BOF exam Study Questions with Correct Answers |
Latest 2026
Inversion Layer
Layer of warmer air above cooler air
Master stream GPM
350-1500 gpm
Municipal Water System Component
Water source, water treatment facility, distribution systems
Chafing Block
Rubber/plastic/wood block placed under a fire hose to provide smooth contact
Team
2 or more individuals working together to achieve a goal
Backdraft
Can occur when a building is charged with superheated gasses and most available oxygen has
been consumed
Mechanical Ventilation
Ventilation using fans or other powered equipment
Single Donut Hose Roll
Used when a hose will be used directly from it's rolled state
, Main types of master stream appliances
Deck gun, portable monitor, elevated stream device
Through the Lock Method
Removal or bypass of the cylinder of a lock set so that the latch can be manipulated
Trench Cut
Used to stop fire spread in long, narrow hallways, such as strip malls and small storage
complexes
Stack effect
The vertical airflow within buildings caused by the temperature differences between the interior
and exterior of a building
Direct attack
Method of wildland fire attack in which firefighters attack the fire at it's burning edge
Outside Screw and Yoke Valve
Threaded stem that moves in and out as the valve is opened or closed
2-person seat carry
Used for victims who are disabled or paralyzed
Trunk Line
Part of water distribution system, carries large quantities of water to specific parts of a
municipality
Latest 2026
Inversion Layer
Layer of warmer air above cooler air
Master stream GPM
350-1500 gpm
Municipal Water System Component
Water source, water treatment facility, distribution systems
Chafing Block
Rubber/plastic/wood block placed under a fire hose to provide smooth contact
Team
2 or more individuals working together to achieve a goal
Backdraft
Can occur when a building is charged with superheated gasses and most available oxygen has
been consumed
Mechanical Ventilation
Ventilation using fans or other powered equipment
Single Donut Hose Roll
Used when a hose will be used directly from it's rolled state
, Main types of master stream appliances
Deck gun, portable monitor, elevated stream device
Through the Lock Method
Removal or bypass of the cylinder of a lock set so that the latch can be manipulated
Trench Cut
Used to stop fire spread in long, narrow hallways, such as strip malls and small storage
complexes
Stack effect
The vertical airflow within buildings caused by the temperature differences between the interior
and exterior of a building
Direct attack
Method of wildland fire attack in which firefighters attack the fire at it's burning edge
Outside Screw and Yoke Valve
Threaded stem that moves in and out as the valve is opened or closed
2-person seat carry
Used for victims who are disabled or paralyzed
Trunk Line
Part of water distribution system, carries large quantities of water to specific parts of a
municipality
