Class K extinguishing agents are specifically designed for which type of fire?

Class K extinguishing agents are specifically designed for which type of fire?

• A. Cooking fats and oils fires
• B. Electrical fires
• C. Wood and paper fires
• D. Metal fires

Answer: (A)

Class K extinguishing agents are designed for fires involving cooking oils and fats found in commercial kitchens. These fires behave differently from ordinary combustibles, and water can make them worse by causing splattering of hot oil. The wet chemical agents used in Class K (such as potassium acetate) saponify fats, turning the oil into a soapy layer that cools the fuel and blankets the surface. This layer starves the fire of heat and oxygen and helps prevent reignition. Because of this specialized action, Class K is the appropriate choice for cooking-oil and fat fires, not for electrical, wood/paper, or metal fires.

Class K extinguishing agents are designed for fires involving cooking oils and fats found in commercial kitchens. These fires behave differently from ordinary combustibles, and water can make them worse by causing splattering of hot oil. The wet chemical agents used in Class K (such as potassium acetate) saponify fats, turning the oil into a soapy layer that cools the fuel and blankets the surface. This layer starves the fire of heat and oxygen and helps prevent reignition. Because of this specialized action, Class K is the appropriate choice for cooking-oil and fat fires, not for electrical, wood/paper, or metal fires.