Kitchen fires involving oils and fats are categorized as _____ fires.

Kitchen fires involving oils and fats are categorized as _____ fires.

• A. Class A
• B. Class B
• C. Class K
• D. Class C

Answer: (C)

Fires that involve cooking oils and fats fall into a distinct fire class because they burn a fuel that behaves very differently from common solids, liquids, or electrical sources. Cooking oil and fat fires reach very high temperatures and can reignite if not handled correctly, and water actually spreads these flames. That’s why they’re treated with a specific extinguishing approach: Class K extinguishers use a wet chemical agent that saponifies fats, turning the oil into a soapy layer, cooling it, and forming a barrier between the fuel and air. This combination smothers the flame and significantly reduces the risk of flare-ups. So, kitchen fires involving oils and fats are categorized as Class K fires. The other classes cover different fuels: Class A for ordinary combustibles like wood and paper, Class B for flammable liquids, and Class C for electrical fires, which don’t describe cooking oil fires accurately.

Fires that involve cooking oils and fats fall into a distinct fire class because they burn a fuel that behaves very differently from common solids, liquids, or electrical sources. Cooking oil and fat fires reach very high temperatures and can reignite if not handled correctly, and water actually spreads these flames. That’s why they’re treated with a specific extinguishing approach: Class K extinguishers use a wet chemical agent that saponifies fats, turning the oil into a soapy layer, cooling it, and forming a barrier between the fuel and air. This combination smothers the flame and significantly reduces the risk of flare-ups.

So, kitchen fires involving oils and fats are categorized as Class K fires. The other classes cover different fuels: Class A for ordinary combustibles like wood and paper, Class B for flammable liquids, and Class C for electrical fires, which don’t describe cooking oil fires accurately.