Fire Safety Fire Safety Fundamentals — Questions and Answers
Question 1: What are the three elements of the fire triangle?
- Water, earth, and wind
- Heat, fuel, and oxygen (Correct answer)
- Smoke, flame, and gas
- Friction, static, and spark
Correct answer: Heat, fuel, and oxygen
The fire triangle consists of heat (ignition source), fuel (combustible material), and oxygen (from the air). Removing any one element prevents or extinguishes fire.
Question 2: What class of fire involves ordinary combustible materials like wood, paper, and cloth?
- Class A (Correct answer)
- Class B
- Class C
- Class D
Correct answer: Class A
Class A fires involve ordinary combustible materials such as wood, paper, cloth, rubber, and many plastics. Water and foam extinguishers are effective on Class A fires.
Question 3: What does the PASS acronym stand for in fire extinguisher operation?
- Push, Aim, Squeeze, Sweep
- Pull, Aim, Squeeze, Sweep (Correct answer)
- Point, Activate, Spray, Stop
- Pull, Adjust, Spray, Secure
Correct answer: Pull, Aim, Squeeze, Sweep
PASS stands for Pull the pin, Aim at the base of the fire, Squeeze the handle, and Sweep from side to side.
Question 4: What is a Class K fire?
- A fire in a classified area
- A cooking fire involving oils and fats in commercial kitchens (Correct answer)
- A potassium-based chemical fire
- A fire involving radioactive materials
Correct answer: A cooking fire involving oils and fats in commercial kitchens
Class K fires specifically involve cooking media like vegetable oils, animal fats, and greases in commercial cooking equipment, requiring wet chemical extinguishers.
Question 5: What is the primary cause of fire deaths in buildings?
- Burns from flames
- Smoke inhalation and toxic gases (Correct answer)
- Structural collapse
- Explosion
Correct answer: Smoke inhalation and toxic gases
Smoke inhalation is the leading cause of fire deaths. Toxic gases in smoke can incapacitate and kill occupants long before flames reach them.
Question 6: What does 'compartmentalization' mean in fire safety?
- Organizing fire equipment in compartments
- Dividing a building into fire-resistant sections to contain fire spread (Correct answer)
- Separating different types of extinguishers
- Storing chemicals in separate compartments
Correct answer: Dividing a building into fire-resistant sections to contain fire spread
Compartmentalization uses fire-rated walls, floors, and doors to divide buildings into sections that resist fire spread, buying time for evacuation and firefighting.
Fire Safety Fire Safety Fundamentals
What are the three elements of the fire triangle?