Fire Safety Fire Extinguisher Operations 1 — Questions and Answers
Question 1: What does the acronym PASS stand for when using a fire extinguisher?
- Pull, Aim, Squeeze, Sweep (Correct answer)
- Push, Activate, Spray, Scan
- Point, Aim, Start, Stop
- Pull, Advance, Spray, Secure
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 2: Which class of fire extinguisher is designed for use on flammable liquid fires such as gasoline or oil?
- Class A
- Class B (Correct answer)
- Class C
- Class D
Correct answer: Class B
Class B extinguishers are rated for flammable and combustible liquid fires including gasoline, oil, grease, and paint.
Question 3: What is the minimum distance from which you should begin directing a fire extinguisher at the base of a fire?
- 1 to 2 feet
- 6 to 8 feet (Correct answer)
- 10 to 12 feet
- 15 to 20 feet
Correct answer: 6 to 8 feet
You should start approximately 6 to 8 feet from the fire and move closer as the fire diminishes.
Question 4: A fire extinguisher with an 'ABC' rating is effective on which types of fires?
- Ordinary combustibles only
- Flammable liquids and electrical fires only
- Ordinary combustibles, flammable liquids, and electrical fires (Correct answer)
- Metal fires only
Correct answer: Ordinary combustibles, flammable liquids, and electrical fires
ABC-rated dry chemical extinguishers are effective on Class A (ordinary combustibles), Class B (flammable liquids), and Class C (electrical) fires.
Question 5: After a fire extinguisher has been partially used, what must be done before returning it to service?
- Shake it and put it back
- Recharge or replace it immediately (Correct answer)
- Fill it with water
- Label it as partially used and leave it
Correct answer: Recharge or replace it immediately
Any extinguisher that has been used, even partially, must be recharged or replaced before being returned to its designated location.
Question 6: Which type of fire extinguisher should NOT be used on a Class C (electrical) fire?
- CO2 extinguisher
- Dry chemical extinguisher
- Water extinguisher (Correct answer)
- Halon extinguisher
Correct answer: Water extinguisher
Water extinguishers conduct electricity and must never be used on energized electrical equipment fires.
Fire Safety Fire Extinguisher Operations 1
What does the acronym PASS stand for when using a fire extinguisher?