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80 Cards in this Set

  • Front
  • Back

A material used to stop the combustion process

Extinguishing agent

Periodic testing of an extinguisher to verify it has sufficient strength to withstand internal pressures

Hydrostatic testing

Very cold, forms a dense cloud that displaces the air surrounding the fuel


An extinguishing agent used on Class B fires that forms a foam layer over the liquid and stops the production of flammable vapors

Aqueous film forming foam (AFFF)

The weight of combustibles in a fire area or on a floor in building structures

Fire load

A retaining device that breaks when the locking mechanism is released

Tamper seal

The initial stage of a fire


An extinguishing agent used in dry chemical fire extinguishers that can be used on Class A, B, and C fires

Ammonium phosphate

Film forming fluoroprotein foam, a Class B foam additive


A gauge on a pressurized portable fire extinguisher that indicates internal pressure of the expellant

Pressure indicator

What is the extinguishing agent that is used in portable fire extinguishers can be applied by hand?

Sodium chloride based

How are fire extinguishers weighing more than 40 pounds mounted?

Top of extinguisher is not more than 3 feet above the floor

What does the best method of transporting a hand held portable fire extinguisher depend on?



Design of extinguisher

What does all fires require?




What is the number that is related to Class A fire extinguishers?

Amount of water the fire extinguisher holds

What is the safest and surest way to extinguish a Class C fire?

1. Turn off the power

2. Treat it like a A or B fire

What does Class D fire most often encounter?

Machine or repair shops

Where is the extinguishing agent in a fire extinguisher stored?


How much heavier is Carbon dioxide heavier than air?

Carbon dioxide is

1.5 times heavier

Than air

How are Class B fire extinguishers identified?

Solid red square - Flammable liquids

What are carbon dioxide extinguishers not recommended for?

Outdoor use

What type of fire extinguishers should be used for electrical rooms?

Class C

Water soluble flammable liquid (alcohol, acetone, ester, ketone)

Polar solvent

Occupancies where total amounts of Class A and Class B are greater than expected

Extra hazard locations

Material used to stop combustion process (liquids, gas, dry chemical, dry powder)

Extinguishing agent

Expellant gas in separate container from extinguishing agent storage container

Cartridge/cylinder fire extinguisher

What organization tests and certifies fire extinguishers?

Underwriters Laboratories, Inc (UL)

What fire extinguisher is used for cooking appliances?

Class K fires

What is chemical process that occurs when a fuel is combined with oxygen (ash product)?

Rapid oxidation

What type of fire extinguishers are rated to fight Class A, B, C fires?

Multipurpose dry chemical extinguisher

What extinguishers have a short discharge range?

Carbon dioxide

How is the extinguishing agent of a portable extinguisher discharged?

Through a nozzle or horn

What is a fire extinguishing agent that does not leave a residue when it evaporates?

Clean agent

What type of extinguishers are used primarily outdoors for fighting brush and grass fires?

Backpack extinguishers

Which class fire have solid red square?

Class B

Which class fire involves wood, cloth, rubber, household rubbish, and some plastics?

Class A

What is a colorless, odorless, electronically nonconductive gas that puts out Class B and C fires by displacing oxygen and cooling the fuel?

Carbon dioxide

What must be done to a fire extinguisher after each and every use?


Temperature at which a substance will burn

Ignition point

Which fire extinguisher are identified by a solid yellow five point star?

Class D = solid yellow five point star

Which fire extinguisher should be used only when its clean properties are essential?

Halon 1211

What is the first step of PASS?

Pull safety pin

What is measurement above the floor that a fire extinguisher should be mounted?

Bottom of extinguisher should be mounted at least 4 inches above the floor

What are some examples of light hazard areas?

Most offices or classrooms

What is the primary disadvantage of fire extinguishers?

One shot device

What is the time interval for testing requirements for an extinguisher?

Based on construction material and vessel type

How much extinguishing agent does a fire extinguisher contain?

Several hundred pounds

What does a number rating indicate of a Class B extinguisher?

Number of square feet that it can cover

The tapered discharge nozzle of a carbon dioxide type fire extinguisher


The body of the fire extinguisher where the extinguishing agent is stored


Electrically nonconducting, volatile, or gaseous fire extinguisher that does not leave a residue upon evaporation

Clean agent

A constricting appliance attached to the end of a fire hose or monitor to increase the water velocity and form a stream


The initial or beginning stage of a fire, in which it can be controlled or extinguished by portable extinguishers or small amounts of dry extinguishing agents, without the need for protective clothing or breathing apparatus

Incipient Stage

The process of converting the fatty acids in cooking oils or fats to soap or foam; the action caused by a Class K fire extinguisher


The weight of combustibles in the fire area or on a floor in buildings and structures, including either contents or building parts or both

Fire load

The button or lever used to discharge the agent from a portable fire extinguisher


A chemical process that occurs when a fuel is combined with oxygen, resulting in the formation of ash or other waste products and the release of energy as heat and light

Rapid Oxidation

A retaining device that breaks when the locking mechanism is released

Tamper Seal

The grip used for holding and carrying a portable fire extinguisher


A fire in ordinary combustible materials such as wood, cloth, paper, rubber and many plastics

Class A fire

A fire in flammable liquids, combustible liquids, petroleum greases, tars, oils, oil based paints, solvents, lacquers, alcohols, and flammable gases

Class B fire

A fire that involves energized electrical equipment

Class C fire

A fire in combustible metals, such as magnesium, titanium, zirconium, sodium, lithium and potassium

Class D fire

A fire in cooking appliance that involves combustible cooking media (vegetable or animal oils and fats)

Class K fire

Occupancies where the total amount of combustible materials is less than expected in an ordinary hazard location

Light (low) hazard locations

A fire extinguisher rated to fight A, B, and C fires

Multipurpose dry chemical fire extinguisher

A water soluble flammable liquid such as alcohol, acetone, ester and ketone

Polar solvent

What does PASS stand for?

Pull pin

Aim nozzle

Squeeze trigger

Sweep across burning fuel

What is letter, shape and color associated with Ordinary Combustible?

Ordinary Combustible

Letter = A

Shape = Triangle

Color = Green

What is letter, shape and color associated with Flammable Liquids?

Flammable Liquids

Letter = B

Shape = Square

Color = Red

What is letter, shape and color associated with Electrical Equipment?

Electrical Equipment

Letter = C

Shape = Circle

Color = Blue

What is letter, shape and color associated with Combustible Metals?

Combustible Metals

Letter = D

Shape = Five pointed star

Color = Yellow

How are extinguishers sustainable for use on Class K (combustible cooking oil) fires identified?

Pictograph showing a fire in a frying pan (no alphabet graphic)

What is the safest and surest way to extinguish a Class C fire?

1. Turn off power

2. Treat it like Class A or B

What does the letters indicate within the classification system for fire extinguishers?

Letters indicate effectiveness (A reflects amount of water it contains, B reflects approximate area can be extinguished)

Which fires have letters that are used to rate an extinguisher's effectiveness?

Only Class A and Class B fires

What does hydrostatic testing confirm?

Extinguisher has sufficient strength to withstand the internal pressures

Which type of fire extinguisher has chemical compounds that are used to extinguish Class D fires?

Dry powders

Which type of fire extinguisher are used to extinguish Class K fires?

Wet chemical

Which type of fire extinguisher are used to extinguish Class A fires?