LPC FST 53 Ch 4 Questions and Answers
Materials found in a dry chemical fire extinguisher include:
None of the above.
Carbon dioxide is how many times heavier than air?
It is 1.5 times heavier than air.
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LPC FST 53 Ch 4 Questions and
Answers
Materials found in a dry chemical fire extinguisher include: - answer None of the
above.
Carbon dioxide is how many times heavier than air? - answer It is 1.5 times heavier
than air.
A class K fire is a fire burning in: - answer Cooking oils.
On wildland fires, in addition to cooling and oxygen depletion we can use: - answer
Fuel depletion
Heat is: - answer All of the energy both kinetic and potential.
A self-oxidizing material contains: - answer Oxygen
Wet water reduces the: - answer Surface tension of the water.
Water has a number of characteristics. The most important characteristic to fire fighters
is: - answer It is inexpensive and readily available.
The three categories of foam are: - answer Low, medium, and high expansion.
One pound of wood burns and generates approximately _______ BTUs. - answer
8,000
A BTU is: - answer The amount of heat needed to raise the temperature of 1 pound
of water 1˚F
AFFF is a mixture of: - answer Water, foam concentrate, and air.
Thermal balance in a room fire is where the heated air is: - answer In the upper
portion of the room.
When applying water on a magnesium fire, fire fighters must be careful because: -
answer Magnesium breaks down water into oxygen and hydrogen.
The most common method of fire extinguishment is: - answer Cooling the
temperature of the fuel to below its ignition temperature with water
absolute zero occurs when: - answer There is no movement of the molecules.
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