Extinguisher Definition

Question 1

Halon 1211 is a ______, faintly sweet smelling, _______ nonconductive gas that leaves no residue to clean up.

Answer 1

Colorless

Electrically

Question 2

Halon 1211 extinguishes fires by _______ the chemical chain reaction of the combustion process.

Answer 2

Inhibiting

Question 3

Halon 1211 is virtually ________, nonabrasive and is at least twice as effective as CO2 on Class B fires.

Answer 3

Non-corrosive

Question 4

What distinguishing markings do Halon 1211 extinguishers have around the tank?

Answer 4

Reflective Silver Band

Question 5

From the natural Halon 1211 product, what are the three hazards to personnel after the discharge of Halon 1211 to extinguish a fire?

Answer 5

Dizziness
Impaired Coordination
Asphyxiation

Question 6

Using Halon 1211 extinguishers in unventilated spaces or confined areas, operators should use positive-pressure ______-_______ _______ _________.

Answer 6

Self-Contained Breathing Apparatus

Question 7

CO2 is a colorless, odorless gas that is approximately one and one-half times ______ than air.

Answer 7

Heavier

Question 8

Exposure to CO2 in _______ ________ for extended periods of time can be fatal.

Answer 8

High Concentrations

Question 9

Tests indicate that voltages greater than 15 kilovolts can be developed on insulated metal objects from a 1-to 2-second application of CO2 from an extinguisher, this voltage is sufficient to cause a ______.

Answer 9

Spark.

Question 10

CO2 agent application should commence at the upwind edge and be directed slowly in a side-to-side _______ _______, gradually moving toward the back of the fire.

Answer 10

Sweeping Motion

Question 11

These CO2 extinguishers have a limited discharge range of ____ to ____ feet depending on the extinguisher size and application rate.

Answer 11

3

8

Question 12

The CO2 extinguishers have a discharge time of ___ to ___ seconds, depending on the extinguisher size and application rate.

Answer 12

8

44