Fire Safety Fire Extinguisher Types and Usage

Question 1

Which fire extinguisher class is designed specifically for fires involving flammable liquids such as gasoline and oil?

Accepted Answer

Class B

Answer

Class B fire extinguishers are rated for flammable and combustible liquid fires, including gasoline, oil, and grease.

Question 2

What does the PASS acronym stand for when using a fire extinguisher?

Accepted Answer

Pull, Aim, Squeeze, Sweep

Answer

PASS stands for Pull the pin, Aim at the base, Squeeze the handle, and Sweep side to side.

Question 3

A Class C fire extinguisher is appropriate for which type of fire?

Accepted Answer

Electrical equipment fires

Answer

Class C extinguishers are rated for fires involving energized electrical equipment, where a non-conductive agent is essential.

Question 4

Where should you aim the nozzle of a fire extinguisher when fighting a fire?

Accepted Answer

At the base of the fire

Answer

Aiming at the base of the fire attacks the fuel source, which is the most effective way to extinguish it.

Question 5

How often should portable fire extinguishers be inspected in a commercial building according to NFPA 10?

Accepted Answer

Monthly

Answer

NFPA 10 requires monthly visual inspections of portable fire extinguishers to ensure they are charged and accessible.

Fire Safety Practice Test