Which extinguisher is designed for cooking oil fires and uses a wet-chemical agent?

Which extinguisher is designed for cooking oil fires and uses a wet-chemical agent?

• A. Stored-pressure extinguisher
• B. Wet-chemical extinguishing agent
• C. Water extinguisher
• D. Dry chemical extinguisher

Answer: (B)

Cooking oil fires involve fats that burn hot and can be spread or splashed by water. A wet-chemical extinguishing agent is designed precisely for these fires. When sprayed on burning oil, the chemical reacts with the fat to form a soapy, foamy layer on the surface. This saponification turns the oil into soap, which blankets and cools the fire, separates the fuel from the heat, and smothers the flame to prevent reignition. This makes it especially effective for kitchen fires where frying oils are involved, such as in commercial settings. Other extinguisher types are not tailored for oil fires: general stored-pressure or dry chemical extinguishers can be used on a variety of fires but don’t provide the fat-saponifying, cooling blanket that a wet-chemical agent creates. Water extinguishers are unsafe for cooking oil fires because water can cause oil to splatter and spread the flames.

Cooking oil fires involve fats that burn hot and can be spread or splashed by water. A wet-chemical extinguishing agent is designed precisely for these fires. When sprayed on burning oil, the chemical reacts with the fat to form a soapy, foamy layer on the surface. This saponification turns the oil into soap, which blankets and cools the fire, separates the fuel from the heat, and smothers the flame to prevent reignition. This makes it especially effective for kitchen fires where frying oils are involved, such as in commercial settings.

Other extinguisher types are not tailored for oil fires: general stored-pressure or dry chemical extinguishers can be used on a variety of fires but don’t provide the fat-saponifying, cooling blanket that a wet-chemical agent creates. Water extinguishers are unsafe for cooking oil fires because water can cause oil to splatter and spread the flames.