Soda-acid fire extinguishers are recommended for use on what type of fires?

Soda-acid fire extinguishers are particularly effective on fires involving solid combustible materials, such as wood, paper, and textiles. This type of extinguisher works by creating a chemical reaction that produces carbon dioxide, which displaces oxygen and helps to smother the fire. The primary purpose of soda-acid extinguishers is to combat ordinary combustible materials, which are classified as Class A fires.

While other types of extinguishers are specifically designed for flammable liquids, electrical fires, or gas fires, soda-acid extinguishers do not provide the best means for tackling those specific hazards. For instance, using a soda-acid extinguisher on flammable liquid fires can exacerbate the situation by spreading the fuel. Similarly, using it on electrical fires presents the risk of electrical shock, as these extinguishers are not suitable for that purpose.

Therefore, the best application of soda-acid fire extinguishers is indeed on fires involving materials like wood or paper, making it the correct choice in this scenario.