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------------------------------------------------ Which foam gives lower extinguishment times on structural and wildland fires?

A. Class A foam
B. Class B foam
C. Class K foam
D. Alcohol-resistant foam

Answer :

Final answer:

Class A foam gives lower extinguishment times on structural and wildland fires compared to other foams such as Class B, Class K, and Alcohol-resistant foam.

Explanation:

The foam that gives lower extinguishment times on structural and wildland fires is Class A foam. Class A foam is specifically designed to combat fires fueled by ordinary combustible materials such as wood, paper, and cloth. It works by reducing the surface tension of water and making it more effective at extinguishing fires.

Class B foam, on the other hand, is used to extinguish flammable liquid fires such as gasoline or oil. Class K foam is designed for use on cooking oil fires in commercial kitchens. Alcohol-resistant foam is formulated to combat fires involving alcohols and other polar solvents. While these foams are effective for specific types of fires, they may not have the same extinguishment times as Class A foam on structural and wildland fires.

Learn more about Class A foam here:

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