F02 F02 Fire Extinguisher Operations 1 — Questions and Answers
Question 1: Which class of fire extinguisher is rated for use on electrical equipment fires?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C extinguishers are designed for energized electrical equipment fires because they use non-conductive agents.
Question 2: What does the PASS technique stand for when using a fire extinguisher?
- Pull, Aim, Squeeze, Sweep (Correct answer)
- Push, Aim, Shoot, Spray
- Pull, Activate, Squeeze, Spray
- Point, Aim, Squeeze, Sweep
Correct answer: Pull, Aim, Squeeze, Sweep
PASS stands for Pull the pin, Aim at the base, Squeeze the handle, and Sweep side to side.
Question 3: How close should you be to a fire before discharging a portable extinguisher?
- 1–2 feet
- 3–5 feet
- 6–8 feet (Correct answer)
- 10–15 feet
Correct answer: 6–8 feet
Operators should position themselves 6–8 feet from the fire to stay within the extinguisher's effective range while maintaining safety.
Question 4: What indicates a fire extinguisher needs immediate recharging or replacement?
- The pressure gauge needle is in the green zone
- The pin and tamper seal are intact
- The pressure gauge needle is in the red zone (Correct answer)
- The label shows the last inspection date
Correct answer: The pressure gauge needle is in the red zone
A gauge needle in the red zone indicates the extinguisher is under- or over-pressurized and not ready for use.
Question 5: How often must portable fire extinguishers in NYC be inspected by a qualified person?
- Every 5 years
- Monthly
- Weekly
- Annually (Correct answer)
Correct answer: Annually
NYC Fire Code requires that portable extinguishers receive a thorough annual inspection by a qualified person.
Question 6: A dry chemical extinguisher is NOT suitable for which type of fire?
- Class B flammable liquid fire
- Class C electrical fire
- Class A ordinary combustibles
- Class K commercial cooking grease fire (Correct answer)
Correct answer: Class K commercial cooking grease fire
Class K fires from cooking grease require a wet chemical extinguisher specifically formulated for high-temperature fat fires.
F02 F02 Fire Extinguisher Operations 1
Which class of fire extinguisher is rated for use on electrical equipment fires?