Which of the following items is used for Class A fire extinguishing?

For Class A fires, which typically involve ordinary combustibles such as wood, paper, and textiles, water is the most effective extinguishing agent. When applied to a Class A fire, water cools the burning material and reduces the temperature below its ignition point, effectively extinguishing the flames.

Halons and dry powders are used for different types of fires; Halons are more effective on Class B and C fires, while dry powders can be effective on Class D fires, which involve combustible metals. Foam, while versatile, is not the primary agent for Class A fires; it is mainly used for Class B fires involving flammable liquids because it creates a blanket over the fuel and prevents vapors from igniting.

Therefore, water is specifically recognized for its ability to extinguish Class A fires by cooling the burning material and reducing the risk of re-ignition.