AFFF stands for?

• A. Automatic Foam Forming Agent
• B. Aqueous Film Forming Foam
• C. Aqueous Fluid Forming Foam
• D. Air Foam Forming Foam

Answer: (B)

This question tests your knowledge of firefighting foam acronyms and what AFFF stands for. AFFF stands for Aqueous Film-Forming Foam. It’s a water-based foam concentrate engineered to spread quickly over hydrocarbon fuels, forming a thin aqueous film that cools the fuel and prevents vapors from rekindling. This film separation helps blankets of foam control and suppress fires involving flammable liquids, which is why this type of foam is widely used in aircraft hangars, airports, and ships.

The other options aren’t the established name for this foam: it’s not Automatic Foam Forming Agent, not Aqueous Fluid Forming Foam, and not Air Foam Forming Foam. The defining feature of AFFF is the film-forming capability that creates that protective layer on the surface of the fuel.