Multipurpose dry chemical Agent is associated with which class?

• A. Class A and B
• B. Class C
• C. Class A
• D. Class D

Answer: (C)

Multipurpose dry chemical extinguishing agents (the ABC type) are designed to handle more than one fire class. They’re effective on ordinary combustibles (Class A), flammable liquids (Class B), and energized electrical equipment (Class C). The powder works by interrupting the chemical reactions occurring in the flame and by coating the fuel to cool and smother the fire, which gives these agents their broad, multipurpose capability. While they can tackle A, B, and C fires, they are not suitable for metal fires (Class D). In the context of the options provided, this broad applicability is represented by Class A, recognizing that the same agent also covers B and C.