Extinguishers

Question 1

What are the components of the fire tetrahedron?

Answer 1

• Heat
• Oxygen
• Fuel
• Chemical chain reaction

Question 2

What is a Class A fire?

Answer 2

solid carbonaceous materials
(wood, paper, rubber, etc.)

Question 3

What is a Class B fire?

Answer 3

Flammable liquids
(petrol, oil, alcohol, etc.)

Question 4

What is a Class C fire?

Answer 4

Flammable gases
(LPG, acetylene, etc.)

Question 5

What is a Class D fire?

Answer 5

Combustible metals
(magnesium, sodium, aluminium shavings, etc.)

Question 6

What is an E type fire?

Answer 6

Fire involving electricity

(considered a sub-class of class D as electricity is not a fuel)

Question 7

What is a Class F fire?

Answer 7

Fats and cooking oils