IAAI CFI LATEST 2026 EVALUATION TEST QUESTIONS AND
SOLUTIONS RATED A+
stance to the mass of an equal volume of water (at a temp. of 4C)
✔✔Speed of Fire Growth - ✔✔This fire characteristic is NOT indicated by the angle of
the borders of the V pattern
✔✔Spoliation - ✔✔This concept does NOT mean that an item of evidence cannot be
removed from the fire scene in order to preserve it or protect it from theft, for instance.
✔✔Spontaneous Combustion - ✔✔What fire process is vehicle motor oil NOT prone to
undergo
✔✔Spontaneous Combustion - ✔✔A phenomenon that does NOT occur to human
bodies (not supported by evidence)
✔✔Spontaneous Heating - ✔✔The process whereby a material increases in
temperature without drawing heat from its surroundings
✔✔Sprinkler Head - ✔✔Combustible materials should be kept 18 inches away from this
fire protection device
✔✔Stoichiometric Ratio - ✔✔The optimum fuel/air mixture where combustion is most
efficient
✔✔Surface Orientation - ✔✔This is the difference between wildfire V- patterns and
compartment fire V-patterns
✔✔Sweating - ✔✔Heaters located just under the interior faces of a refrigerators keep
this from occurring
✔✔Thermal Cutoff - ✔✔TCO stands for this, and "T" in particular
✔✔Thermal Cutoff - ✔✔A component in heat-producing appliances, which operates by
melting of an internal pellet when the appliance overheats, which turns off the unit
✔✔Thermal Inertia - ✔✔The property of a material that characterize its rate of surface
temperature rise when exposed to heat
✔✔Thermal Inertia - ✔✔Thermal conductivity, density, and heat capacity are the three
components of WHAT?
, ✔✔Thermal Protector - ✔✔A specific type of protective device that motors are generally
equipped with in a counter-top appliance, which may reset when the motor cools
✔✔Toxic Gases - ✔✔More people are killed by this in a fire incident, not necessarily by
the flames of fire
✔✔Trailers - ✔✔Fire patterns that indicate a deliberate attempt to distribute fire from
one location to another
✔✔Trained Personnel - ✔✔An investigator should notify this person(s) upon finding an
incendiary device that has not activated
✔✔Transformer - ✔✔A mechanism used to reduce voltages from the normal 120 V and
to isolate the rest of an appliance from the supply circuit
✔✔Transmission - ✔✔The type of pipeline used to convey natural gas from the storage
or production facilities to local utilities
✔✔Turbocharger - ✔✔The hottest point of an engine, which uses exhaust gases for
propulsion
✔✔Type 1 Construction - ✔✔The noncombustible construction type, made of steel and
concrete with fire resistance
✔✔Type 2 Construction - ✔✔The noncombustible construction type, made of steel and
concrete; but with little to no fire resistance
✔✔Type 3 Construction - ✔✔The Ordinary construction type, with masonry or
noncombustible exterior walls
✔✔Type 4 Construction - ✔✔Heavy timber or mill construction type
✔✔Type 5 Construction - ✔✔Wood framed construction type
✔✔Upper Explosive Limit - ✔✔Which will create more damage in an explosion: the
Upper or Lower Explosive Limit?
✔✔U.S. Coast Guard - ✔✔The entity, where an investigator can obtain recall
information regarding fire causes in boats and the manufacturer, model, and year
✔✔Utilities - ✔✔An immediate concern to the fire investigator is the status of the
structure's WHAT?
SOLUTIONS RATED A+
stance to the mass of an equal volume of water (at a temp. of 4C)
✔✔Speed of Fire Growth - ✔✔This fire characteristic is NOT indicated by the angle of
the borders of the V pattern
✔✔Spoliation - ✔✔This concept does NOT mean that an item of evidence cannot be
removed from the fire scene in order to preserve it or protect it from theft, for instance.
✔✔Spontaneous Combustion - ✔✔What fire process is vehicle motor oil NOT prone to
undergo
✔✔Spontaneous Combustion - ✔✔A phenomenon that does NOT occur to human
bodies (not supported by evidence)
✔✔Spontaneous Heating - ✔✔The process whereby a material increases in
temperature without drawing heat from its surroundings
✔✔Sprinkler Head - ✔✔Combustible materials should be kept 18 inches away from this
fire protection device
✔✔Stoichiometric Ratio - ✔✔The optimum fuel/air mixture where combustion is most
efficient
✔✔Surface Orientation - ✔✔This is the difference between wildfire V- patterns and
compartment fire V-patterns
✔✔Sweating - ✔✔Heaters located just under the interior faces of a refrigerators keep
this from occurring
✔✔Thermal Cutoff - ✔✔TCO stands for this, and "T" in particular
✔✔Thermal Cutoff - ✔✔A component in heat-producing appliances, which operates by
melting of an internal pellet when the appliance overheats, which turns off the unit
✔✔Thermal Inertia - ✔✔The property of a material that characterize its rate of surface
temperature rise when exposed to heat
✔✔Thermal Inertia - ✔✔Thermal conductivity, density, and heat capacity are the three
components of WHAT?
, ✔✔Thermal Protector - ✔✔A specific type of protective device that motors are generally
equipped with in a counter-top appliance, which may reset when the motor cools
✔✔Toxic Gases - ✔✔More people are killed by this in a fire incident, not necessarily by
the flames of fire
✔✔Trailers - ✔✔Fire patterns that indicate a deliberate attempt to distribute fire from
one location to another
✔✔Trained Personnel - ✔✔An investigator should notify this person(s) upon finding an
incendiary device that has not activated
✔✔Transformer - ✔✔A mechanism used to reduce voltages from the normal 120 V and
to isolate the rest of an appliance from the supply circuit
✔✔Transmission - ✔✔The type of pipeline used to convey natural gas from the storage
or production facilities to local utilities
✔✔Turbocharger - ✔✔The hottest point of an engine, which uses exhaust gases for
propulsion
✔✔Type 1 Construction - ✔✔The noncombustible construction type, made of steel and
concrete with fire resistance
✔✔Type 2 Construction - ✔✔The noncombustible construction type, made of steel and
concrete; but with little to no fire resistance
✔✔Type 3 Construction - ✔✔The Ordinary construction type, with masonry or
noncombustible exterior walls
✔✔Type 4 Construction - ✔✔Heavy timber or mill construction type
✔✔Type 5 Construction - ✔✔Wood framed construction type
✔✔Upper Explosive Limit - ✔✔Which will create more damage in an explosion: the
Upper or Lower Explosive Limit?
✔✔U.S. Coast Guard - ✔✔The entity, where an investigator can obtain recall
information regarding fire causes in boats and the manufacturer, model, and year
✔✔Utilities - ✔✔An immediate concern to the fire investigator is the status of the
structure's WHAT?
