Which of the following is NOT covered under Class B fires?

Class B fires involve flammable liquids and gases, which include substances like gasoline, diesel, and oil. These materials are combustible and can produce significant amounts of flammable vapors that ignite easily, making them a key concern in fire safety.

On the other hand, paper falls under Class A fires, which involve ordinary combustibles such as wood, cloth, and paper products. Class A fires are extinguished using different approaches, typically involving water or other extinguishing agents designed to suppress solid materials. Recognizing the distinction between these classes is crucial for effective fire response and safety management, as using the wrong type of extinguisher could exacerbate a fire situation.