What agent do you not use on a Major fire?

What agent do you not use on a Major fire?

• A. Number 3 pennant
• B. Water
• C. Foam
• D. Dry chemical

Answer: (A)

The key idea is telling which items actually act to fight a fire versus something that signals conditions. When a major fire breaks out, you deploy true extinguishing agents: water to cool and smother the flame, foam to blanket hydrocarbon fuels and prevent vapors, and dry chemical to interrupt the chemical reactions and smother the fire. The Number 3 pennant, on the other hand, is a signaling flag used to communicate fire conditions or actions, not an extinguishing agent. It doesn’t contribute to putting out the flames, so it isn’t used to fight a major fire. The other options are valid firefighting media, while the pennant is not.

The key idea is telling which items actually act to fight a fire versus something that signals conditions. When a major fire breaks out, you deploy true extinguishing agents: water to cool and smother the flame, foam to blanket hydrocarbon fuels and prevent vapors, and dry chemical to interrupt the chemical reactions and smother the fire. The Number 3 pennant, on the other hand, is a signaling flag used to communicate fire conditions or actions, not an extinguishing agent. It doesn’t contribute to putting out the flames, so it isn’t used to fight a major fire. The other options are valid firefighting media, while the pennant is not.