Topic 6 - Firefighting Fundamentals

Question 1

What is the firefighters primary and secondary duties ?

Answer 1

Saving lives; extinguishing fires and limiting damage

Question 2

What are the key elements to a fire?

Answer 2

Oxygen, heat and fuel

Question 3

What is the fire tetrahedron?

Answer 3

A chemical reaction with the other 3 elements

Question 4

What are the 4 classes of fires?

Answer 4

A: combustible materials
B: flammable liquids
C: electrical
D: combustible metals

Question 5

What extinguishing agent do you use for each class of fire?

Answer 5

A water, AFFF
B AFFF halon 1211 PKP CO2
C CO2 halon PKP H2O
D H2O

Question 6

Explain the following firefighting agents

Answer 6

AFFF synthetic fluorocarbon surfactant materials
WATER
HALON 1211electrically non conductive gas
CO2 displacement of oxygen
PKP breaks combustion chain