IFSTA 7 EXAM PREP - CHAPTER 14:
FIRE SUPPRESSION EXAM
QUESTIONS COMPLETE WITH
VERIFIED ANSWERS
\.When firefighters apply water to the hot gas layer in a compartment, it will:
(670) [4.3.10]
a. increase the potential for flashover.
b. increase the radiant heat flux from the upper layer.
c. reduce the radiant heat flux from the upper layer.
d. push fire into adjacent rooms. - ANSWERS✔-c. reduce the radiant heat flux
from the upper layer.
\.What can happen if excess steam is produced inside the structure as a result of
applying water on the fire? (670) [4.3.10]
a. Disruption of the thermal layering
b. Increase in the potential for backdraft or flashover
c. Transition from fuel-limited to ventilation-limited conditions
d. Pyrolysis process speeds up - ANSWERS✔-a. Disruption of the thermal layering
,\.In which situation would fuel removal be a likely method of extinguishment?
(670) [4.3.19]
a. Fire in an apartment building
b. Fire in a one-story house
c. Grass fire
d. Warehouse fire - ANSWERS✔-c. Grass fire
\.Closing the valve on a natural gas tank to stop the emission of gaseous fuel
would be an example of: (670) [4.310]
a. fuel removal.
b. oxygen exclusion.
c. chemical flame inhibition.
d. temperature reduction. - ANSWERS✔-a. fuel removal.
\.When a firefighter controls doors and windows during fire attack, it is an
example of: (671) [4.310, 4.3.11]
a. chemical flame inhibition.
b. temperature reduction.
c. fuel removal.
d. oxygen exclusion. - ANSWERS✔-d. oxygen exclusion.
\.Clean agents extinguish fire by: (672) [4.3.10]
a. removing oxygen from the compartment.
b. removing the burning fuel.
, c. cooling the burning material.
d. Interrupting the combustion reaction. - ANSWERS✔-d. Interrupting the
combustion reaction.
\.If you are positioned to make fire attack, which condition would be important to
communicate to your supervisor or the Incident Commander? (673) [4.3.10]
a. Smoke that changes from gray to black
b. All team members' PASS devices are functioning
c. Amount of radiant heat felt by firefighters
d. Presence of bystanders at the perimeter - ANSWERS✔-a. Smoke that changes
from gray to black
\.Firefighters should ensure that PASS devices are on and operating properly:
(674) [4.3.10]
a. before entering the structure.
b. once they reach the seat of the fire.
c. before applying water to the fire.
d. once they reach their "point of no return." - ANSWERS✔-a. before entering the
structure.
\.Which tool or piece of equipment is a member of a fire attack team likely to
carry? (674) [4.3.10]
a. Salvage cover
b. PPV fan
c. Power saw
FIRE SUPPRESSION EXAM
QUESTIONS COMPLETE WITH
VERIFIED ANSWERS
\.When firefighters apply water to the hot gas layer in a compartment, it will:
(670) [4.3.10]
a. increase the potential for flashover.
b. increase the radiant heat flux from the upper layer.
c. reduce the radiant heat flux from the upper layer.
d. push fire into adjacent rooms. - ANSWERS✔-c. reduce the radiant heat flux
from the upper layer.
\.What can happen if excess steam is produced inside the structure as a result of
applying water on the fire? (670) [4.3.10]
a. Disruption of the thermal layering
b. Increase in the potential for backdraft or flashover
c. Transition from fuel-limited to ventilation-limited conditions
d. Pyrolysis process speeds up - ANSWERS✔-a. Disruption of the thermal layering
,\.In which situation would fuel removal be a likely method of extinguishment?
(670) [4.3.19]
a. Fire in an apartment building
b. Fire in a one-story house
c. Grass fire
d. Warehouse fire - ANSWERS✔-c. Grass fire
\.Closing the valve on a natural gas tank to stop the emission of gaseous fuel
would be an example of: (670) [4.310]
a. fuel removal.
b. oxygen exclusion.
c. chemical flame inhibition.
d. temperature reduction. - ANSWERS✔-a. fuel removal.
\.When a firefighter controls doors and windows during fire attack, it is an
example of: (671) [4.310, 4.3.11]
a. chemical flame inhibition.
b. temperature reduction.
c. fuel removal.
d. oxygen exclusion. - ANSWERS✔-d. oxygen exclusion.
\.Clean agents extinguish fire by: (672) [4.3.10]
a. removing oxygen from the compartment.
b. removing the burning fuel.
, c. cooling the burning material.
d. Interrupting the combustion reaction. - ANSWERS✔-d. Interrupting the
combustion reaction.
\.If you are positioned to make fire attack, which condition would be important to
communicate to your supervisor or the Incident Commander? (673) [4.3.10]
a. Smoke that changes from gray to black
b. All team members' PASS devices are functioning
c. Amount of radiant heat felt by firefighters
d. Presence of bystanders at the perimeter - ANSWERS✔-a. Smoke that changes
from gray to black
\.Firefighters should ensure that PASS devices are on and operating properly:
(674) [4.3.10]
a. before entering the structure.
b. once they reach the seat of the fire.
c. before applying water to the fire.
d. once they reach their "point of no return." - ANSWERS✔-a. before entering the
structure.
\.Which tool or piece of equipment is a member of a fire attack team likely to
carry? (674) [4.3.10]
a. Salvage cover
b. PPV fan
c. Power saw
