the appliance usage .
B. Document the position of controls and manufacturers serial number .
C. Move the appliance outside for closer examination .
D. Disassemble and examine the appliance . - ✔✔Answer: B
✔✔The Mansard roof is a :
, A. series of single pitched roofs .
B. curve - shaped roof .
C. hip roof having two slopes on each side .
D. two - sided roof with a double slope on each side . - ✔✔Answer: C
✔✔An appliance is thought to be the cause of a fire spread to involve the other contents
of the room you should :
A. review the manufacturer's instructions for the appliance usage .
B. document its characteristics and safety guidelines .
C. determine the fire pattern and location of the appliance in the area of origin .
D. video the entire area and attempt to disassemble the appliance . - ✔✔Answer: C
✔✔Wood frame construction classification is :
A. Type I.
B. Type II .
C. Type IV .
D. Type V. - ✔✔Answer: D
✔✔Fire resistive construction classification is :
A. Type I.
B. Type II .
C. Type IV .
D. Type V. - ✔✔Answer: A
✔✔The butterfly roof :
A. slopes in only one direction .
B. slopes in four directions .
C. pitches down in two directions from a high point .
D. is two shed roofs that meet at their low points . - ✔✔Answer: D
✔✔In building construction a repeated load is :
A. loads that are applied intermittently .
B. forces that are crushing .
C. forces that tend to pull .
D. forces tend to slide past one another . - ✔✔Answer: A
✔✔The shed roof is described as :
A. sloping in four directions .
B. two shed roofs that meet at their low points .
C. pitched down in two directions from a high point .
D. a roof that slopes in only one direction . - ✔✔Answer: D
✔✔Compared to other incidents , hazardous materials incidents have :
A. the same level of risk .
QUESTIONS WITH ANSWERS RATED A+
✔✔A method to identify hazardous materials is :
A. observing smoke color .
B. noting placards and labels .
C. observing vapor clouds .
D. hearing reports from bystanders . - ✔✔Answer: B
✔✔Static electricity is :
A. a stationary charge that builds upon some objects .
B. luminous particle that can be formed when an arc melts metal and spatters particles
away from the point of arcing .
C. a brief discharge that occurs as an energized electrical path is opened while current
is flowing .
D. a high temperature luminous electric discharge across a gap or through a medium . -
✔✔Answer: A
✔✔The presence of a thick , oily soot on glass , including hydrocarbon residues is proof
of the presence of :
A. complete conduction .
B. incomplete combustion .
C. arson .
D. an accidental fire . - ✔✔Answer: B
✔✔The preliminary scene assessment of how a fire spreads through a structure is
developed by noting the areas of :
A. excess water to the least water damage .
B. higher fire damage to less fire damage .
C. lesser destruction to greater destruction .
D. interior fire spread to the exterior . - ✔✔Answer: C
✔✔Gases with vapor density of less than one will :
A. rise and not concentrate at the high point of confinement .
B. rise and concentrate at the high points of confinement .
C. settle and not concentrate at the lowest level .
D. settle and concentrate at the lowest level . - ✔✔Answer: B
✔✔The minimum temperature to which a fuel in a normal atmosphere must be heated
to start self - sustained combustion independent of an ignition source is :
A. oxidation process .
B. ignition temperature .
C. fire / burning point .
D. flash point . - ✔✔Answer: B
,✔✔Heat can travel throughout a burning building by one or more of three methods :
A. conduction , radiation , and convection .
B. extension , conduction , and direct flame contact .
C. convection , expansion , and direct flame contact .
D. radiation , expansion , and direct flame contact - ✔✔Answer: A
✔✔Fire protection of steel is accomplished by :
A. encasing steel in a structure or material such as concrete .
B. the use of suspended ceilings .
C. providing protection for exterior box columns by filling them with water .
D. painting with a latex based paint . - ✔✔Answer: A
✔✔A sawtooth roof is a :
A. two - sided roof with a double slope on each side .
B. curve - shaped roof .
C. series of single pitched roofs .
D. hip roof having two slopes on each side . - ✔✔Answer: C
✔✔Type Il construction is :
A. the structural elements are entirely of noncombustible or limited combustible material
.
B. structural members ( i.e. , columns , beams , arches , floors , and roofs ) are basically
of heavy timber , unprotected wood with large cross sectional areas .
C. structural members are noncombustible and have a fire resistance .
D. all or part of the interior structural elements may be of combustible materials and
exterior walls are required to be noncombustible or limited combustible . - ✔✔Answer: A
✔✔Type III construction :
A. structural members are entirely of wood .
B. structural members ( i.e. , columns , beams , arches , floors , and roofs ) are basically
of heavy timber , unprotected wood with large cross sectional areas .
C. structural members are noncombustible and have a fire resistance .
D. all or part of the interior structural elements may be of combustible materials and
exterior walls are required to be noncombustible or limited combustible . - ✔✔Answer: D
✔✔An appliance is thought to be the cause of a fire , which action should you first
perform ?
A. Read the manufacturer's instructions for the appliance usage .
B. Document the position of controls and manufacturers serial number .
C. Move the appliance outside for closer examination .
D. Disassemble and examine the appliance . - ✔✔Answer: B
✔✔The Mansard roof is a :
, A. series of single pitched roofs .
B. curve - shaped roof .
C. hip roof having two slopes on each side .
D. two - sided roof with a double slope on each side . - ✔✔Answer: C
✔✔An appliance is thought to be the cause of a fire spread to involve the other contents
of the room you should :
A. review the manufacturer's instructions for the appliance usage .
B. document its characteristics and safety guidelines .
C. determine the fire pattern and location of the appliance in the area of origin .
D. video the entire area and attempt to disassemble the appliance . - ✔✔Answer: C
✔✔Wood frame construction classification is :
A. Type I.
B. Type II .
C. Type IV .
D. Type V. - ✔✔Answer: D
✔✔Fire resistive construction classification is :
A. Type I.
B. Type II .
C. Type IV .
D. Type V. - ✔✔Answer: A
✔✔The butterfly roof :
A. slopes in only one direction .
B. slopes in four directions .
C. pitches down in two directions from a high point .
D. is two shed roofs that meet at their low points . - ✔✔Answer: D
✔✔In building construction a repeated load is :
A. loads that are applied intermittently .
B. forces that are crushing .
C. forces that tend to pull .
D. forces tend to slide past one another . - ✔✔Answer: A
✔✔The shed roof is described as :
A. sloping in four directions .
B. two shed roofs that meet at their low points .
C. pitched down in two directions from a high point .
D. a roof that slopes in only one direction . - ✔✔Answer: D
✔✔Compared to other incidents , hazardous materials incidents have :
A. the same level of risk .
