CSO Fire Safety and Prevention 2 — Questions and Answers
Question 1: What three elements make up the fire triangle required for a fire to burn?
- Heat, fuel, and oxygen (Correct answer)
- Heat, fuel, and pressure
- Sparks, fuel, and air moisture
- Heat, oxygen, and carbon dioxide
Correct answer: Heat, fuel, and oxygen
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?
- Water extinguisher (Correct answer)
- CO2 extinguisher
- Dry chemical extinguisher
- Halon extinguisher
Correct answer: Water extinguisher
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?
- Monthly (Correct answer)
- Daily
- Annually only
- Every 5 years
Correct answer: Monthly
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?
- At the base of the fire (Correct answer)
- Upward toward the smoke
- At the top of the flames
- Directly at the center of the fire
Correct answer: At the base of the fire
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?
- Slow the spread of fire and smoke between sections (Correct answer)
- Provide a dedicated quick-exit route
- Block entry of emergency personnel
- Reduce noise between work areas
Correct answer: Slow the spread of fire and smoke between sections
Fire doors resist fire and slow the spread of smoke and flames, giving occupants more time to evacuate.
Question 6: What should you do if your primary evacuation route is blocked by fire?
- Use an alternate exit route (Correct answer)
- Try to move quickly through the fire
- Wait for help at the blocked exit
- Use the nearest elevator
Correct answer: Use an alternate exit route
Always use an alternate evacuation route; never walk through fire or use elevators during a fire emergency.
CSO Fire Safety and Prevention 2
What three elements make up the fire triangle required for a fire to burn?