🔍 Key Concepts

• Class B fire behavior (flammable liquids) and why foam is preferred • Effect of wind direction (windward vs leeward) on where you position firefighters and equipment • Proper use of water fog on a flammable liquid fire and what you should NEVER do with a solid water stream

💭 Think About

• Think about where the vapors and heat will blow in relation to the pier and the crew operating the monitor. • Ask yourself: does water directly on a liquid fuel fire help, or can it spread the fuel and fire? How should water be used instead? • Which position (windward or leeward) gives best protection to the crew while allowing the foam to blanket the burning surface and NOT push burning fuel toward the pier or vessel?

✅ Before You Answer

• Verify how foam should be applied to a flammable liquid fire (direct vs indirect application, and why a vertical surface is mentioned). • Check which side (windward or leeward) keeps personnel and equipment out of the path of heat, smoke, and vapors as much as possible. • Confirm that solid water streams onto burning liquid are generally avoided because they can spread burning fuel, while water fog is used primarily for personnel and exposure protection.