ESSENTIALS OF FIRE FIGHTING FINAL PAPER 2025
QUESTIONS WITH ANSWERS RATED A+
✔✔What is the primary consideration affecting how easily solid fuels ignite?
A) Specific gravity
B) Heat release rate
C) Total mass to the fuel
D) Suface-to-mass ratio - ✔✔D) Suface-to-mass ratio
✔✔*** What is the primary oxidizing agent in most fires? ***
A) Oxygen in the air
B) Carbon dioxide in the air
C) Hydrogen released during pyrolysis
D) Free radicals released during pyrolysis - ✔✔A) Oxygen in the air
✔✔*** The range of concentrations of fuel vapor and air within which combustion can
occur is the... ***
A) Lean-burning range
B) Self-sustaining range
C) Flammable (explosive) range
D) Oxidation (combustion) range - ✔✔C) Flammable (explosive) range
✔✔*** Which is an example of self-sustaining chemical reaction? ***
A) Convective flow
B) Flaming combustion
C) Chemical asphyxiation
D) Nonflaming combustion - ✔✔B) Flaming combustion
✔✔The four stages of fire development are...
, A) Incipient, growth, pyrolysis, and decay
B) Incipient, growth, fully developed, and decay
C) Ignition, incipient, fully developed, and decay
D) Ignition, ventilating, fully developed, and decay - ✔✔B) Incipient, growth, fully
developed, and decay
✔✔Which stage of fire occurs when all combustible materials in the compartment are
burning at their peak heat release rate based on the available oxygen?
A) Decay
B) Growth
C) Incipient
D) Fully developed - ✔✔D) Fully developed
✔✔*** Development of a fire in the incipient stage depends largely upon the... ***
A) Rate of the descent of the neutral plane
B) Characteristics of the compartment's ventilation
C) Characteristics and configuration of the fuel involved
D) Temperature differential between the fuel and the surrounding air - ✔✔C)
Characteristics and configuration of the fuel involved
✔✔*** If there are no openings for lateral movement during the growth stage of a fire,
the hot gases rebased during combustion will fill the compartment... ***
A) In swirling radiant currents
B) Starting at the ceiling and filling down
C) Uniformly as the room pressure equalizes
D) Upward and downward from the neutral plane - ✔✔B) Starting at the ceiling and
filling down
✔✔Most residential fires that develop beyond the incipient stage become...
QUESTIONS WITH ANSWERS RATED A+
✔✔What is the primary consideration affecting how easily solid fuels ignite?
A) Specific gravity
B) Heat release rate
C) Total mass to the fuel
D) Suface-to-mass ratio - ✔✔D) Suface-to-mass ratio
✔✔*** What is the primary oxidizing agent in most fires? ***
A) Oxygen in the air
B) Carbon dioxide in the air
C) Hydrogen released during pyrolysis
D) Free radicals released during pyrolysis - ✔✔A) Oxygen in the air
✔✔*** The range of concentrations of fuel vapor and air within which combustion can
occur is the... ***
A) Lean-burning range
B) Self-sustaining range
C) Flammable (explosive) range
D) Oxidation (combustion) range - ✔✔C) Flammable (explosive) range
✔✔*** Which is an example of self-sustaining chemical reaction? ***
A) Convective flow
B) Flaming combustion
C) Chemical asphyxiation
D) Nonflaming combustion - ✔✔B) Flaming combustion
✔✔The four stages of fire development are...
, A) Incipient, growth, pyrolysis, and decay
B) Incipient, growth, fully developed, and decay
C) Ignition, incipient, fully developed, and decay
D) Ignition, ventilating, fully developed, and decay - ✔✔B) Incipient, growth, fully
developed, and decay
✔✔Which stage of fire occurs when all combustible materials in the compartment are
burning at their peak heat release rate based on the available oxygen?
A) Decay
B) Growth
C) Incipient
D) Fully developed - ✔✔D) Fully developed
✔✔*** Development of a fire in the incipient stage depends largely upon the... ***
A) Rate of the descent of the neutral plane
B) Characteristics of the compartment's ventilation
C) Characteristics and configuration of the fuel involved
D) Temperature differential between the fuel and the surrounding air - ✔✔C)
Characteristics and configuration of the fuel involved
✔✔*** If there are no openings for lateral movement during the growth stage of a fire,
the hot gases rebased during combustion will fill the compartment... ***
A) In swirling radiant currents
B) Starting at the ceiling and filling down
C) Uniformly as the room pressure equalizes
D) Upward and downward from the neutral plane - ✔✔B) Starting at the ceiling and
filling down
✔✔Most residential fires that develop beyond the incipient stage become...
