IFSTA FF1 EXAM SET 2025/2026 QUESTIONS WITH
ANSWERS MARKED A+
✔✔The process of ignition causes pyrolysis in solid fuels and ___ in liquid fuels.
A.melting
B.freezing
C.vaporization
D.kinetic reaction - ✔✔C. vaporization
p.210
✔✔What are the elements necessary to create fire in the model represented by the fire
triangle?
A.Fuel, oxygen, heat
B.Heat, fuel, ignition
C.Passive agents and heat
D.Oxygen and passive agents - ✔✔A. Fuel, oxygen, heat
p.212
✔✔Which of the following BEST describes what the fire tetrahedron represents?
A.A transfer of sound energy
B.The process of autoignition
C.An uninhibited chemical chain reaction
D.The relationship between fuel, oxygen, heat - ✔✔C. An uninhibited chemical chain
reaction
p.212
✔✔What method of heat transfer can become the dominant mode as the fire grows in
size?
A.Potential
B.Radiation
C.Conduction
D.Convection - ✔✔B. Radiation
p.222
✔✔Which of the following BEST describes what vapor pressure indicates?
A.How easily a substance will evaporate
B.How long it takes a substance to evaporate
C.What form the substance will take in a container
D.What direction a substance will take when released from a container - ✔✔A. How
easily a substance will evaporate.
p.226
✔✔In what stage is fire development largely dependent on the characteristics and
configuration of the fuel involved?
A.Incipient
, B.Growth
C.Fully Developed
D.Decay - ✔✔A. Incipient
p.241
✔✔What type of rapid fire development happens when all the combustible materials
and gases in a compartment ignite almost simultaneously?
A.Backdraft
B.Flashover
C.Combustion
D.Smoke explosion - ✔✔B. Flashover
p.247
✔✔What common element of flashover represents the shift from growth stage to fully
developed stage?
A.Rapidity
B.Compartment
C.Transition in fire development
D.Ignition of all exposed surfaces - ✔✔C. Transition in fire development.
p.247
✔✔Transition between preflashover and postflashover can occur _____
A.smoothly
B.rapidly
C.slowly
D.singlularly - ✔✔B. rapidly
p.247
✔✔Which of the following is a building indicator for a possible backdraft?
A.Optically dense smoke
B.Little or no visible flame
C.Turbulent smoke discharge
D.Fire confined to a void space - ✔✔D. Fire confined to a void space
p.249
✔✔Which of the following is a heat indicator for a possible backdraft?
A.Smoke stained windows
B.Turbulent smoke discharge
C.Fire confined to a void space
D.Contents with high heat release rate - ✔✔A. Smoke stained windows
p.249
✔✔Which of the following BEST describes why the liner should never be removed from
a protective coat?
A. It traps insulating air close to the body.
ANSWERS MARKED A+
✔✔The process of ignition causes pyrolysis in solid fuels and ___ in liquid fuels.
A.melting
B.freezing
C.vaporization
D.kinetic reaction - ✔✔C. vaporization
p.210
✔✔What are the elements necessary to create fire in the model represented by the fire
triangle?
A.Fuel, oxygen, heat
B.Heat, fuel, ignition
C.Passive agents and heat
D.Oxygen and passive agents - ✔✔A. Fuel, oxygen, heat
p.212
✔✔Which of the following BEST describes what the fire tetrahedron represents?
A.A transfer of sound energy
B.The process of autoignition
C.An uninhibited chemical chain reaction
D.The relationship between fuel, oxygen, heat - ✔✔C. An uninhibited chemical chain
reaction
p.212
✔✔What method of heat transfer can become the dominant mode as the fire grows in
size?
A.Potential
B.Radiation
C.Conduction
D.Convection - ✔✔B. Radiation
p.222
✔✔Which of the following BEST describes what vapor pressure indicates?
A.How easily a substance will evaporate
B.How long it takes a substance to evaporate
C.What form the substance will take in a container
D.What direction a substance will take when released from a container - ✔✔A. How
easily a substance will evaporate.
p.226
✔✔In what stage is fire development largely dependent on the characteristics and
configuration of the fuel involved?
A.Incipient
, B.Growth
C.Fully Developed
D.Decay - ✔✔A. Incipient
p.241
✔✔What type of rapid fire development happens when all the combustible materials
and gases in a compartment ignite almost simultaneously?
A.Backdraft
B.Flashover
C.Combustion
D.Smoke explosion - ✔✔B. Flashover
p.247
✔✔What common element of flashover represents the shift from growth stage to fully
developed stage?
A.Rapidity
B.Compartment
C.Transition in fire development
D.Ignition of all exposed surfaces - ✔✔C. Transition in fire development.
p.247
✔✔Transition between preflashover and postflashover can occur _____
A.smoothly
B.rapidly
C.slowly
D.singlularly - ✔✔B. rapidly
p.247
✔✔Which of the following is a building indicator for a possible backdraft?
A.Optically dense smoke
B.Little or no visible flame
C.Turbulent smoke discharge
D.Fire confined to a void space - ✔✔D. Fire confined to a void space
p.249
✔✔Which of the following is a heat indicator for a possible backdraft?
A.Smoke stained windows
B.Turbulent smoke discharge
C.Fire confined to a void space
D.Contents with high heat release rate - ✔✔A. Smoke stained windows
p.249
✔✔Which of the following BEST describes why the liner should never be removed from
a protective coat?
A. It traps insulating air close to the body.
