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FINAL FF2 Exam 2 with complete solutions 2024_2025.
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FINAL FF2 Exam 2 with complete solutions 2024_2025.
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FINAL FF2 Exam 2 with completesolutions 2024/2025
In order for the Incident Management System to function properly, it must contain
which component? - ANSWER- Incident Action Plans
Under the Incident Command structure: - ANSWER- a chief officer arriving after
command has been established may assume command
Transfer of command is best accomplished: - ANSWER- face to face
Which is the must common type of foam proportioner used in the fire service? -
ANSWER- In-line educator
A __________ nozzle is used with a foam proportioner used in the fire service? -
ANSWER- Fog
The elements needed to produce quality firefighting mechanical foam include: -
ANSWER- air, water, and concentrate
Class A foams are essentially wetting agents that _____ of water - ANSWER-
reduce the surface tension
On what class of fire are compressed air foam systems most effective? -
ANSWER- Class A
Production of an adequate amount of bubbles to form an effective foam blanket is
the definition of: - ANSWER- aeration
To ensure maximum effectiveness, use foam concentrates ____________ the
specific percentage for which they intended to be proportioned. - ANSWER- only
at
, The most effective type of foam for use on polar solvents is: - ANSWER- alcohol-
resistant/aqueous film forming (AFFF)
Application rate in relationship to a flammable liquid fire is: - ANSWER- amount of
foam or foam solution needed to extinguish a fire:
Which is one of the ways foams is applied using a nozzle? - ANSWER- Rain down
technique
Once the valve on a container of flammable gases has been shut off the hose
crew should: - ANSWER- continue to apply water as they exit the area
Air aspirating for nozzles: - ANSWER- are recommended for use with protein and
fluoroprotein foams
Which is a method by which foam may be proportioned? - ANSWER-
Induction/eduction
Which statement is correct regarding foam application? - ANSWER- Fog nozzles
are best used with Class A foams
Class A foams are used at _________ percent. - ANSWER- 0.1 - 1
An advantage of Class A foam is that it: - ANSWER- allows water to penetrate
dense materials instead of running off the surface
Which foam application technique requires the stream to be broken to preventing
splashing? - ANSWER- Rain down technique
The part of the total pressure that is lost when water is forced through pipe,
fittings, fire hose, and adapter is called: - ANSWER- Friction loss
Hidden fire can be checked by using a - ANSWER- Thermal imaging device
At 212*F , water expands to _________ times it's originals volume when it
converts to stream. - ANSWER- 1700
Natural roof ventilation openings consist of: - ANSWER- Scuttles hatches,
skylights, stairwell openings bulkheads
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