Chapter 7 test

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Chapter 7 test

First name *

Last name *

Portable fire extinguishers should be chosen based on the: *

5 points

heat of the fire

type of fuel that is burning.

amount of agent required to extinguish the fire.

distance required between the extinguisher and the fire.

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

5 points

Class A

Class B

Class D

Class K

Other:

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

5 points

Class A

Class B

Class D

Class K

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

5 points

Class A

Class B

Class D

Class K

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

5 points

Cooling

Smothering

Saponification

Chain breaking

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

5 points

Scoop

Manual pump

Stored pressure

Pressure cartridge

Other:

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

5 points

Clean agent

Pump-type water

Aqueous film forming foam

Wet chemical stored-pressure

Other:

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

5 points

Clean agent

Pump-type water

Carbon dioxide (CO2)

Stored-pressure water

Other:

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

5 points

Clean agent

Pump-type water

Aqueous film forming foam

Wet chemical stored-pressure

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

5 points

mix in with

float on the surface of

sink below the surface of

cause a chemical reaction with

Other:

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

5 points

Apply foam directly to fuel surface

Apply foam in conjunction with dry ice crystals

Allow foam to gently rain down onto fuel surface

Allow foam to rest before applying to fuel surface

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

5 points

Clean agent

Pump-type water

Carbon dioxide (CO2)

Wet chemical stored-pressure

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

5 points

Dry chemical

Pump-type water

Aqueous film forming foam

Wet chemical stored-pressure

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

5 points

Dry powder

Dry chemical

Pump-type water

Wet chemical stored-pressure

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

5 points

Class A rating

Class B rating

Class K rating

Multiple markings

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

5 points

Class A rating

Class B rating

Class C rating

Class D rating

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

5 points

directly related to the others.

only identified by pictographs.

separate, they do not affect each other.

indicators that firefighters should not use them.

Which statement BEST describes portable fire extinguisher selection? *

5 points

Extinguisher ratings do not impact selection.

The correct extinguisher will minimize risk to life and property.

The correct extinguisher will always require an expert operator.

All types of extinguishers can be selected regardless of the situation.

Other:

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

5 points

has no external marks.

is charged and operable.

feels as though it contains agent.

has a long enough hose to reach the fire.

Other:

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

5 points

is not clouded over.

is in the operable range.

has been properly inspected.

records the last maintenance performed.

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