The classification of fire that involves flammable and combustible liquids is which class?

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

Answer: (B)

Fires are categorized by the type of fuel involved, which guides how you combat them. Fires that involve flammable and combustible liquids fall under Class B, because this category covers liquids like gasoline, solvents, kerosene, and paints. These liquids behave differently from solids and metals, and water is usually not the right choice for extinguishing them; instead, appropriate agents such as dry chemical, foam, or CO2 are used depending on the liquid. Other classes cover different fuels: ordinary combustibles (wood, paper, cloth) are Class A, energized electrical equipment is Class C, and certain reactive metals are Class D.