What is the effective range for a dry chemical fire extinguisher?

What is the effective range for a dry chemical fire extinguisher?

• A. 5 feet
• B. 10-12 feet
• C. 15-20 feet
• D. 20-30 feet

Answer: (B)

The key idea here is how far you can effectively reach with a dry chemical extinguisher to apply the agent where it does the most good. Portable dry chemical extinguishers are designed to put powder out to about 10 to 12 feet, giving you enough distance to stay safe while you aim at the base of the fire and sweep the extinguisher to coat the fuel and interrupt the flame. If you’re much closer than that, you risk heat, a flare-up, or losing control of the stream. If you’re much farther, the powder may not reach the base of the fire to smother it effectively. So the typical practical reach is around 10–12 feet, making that choice the best fit.

The key idea here is how far you can effectively reach with a dry chemical extinguisher to apply the agent where it does the most good. Portable dry chemical extinguishers are designed to put powder out to about 10 to 12 feet, giving you enough distance to stay safe while you aim at the base of the fire and sweep the extinguisher to coat the fuel and interrupt the flame.

If you’re much closer than that, you risk heat, a flare-up, or losing control of the stream. If you’re much farther, the powder may not reach the base of the fire to smother it effectively. So the typical practical reach is around 10–12 feet, making that choice the best fit.