CSO Fire Safety and Prevention 2

Question 1

What three elements make up the fire triangle required for a fire to burn?

Accepted Answer

Heat, fuel, and oxygen

Answer

A fire requires heat, fuel, and oxygen — removing any one of these three elements will extinguish the fire.

Question 2

Which type of extinguisher should NEVER be used on an energized electrical fire?

Accepted Answer

Water extinguisher

Answer

Water conducts electricity and using it on an energized electrical fire can cause electrocution.

Question 3

How often must portable fire extinguishers be visually inspected in the workplace per OSHA?

Accepted Answer

Monthly

Answer

OSHA requires portable fire extinguishers to receive a monthly visual inspection and annual professional maintenance.

Question 4

When using PASS, where should you aim the extinguisher nozzle?

Accepted Answer

At the base of the fire

Answer

Aiming at the base of the fire attacks the fuel source directly and is the most effective discharge method.

Question 5

What is the PRIMARY function of a fire door in a workplace building?

Accepted Answer

Slow the spread of fire and smoke between sections

Answer

Fire doors resist fire and slow the spread of smoke and flames, giving occupants more time to evacuate.

CSO - Common Safety Orientation Practice Test