Deck 7: Portable Fire Extinguishers

Question 1

Once the proper extinguisher is selected, you must check to ensure the pressure gauge:

A) is not clouded over.
B) is in the operable range.
C) has been properly inspected.
D) records the last maintenance performed.

Answer 1

B

Question 2

What portable fire extinguisher rating considers both the toxicity of the extinguishing agent and the toxicity of fumes produced when the agent is applied?

A) Class A rating
B) Class B rating
C) Class C rating
D) Class D rating

Answer 2

D

Question 3

Once the proper extinguisher is selected, you must perform a visual inspection to ensure the extinguisher:

A) has no external marks.
B) is charged and operable.
C) feels as though it contains agent.
D) has a long enough hose to reach the fire.

Answer 3

B

Question 4

What type of portable fire extinguisher is intended primarily for ground cover fires?

A) Clean agent
B) Pump-type water
C) Aqueous film forming foam
D) Wet chemical stored-pressure

Question 5

What type of portable fire extinguisher is intended for use on Class K fires?

A) Clean agent
B) Pump-type water
C) Aqueous film forming foam
D) Wet chemical stored-pressure

Question 6

What classification of portable fire extinguisher is used for fires that involve combustible metals and alloys?

A) Class A
B) Class B
C) Class D
D) Class K

Question 7

What expelling mechanism works when the operator physically applies pressure to a pump that increases pressure within the container?

A) Scoop
B) Manual pump
C) Stored pressure
D) Pressure cartridge

Question 8

Portable fire extinguishers should be chosen based on the:

A) heat of the fire.
B) type of fuel that is burning.
C) amount of agent required to extinguish the fire.
D) distance required between the extinguisher and the fire.

Question 9

Which method of extinguishing works by excluding oxygen from the burning process?

A) Cooling
B) Smothering
C) Saponification
D) Chain breaking

Question 10

What portable fire extinguisher rating is based on the approximate square foot (square meter) area of flammable liquid a nonexpert operator can extinguish?

A) Class A rating
B) Class B rating
C) Class K rating
D) Multiple markings

Question 11

What type of portable fire extinguisher may produce a cloud that reduces visibility when discharged?

A) Dry chemical
B) Pump-type water
C) Aqueous film forming foam
D) Wet chemical stored-pressure

Question 12

The resulting foam from an aqueous film forming foam (AFFF) extinguisher will fuels lighter than air.

A) mix in with
B) float on the surface of
C) sink below the surface of
D) cause a chemical reaction with

Question 13

What application method is used with an aqueous film forming foam (AFFF) extinguisher in order to prevent disturbing the fuel?

A) Apply foam directly to fuel surface
B) Apply foam in conjunction with dry ice crystals
C) Allow foam to gently rain down onto fuel surface
D) Allow foam to rest before applying to fuel surface

Question 14

What type of portable fire extinguisher uses air stored in the tank to force water up a siphon tube when operated?

A) Clean agent
B) Pump-type water
C) Carbon dioxide (CO2)
D) Stored-pressure water

Question 15

On a multiple marking extinguisher the ratings for each class are:

A) directly related to the others.
B) only identified by pictographs.
C) separate, they do not affect each other.
D) indicators that firefighters should not use them.

Question 16

Which statement BEST describes portable fire extinguisher selection?

A) Extinguisher ratings do not impact selection.
B) The correct extinguisher will minimize risk to life and property.
C) The correct extinguisher will always require an expert operator.
D) All types of extinguishers can be selected regardless of the situation.

Question 17

What classification of portable fire extinguisher is used on fires that involve combustible cooking oils?

A) Class A
B) Class B
C) Class D
D) Class K

Question 18

What type of portable fire extinguisher may be applied with either an extinguisher or a scoop?

A) Dry powder
B) Dry chemical
C) Pump-type water
D) Wet chemical stored-pressure

Question 19

What classification of portable fire extinguisher is used for fires that involve combustible liquids and gases?

A) Class A
B) Class B
C) Class D
D) Class K

Question 20

What type of portable fire extinguisher is discharged in the form of gas and works on Class B and Class C fires?

A) Clean agent
B) Pump-type water
C) Carbon dioxide (CO2)
D) Wet chemical stored-pressure

Question 21

During inspection, if a portable fire extinguisher is found deficient in weight by percent it should be removed from service and replaced.

A) 5
B) 8
C) 10
D) 12

Question 22

NFPA 10 requires inspection of portable fire extinguishers at least:

A) after every use.
B) every three months.
C) once every six months.
D) once a year.

Question 23

Which of the following statements BEST describes how to prevent scattering of lightweight fuels?

A) Wind may be used to allow the agent to reach the fuel surface.
B) First allow fuel to burn off vapors before applying agent to the fuel surface.
C) Apply the agent from point where it reaches, but does not disturb, the fuel surface.
D) Use two extinguishers, alternating application patterns, to apply agent to the fuel surface.

Question 24

The P in the PASS acronym stands for:

A) squeeze handles.
B) aim nozzle at base of fire.
C) sweep nozzle back and forth.
D) pull pin by breaking wire or seal.

Question 25

How often should portable fire extinguishers be removed from service for maintenance?

A) Monthly
B) Bi-monthly
C) Annually
D) Bi-annually

Question 26

Signal to others that a portable fire extinguisher is empty by:

A) laying it on its side.
B) marking it with a tag.
C) standing it straight up.
D) covering the hose with a blanket.

Question 27

Do not remove the safety pin on a portable fire extinguisher until:

A) ready to use the extinguisher.
B) the fire appears to be dying out.
C) ordered to by the commanding officer.
D) you are 10 feet (3.04 meters) from the fire.