IAAI CFI STUDY COMPREHENSIVE TEST PAPER
2026 COMPLETE QUESTIONS AND ANSWERS
EXPERT VERIFIED GRADED A+
◉ Differential. Answer: All voltages are ___________________, which
means that a battery or DC generator creates a potential difference
that can force charge through a wire.
◉ Diffusion Flame Burning. Answer: The ordinary sustained burning
mode in most fires.
◉ Document and Carefully Move. Answer: By taking these two steps,
an investigator can obtain the manufacturer's name, model & serial
numbers, manufacture date, and any warnings on an appliance,
determined to be in the area of fire origin.
◉ Documentary Evidence. Answer: What type of evidence is an
investigator's report?
◉ DOT Standards. Answer: The standards that gas cylinders must
conform to (Dept. of Transportation)
,◉ Dual Element Fuses. Answer: Types of fuses that have one
element for overloads and another element for short circuits
◉ Dust Explosion. Answer: An explosion that most often occurs in
confined areas of relatively wide dispersal, where combustible dust
can accumulate in sufficient quantity to support a propagating
reaction.
◉ Engine Oil Analysis. Answer: This analysis may be performed to
determine the pre-fire condition of the engine and to establish
possible motive for the destruction of the vehicle.
◉ Evidence Collection. Answer: The process of photographing an
item, then collecting, tagging and putting it in a log
◉ Evidence Collection and Documentation. Answer: The importance
of this fire investigative practice is no different in wildfire
investigations, compared to structural fires.
◉ Evidence Custodian. Answer: The person at a fire scene who
manages various aspects of the evidence collection process,
including an evidence log and evidence bagging, tagging,
preservation and storage
,◉ Exigent Circumstances. Answer: The justification used to enter a
property in order to extinguish a fire
◉ Final Hypothesis. Answer: "Conclusions"
◉ Fire Death Team. Answer: A team comprised of a homicide
detective, medical examiner, and fire investigator
◉ Fire Dynamics Analysis. Answer: A type of analysis used to predict
fire phenomena and characteristics of the environment
◉ Fire Effects. Answer: Observable or measurable changes in or on a
material as the result of a fire
◉ Fire Growth Rate. Answer: Once a fuel is ignited in a motor
vehicle, any additional fuels contained in the vehicle have significant
effect on fire intensity.
◉ Fire Intensity. Answer: In a wildland fire, this fire characteristic is
indicated by the degree of damage to the wildland fuel
◉ Fire Origin. Answer: This investigative determination is based on
witness information, fire patterns, arc mapping, and fire dynamics
, ◉ Fire Scene Access. Answer: The fifth and sixth amendments DO
NOT answer questions regarding constitutional protections in
relation to fire investigation aspect (4th amendment issue)
◉ Fire Scene Reconstruction. Answer: Recreating pre-fire positions
of contents
◉ Fire-rated Door. Answer: This type of door must be used when
installed in a fire-rated wall.
◉ First or Second Degree Burns. Answer: This is the typical extent of
thermal injuries sustained from an explosion flame front, due to the
very short duration.
◉ Flame Spread Rating. Answer: A system used to rate a material's
flame spread potential.
◉ Class A: Flame spread index. Answer: 0-25
◉ Class B: Flame spread index. Answer: 26-75
◉ Class C: Flame spread index. Answer: 76-200
2026 COMPLETE QUESTIONS AND ANSWERS
EXPERT VERIFIED GRADED A+
◉ Differential. Answer: All voltages are ___________________, which
means that a battery or DC generator creates a potential difference
that can force charge through a wire.
◉ Diffusion Flame Burning. Answer: The ordinary sustained burning
mode in most fires.
◉ Document and Carefully Move. Answer: By taking these two steps,
an investigator can obtain the manufacturer's name, model & serial
numbers, manufacture date, and any warnings on an appliance,
determined to be in the area of fire origin.
◉ Documentary Evidence. Answer: What type of evidence is an
investigator's report?
◉ DOT Standards. Answer: The standards that gas cylinders must
conform to (Dept. of Transportation)
,◉ Dual Element Fuses. Answer: Types of fuses that have one
element for overloads and another element for short circuits
◉ Dust Explosion. Answer: An explosion that most often occurs in
confined areas of relatively wide dispersal, where combustible dust
can accumulate in sufficient quantity to support a propagating
reaction.
◉ Engine Oil Analysis. Answer: This analysis may be performed to
determine the pre-fire condition of the engine and to establish
possible motive for the destruction of the vehicle.
◉ Evidence Collection. Answer: The process of photographing an
item, then collecting, tagging and putting it in a log
◉ Evidence Collection and Documentation. Answer: The importance
of this fire investigative practice is no different in wildfire
investigations, compared to structural fires.
◉ Evidence Custodian. Answer: The person at a fire scene who
manages various aspects of the evidence collection process,
including an evidence log and evidence bagging, tagging,
preservation and storage
,◉ Exigent Circumstances. Answer: The justification used to enter a
property in order to extinguish a fire
◉ Final Hypothesis. Answer: "Conclusions"
◉ Fire Death Team. Answer: A team comprised of a homicide
detective, medical examiner, and fire investigator
◉ Fire Dynamics Analysis. Answer: A type of analysis used to predict
fire phenomena and characteristics of the environment
◉ Fire Effects. Answer: Observable or measurable changes in or on a
material as the result of a fire
◉ Fire Growth Rate. Answer: Once a fuel is ignited in a motor
vehicle, any additional fuels contained in the vehicle have significant
effect on fire intensity.
◉ Fire Intensity. Answer: In a wildland fire, this fire characteristic is
indicated by the degree of damage to the wildland fuel
◉ Fire Origin. Answer: This investigative determination is based on
witness information, fire patterns, arc mapping, and fire dynamics
, ◉ Fire Scene Access. Answer: The fifth and sixth amendments DO
NOT answer questions regarding constitutional protections in
relation to fire investigation aspect (4th amendment issue)
◉ Fire Scene Reconstruction. Answer: Recreating pre-fire positions
of contents
◉ Fire-rated Door. Answer: This type of door must be used when
installed in a fire-rated wall.
◉ First or Second Degree Burns. Answer: This is the typical extent of
thermal injuries sustained from an explosion flame front, due to the
very short duration.
◉ Flame Spread Rating. Answer: A system used to rate a material's
flame spread potential.
◉ Class A: Flame spread index. Answer: 0-25
◉ Class B: Flame spread index. Answer: 26-75
◉ Class C: Flame spread index. Answer: 76-200
