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Flashcards in Firefighting Fundamentals Deck (17)
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What is the primary duty of the firefighter?

To save lives

1

What is the secondary duty of the firefighter?

Extinguish fires/limit damage

2

What does the fire triangle consist of?

Heat, fuel and oxygen

3

What is the fourth element of the fire tetrahedron?

Chemical chain reaction

4

What are the classes of fire?

A, B, C, D

5

What is an alpha fire?

Combustible materials that produce ash.

6

How do you extinguish a class a fire?

H20
AFFF

7

What is a B fire?

Flammable liquids

8

How is a class B fire extinguished?

AFFF
Halon 1211
PKP
CO2

9

What is a class C fire?

Electrical fire

10

How do you extinguish a class C fire?

CO2
Halon 1211
PKP
H2O fog

11

What is a class D fire?

Combustible metals such as magnesium and titanium

12

How are class D fires extinguished?

H20 in large quantities
Jettison

13

What is Halon 1211 and how does it work?

Bromochlorodifluormethane.
Inhibits the chemical chain reaction of the combustion process

14

What percentage of AFFF concentrate is approved for naval use?

3 and 6

15

What is PKP and how does it extinguish fires?

Potassium bicarbonate.
Breaks the combustion chain.

16

How does CO2 extinguish fires?

Displaces oxygen