Which main fire class is associated with liquids?

Which main fire class is associated with liquids?

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

Answer: (B)

Fires are grouped by the type of fuel that is burning, and liquids fall under the liquid-fuel category, known as Class B. This includes flammable liquids such as gasoline, kerosene, oils, solvents, and paints. The defining aspect is that the fuel is a liquid that can form flammable vapors and spread across a surface, so suppression focuses on cooling the liquid, preventing vapor release, or blanket coverage with agents like foam or dry chemical. The other classes don’t fit because they correspond to solid fuels (Class A), energized electrical equipment (Class C), or combustible metals (Class D).

Fires are grouped by the type of fuel that is burning, and liquids fall under the liquid-fuel category, known as Class B. This includes flammable liquids such as gasoline, kerosene, oils, solvents, and paints. The defining aspect is that the fuel is a liquid that can form flammable vapors and spread across a surface, so suppression focuses on cooling the liquid, preventing vapor release, or blanket coverage with agents like foam or dry chemical. The other classes don’t fit because they correspond to solid fuels (Class A), energized electrical equipment (Class C), or combustible metals (Class D).