What is a class C fire?

What is a class C fire?

• A. Electrical such as motors, switches
• B. Cooking oil
• C. Paper
• D. Metal

Answer: (A)

Fires are classified by the fuel or energy source feeding them, and Class C is assigned to energized electrical equipment. The key idea is that a Class C fire involves live electrical devices such as motors and switches, so the response focuses on safely shutting off power when possible and using extinguishing agents suitable for electrical fires that won’t conduct electricity or cause shock. That’s why this option describing electrical equipment best fits Class C. If the power is cut and the equipment is de-energized, the fire’s classification may change to reflect the actual fuel, but while it’s still energized, it’s Class C. The other options describe different fuels: cooking oil as a flammable liquid (Class B), paper as ordinary combustibles (Class A), and metal as a metal fire (Class D), which is why they don’t fit Class C.

Fires are classified by the fuel or energy source feeding them, and Class C is assigned to energized electrical equipment. The key idea is that a Class C fire involves live electrical devices such as motors and switches, so the response focuses on safely shutting off power when possible and using extinguishing agents suitable for electrical fires that won’t conduct electricity or cause shock. That’s why this option describing electrical equipment best fits Class C. If the power is cut and the equipment is de-energized, the fire’s classification may change to reflect the actual fuel, but while it’s still energized, it’s Class C. The other options describe different fuels: cooking oil as a flammable liquid (Class B), paper as ordinary combustibles (Class A), and metal as a metal fire (Class D), which is why they don’t fit Class C.