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14 Cards in this Set

  • Front
  • Back

Pressure range in a carbon dioxide extinguisher is


A. 31 to 55 kPa


B. 5.6 to 6.3 Mpa


C. 5600 to 6300 Mpa


D. 31 to 55 Mpa

B. 5.6 to 6.3 Mpa

Maintenance is required by code to be performed annually by a certified agency.


T or F

True

When a stored pressure type fire extinguisher is to be stored in an area where the temperatures can be very low, it is protected from freezing by filling with a _____________________ (a type of antireeze)

loaded stream

In order to keep a CO2 fire extinguisher in a liquid phase it shouldn't be stored above ______ degrees C

55

Halogenated agent fire extinguishers are mostly designed for class _____ and ______

B and C

Halons 1301 presents a hazard for exposures in concentrations above


A. 4%


B. 15%


C. 25%


D. 10%

D. 10%

Foam type fire extinguishers achieve best results by:


A) Lobbing the foam over top of the fire


B) Discharging the agent with a sweeping motion


C) Bouncing the foam off the floor just in front of the burning area


D) Discharging the agent at the base of the flame


E) Splashing the agent into the burning liquid


C) Bouncing the foam off the floor just in front of the burning area

A red square on a fire extinguisher indicates that this extinguisher is suitable for a Class _____ fire.


A) “D”


B) “A”


C) “C”


D) “E”


E) “B”


E) “B

The pressure range in a carbon dioxide extinguisher is:


A) 31 to 55 MPa


B) 31 to 55 kPa


C) 56 to 63 kPa


D) 5 600 to 6 300 MPa


E) 5.6 to 6.3 MPa


E) 5.6 to 6.3 MPa

The fire extinguisher to be used on electrical equipment is marked with a “C” on a background consisting of a:


A) Green circle


B) Yellow star


C) Blue circle


D) Green triangle


E) Red square


C) Blue circle

Halon agents are:


A) Able to maintain cylinder pressure themselves regardless of temperature


B) Gradually replacing dry powder uni


C) Safe until they make contact with the combustion process


D) Themselves toxic


E) The most highly recommended for Class “B” and “C” use

D) Themselves toxic

Rating numerals to indicate the effectiveness of an extinguisher are used in reference to:


A) Class “A” fires


B) Class “A”, “B” and “C” fires


C) Class “B” fires


D) Class “A” and “B” fires


E) Class “C” fires

D) Class “A” and “B” fires

Burning metals may be extinguished using:


A) Dry chemical extinguishers


B) Foam extinguishers


C) Carbon dioxide extinguishers


D) Dry powder extinguishers


E) AFFF extinguishers

D) Dry powder extinguishers

One type of extinguisher suitable for extinguishing all four classes of fires is the:


A) Halon


B) Carbon dioxide


C) Dry chemical


D) Foam


E) None of the above

E) None of the above