Which statement correctly describes Class A fires?

Which statement correctly describes Class A fires?

• A. Fires of organic materials that leave an ash, such as wood, paper, cloth, fiber.
• B. Fires are always extinguished with water only.
• C. They never occur on vessels with fuel oil.
• D. They are fires involving energized electrical equipment.

Answer: (A)

Class A fires involve ordinary combustibles that leave ash after burning, such as wood, paper, cloth, and fiber. This description fits the statement about fires of organic materials that leave an ash residue, making it the correct characterization. For extinguishing, water is effective for cooling and stopping the burn of these materials, though other agents like foam or dry chemical can be used in different situations. The other statements aren’t accurate: fires involving oil are Class B, energized electrical equipment fires are Class C, and it isn’t true that Class A fires can’t occur on vessels with fuel oil or that water is the sole extinguishing option.

Class A fires involve ordinary combustibles that leave ash after burning, such as wood, paper, cloth, and fiber. This description fits the statement about fires of organic materials that leave an ash residue, making it the correct characterization. For extinguishing, water is effective for cooling and stopping the burn of these materials, though other agents like foam or dry chemical can be used in different situations. The other statements aren’t accurate: fires involving oil are Class B, energized electrical equipment fires are Class C, and it isn’t true that Class A fires can’t occur on vessels with fuel oil or that water is the sole extinguishing option.