Which class of fires primarily involves flammable gases and liquids?

The classification of fires is based on the types of materials that fuel them, and Class B fires specifically involve flammable liquids and gases such as gasoline, oil, and solvents. These substances require special handling and extinguishing agents because they can ignite easily and can spread rapidly.

When dealing with Class B fires, it's essential to use extinguishing agents like foam, dry chemical, or carbon dioxide that can effectively smother the flames and prevent oxygen from fueling the fire. Understanding this classification helps ensure that the correct firefighting techniques and equipment are employed to effectively contain and extinguish these types of fires.

Other classes of fires focus on different materials: Class A is primarily about ordinary combustibles like wood and paper; Class C involves electrical fires; and Class D relates to combustible metals. Each class has distinct characteristics and requires appropriate responses, but Class B is specifically concerned with flammable gases and liquids.