Which statement is true about an ABC extinguisher?

Which statement is true about an ABC extinguisher?

• A. A only
• B. C only
• C. ABC extinguisher can be used on A,B, or C fires
• D. B only

Answer: (C)

ABC extinguishers are designed to handle multiple fire types: ordinary combustibles (A), flammable liquids (B), and energized electrical equipment (C). This versatility comes from the dry chemical powder it uses, which coats the fuel, interrupts the chemical reactions in the flame, and forms a barrier between fuel and oxygen. For electrical fires, the powder is non-conductive, so it can be used on energized equipment without creating a current path. Because of these properties, an ABC extinguisher can be used on A, B, or C fires, which is why that statement is true. Options that claim it’s limited to only one fire type don’t fit the extinguisher’s multi-class capability.

ABC extinguishers are designed to handle multiple fire types: ordinary combustibles (A), flammable liquids (B), and energized electrical equipment (C). This versatility comes from the dry chemical powder it uses, which coats the fuel, interrupts the chemical reactions in the flame, and forms a barrier between fuel and oxygen. For electrical fires, the powder is non-conductive, so it can be used on energized equipment without creating a current path. Because of these properties, an ABC extinguisher can be used on A, B, or C fires, which is why that statement is true. Options that claim it’s limited to only one fire type don’t fit the extinguisher’s multi-class capability.