Which attack method uses fog to distribute water and generate a broad spray from a safer location?

• A. Direct attack from compartment access
• B. Indirect attack
• C. Fog attack
• D. Mechanical isolation

Answer: (B)

Indirect attack focuses on cooling the fire from a safer location by using a fog pattern to blanket the space. The fog nozzle spreads water as a broad spray, soaking the upper heat layer and reducing heat release so the fire can be controlled without placing the firefighter directly in the hottest area. This approach buys time, lowers the danger of flashover, and lets you work from the doorway or outside the space while water does the initial cooling.

Direct attack, by contrast, would put a stream straight onto the flames from a closer, more exposed position, which is riskier in high heat or thick smoke. Fog attack and indirect attack both use a fog pattern, but indirect attack specifically emphasizes delivering cooling water from a safer location before entry, which is why it’s the best fit for this description. Mechanical isolation involves cutting off ventilation and does not rely on applying water in this way.