Which foam type is not listed as a standard type used in airport fire operations?

• A. PCA Foam
• B. AFFF Foam
• C. Protein Foam
• D. Alcohol-Resistant Foam

Answer: (A)

The selection of PCA Foam as the answer highlights the understanding of standard fire suppression agents used in airport fire operations. In airport firefighting, the effective management of aviation fires focuses on the use of specific foam types that have been recognized for their effectiveness and safety. AFFF (Aqueous Film Forming Foam), Protein Foam, and Alcohol-Resistant Foam are all established foam types commonly employed in various emergency scenarios, particularly where flammable liquids like aviation fuel are involved.

AFFF provides rapid extinguishing properties and creates a film that prevents re-ignition, making it highly effective for liquid fuel fires. Protein Foam is derived from natural proteins and is effective in suppressing fuel fires by creating a thick blanket. Alcohol-Resistant Foam is specifically formulated to combat fires involving polar solvents, which may not be effectively extinguished by standard foams.

In contrast, PCA Foam does not represent a standard type recognized within the framework of airport fire operations and is therefore not part of the typical arsenal used by airport firefighting units. Understanding the specific uses and characteristics of each foam type is essential for effective firefighting practices in the aviation environment.