Class K extinguishers are designed for which type of fire?

Class K extinguishers are designed for which type of fire?

• A. Cooking fires involving fats and oils
• B. Electrical equipment fires
• C. Chemical fires involving reactive metals
• D. Wood and paper fires

Answer: (A)

Class K extinguishers are designed for fires involving cooking fats and oils, such as those found in commercial kitchens. They use a wet chemical agent that saponifies fats on contact, turning the oil into a soapy layer that cools and blankets the fire, preventing reignition and keeping the oil from splashing as it is cooled. This specialized action is needed because fats and oils behave differently from other common fuels, and water-based extinguishing methods can spread the oil or cause dangerous splatter. These extinguishers aren’t intended for electrical fires, metal fires, or ordinary wood/paper fires, which require other classes of extinguishing agents.

Class K extinguishers are designed for fires involving cooking fats and oils, such as those found in commercial kitchens. They use a wet chemical agent that saponifies fats on contact, turning the oil into a soapy layer that cools and blankets the fire, preventing reignition and keeping the oil from splashing as it is cooled. This specialized action is needed because fats and oils behave differently from other common fuels, and water-based extinguishing methods can spread the oil or cause dangerous splatter. These extinguishers aren’t intended for electrical fires, metal fires, or ordinary wood/paper fires, which require other classes of extinguishing agents.