Portable fire extinguishers should be chosen based on the:
Type of fuel that is burning
What classification of portable fire extinguisher is used for fires that involve combustible liquids and gases?
Class B
What classification of portable fire extinguisher is used for fires that involve combustible metals and alloys?
Class D
What classification of portable fire extinguisher is used on fires that involve combustible cooking oils?
Class K
Which method of extinguishing works by excluding oxygen from the burning process?
Smothering
What expelling mechanism works when the operator physically applies pressure to a pump that increases pressure within the container?
Manual pump
What type of portable fire extinguisher is intended primarily for ground cover fires?
Pump-type water
What type of portable fire extinguisher uses air stored in the tank to force water up a siphon tube when operated?
Stored- pressure water
What type of portable fire extinguisher is intended for use on a Class K fires?
Wet chemical stored-pressure
The resulting foam from an aqueous film forming foam (AFFF) extinguisher will ___ fuels lighter than air.
Float on the surface of
What application method is used with an aqueous film forming foam (AFFF) extinguisher in order to prevent disturbing the fuel?
Allow foam to gently rain down onto fuel surface
What type of portable fire extinguisher is discharged in the form of gas and works on Class B and Class C fires?
Carbon dioxide (CO2)
What type of portable fire extinguisher may produce a cloud that reduces visibility when discharged?
Dry chemical
What type of portable fire extinguisher may be applied with either an extinguisher or a scoop?
Dry powder
What portable fire extinguisher rating is based on the approximate square foot (square meter) area of flammable liquid a non-expert operator can extinguish?
Class B rating
What portable fire extinguisher rating considers both the toxicity of the extinguishing agent and the toxicity of fumes produced when the agent is applied?
Class D rating
On a multiple marking extinguisher the rating for each class are:
Separate, they do not affect each other.
Which statement BEST describes portable fire extinguisher selection?
The correct extinguisher will minimize risk to life and property.
Once the proper extinguisher is selected, you must perform a visual inspection to ensure the extinguisher:
Is charged and operable
Once the proper extinguisher is selected, you must check to ensure the pressure gauge:
Is in the operable range.
The P in the PASS acronym stands for:
Pull pin by breaking wire or seal.
Which of the following statements BEST describes how to prevent scattering of lightweight fuels?
Apply the agent from point where it reaches, but does not disturb, the fuel surface.
Signal to others that a portable fire extinguisher is empty by:
Laying it on its side.
NFPA 10 requires inspection of portable fire extinguishers at least:
Once a year
During inspection, if a portable fire extinguisher is found deficient in weight by ___ percent it should be removed from service and replaced.
10
Do not remove the safety pin on a portable fire extinguisher until:
Ready to use the extinguisher
How often should portable fire extinguishers be removed from service for maintenance?
Annually