Class A fires involve which materials?

Class A fires involve which materials?

• A. Flammable Liquids
• B. Paper, Wood, Fabric
• C. Electrical
• D. Plastics

Answer: (B)

Class A fires involve ordinary combustibles—solid materials that burn and leave ash. The typical examples are paper, wood, and fabric, which is exactly what this question lists. These fuels react to heat by decomposition and combustion, and water-based extinguishers are effective because they cool the fuel, preventing it from reaching ignition again. In contrast, other choices correspond to different fire classes: flammable liquids burn as liquids and fall under Class B; electrical fires involve energized equipment and require non-conductive agents after de-energizing the power; plastics aren’t the standard examples used for Class A, though some plastics can burn as solids. So the best answer centers on the ordinary combustibles category.

Class A fires involve ordinary combustibles—solid materials that burn and leave ash. The typical examples are paper, wood, and fabric, which is exactly what this question lists. These fuels react to heat by decomposition and combustion, and water-based extinguishers are effective because they cool the fuel, preventing it from reaching ignition again. In contrast, other choices correspond to different fire classes: flammable liquids burn as liquids and fall under Class B; electrical fires involve energized equipment and require non-conductive agents after de-energizing the power; plastics aren’t the standard examples used for Class A, though some plastics can burn as solids. So the best answer centers on the ordinary combustibles category.