Which type of fire does a Class B extinguishing agent primarily handle?

A Class B extinguishing agent is specifically designed to combat fires involving flammable liquids, gases, and greases. This category includes substances such as gasoline, oil, alcohol, and paints. The effectiveness of Class B extinguishers comes from their ability to either smother the flames or reduce the heat below the ignition point of the material involved, preventing the fire from spreading.

In contrast, Ordinary combustibles would typically involve materials like wood, paper, and cloth, which are handled by Class A extinguishers. Electrical fires require agents that are non-conductive, making certain Class C extinguishers appropriate rather than Class B. Cooking fires, often involving oils and fats, may seem aligned with Class B as well, but they require specific types of dry chemical extinguishers or wet chemical agents, which cater specifically to those unique hazards.