Question

course exam

what is the memory trick to remember the type of fire a class c fire extinguisher is designed to suppress?

c = carbon dioxide
c = cooking
c = current
c = chemical

Explanation:

Identify the target fire classification

The question asks for the memory trick used to remember the type of fire a Class C fire extinguisher is designed to suppress. We need to recall the standard mnemonic system used in Fire Classifications training.

Analyze the standard mnemonics

In fire safety, simple letter associations help people quickly remember fire classes:

• Class A: "Ash" (for ordinary combustibles like wood, paper, and trash that leave ash).
• Class B: "Barrel" or "Boil" (for flammable liquids like grease, gasoline, and oil).
• Class C: "Current" (for electrical fires involving live electrical equipment).
• Class D: "Dent" or "Dust" (for combustible metals).
• Class K: "Kitchen" (for cooking oils and fats).

Evaluate the given options

Let's match the options with the standard mnemonic for Class C:

• C = CARBON DIOXIDE: This is a type of extinguishing agent, not the class of fire itself.
• C = COOKING: This corresponds to Class K fires (commercial cooking media).
• C = CURRENT: This correctly represents electrical current, which is the defining hazard of a Class C fire.
• C = CHEMICAL: While chemicals can burn, they generally fall under Class B (flammable liquids/gases) or Class D (reactive metals), not Class C.

Therefore, "C = CURRENT" is the correct memory trick.

Answer:

• (A) C = CARBON DIOXIDE
• (B) C = COOKING
• (C) C = CURRENT (Correct answer)
• (D) C = CHEMICAL