Prepare for the TFM-04 Fire Extinguisher License – A with comprehensive flashcards and multiple choice questions. Each question offers hints and explanations. Get ready for your exam!

Multiple Choice

3%AFFF means?

The important idea is what the 3% in 3%AFFF represents. AFFF means Aqueous Film Forming Foam, a foam concentrate used for fires involving flammable liquids. The 3% is the mix ratio of concentrate to water, meaning 3 parts foam concentrate is combined with 97 parts water to make the extinguishing solution. So the correct description is a solution that is 3% foam concentrate and 97% water. The other options misstate either the ratio, the composition (protein vs synthetic), or which component is 3% vs 97%.

The important idea is what the 3% in 3%AFFF represents. AFFF means Aqueous Film Forming Foam, a foam concentrate used for fires involving flammable liquids. The 3% is the mix ratio of concentrate to water, meaning 3 parts foam concentrate is combined with 97 parts water to make the extinguishing solution. So the correct description is a solution that is 3% foam concentrate and 97% water. The other options misstate either the ratio, the composition (protein vs synthetic), or which component is 3% vs 97%.