OSHA Fire Assessment Test | 24 Actual Questions With Detailed Answers 2025| solved

1. fire chemical reaction that requires the rapid burning of fuel

2. combination to heat, oxygen, fuel
create fire

3. how to extin- cover the fire to remove oxygen, cool the burning material
guish a fire to remove heat, remove the fuel

4. materials in the regular combustibles (paper, plastic), flammable chemi-
lab that could cals, compressed gases, electrical equipment
contribute to a
fire

5. most common fire
serious hazard in
a lab?

6. Class A fire ordinary combustibles (wood, cloth, paper, rubber, plastic)

7. Class B fire flammable liquids (burn at room temp), combustible liquids
(need heat to ignite; gas, kerosene, oil)

8. Class C fire electrical fire

9. common types of ABC, BC (pressurized dry chemical), CO2
extinguishers

10. Class A most common; easy to contain/extinguish; use ABC or
H2O; smolder for long periods, ABC leaves a mess and
shouldn't be used around computers/equipment

11. Class B chemicals, grease; CO2, ABC; CO2 preferred because no
residue

12. Class C (Class E) use CO2 or ABC

13. Class D fire combustible metals (Mg, K, T); requires a special powder
to extinguish
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