What is the appropriate extinguishing agent for a Class Alpha fire?

For a Class Alpha fire, which involves ordinary combustible materials such as wood, paper, and some plastics, water is typically the most effective extinguishing agent. Water can cool the fire and help extinguish it by removing heat from the combustion process.

Additionally, Aqueous Film Forming Foam (AFFF) can also be used, particularly in scenarios where there may be a risk of flammable liquids involved or for creating a foam blanket that can suppress the fire. However, its primary use is more common in Class B fires involving flammable liquids.

The reason the option indicating both AFFF and water is correct is that while water is the standard and most effective agent for Class Alpha fires, a foam can also be applicable under certain circumstances. The versatility of using both allows firefighters to adapt to the specific conditions of the fire scene, particularly if there's a presence of undefined combustible materials.

This flexibility in selecting the extinguishing agent is key to effective fire suppression, ensuring that personnel can address the specific risks present during the incident.