When discharging a portable CO2 fire...

When discharging a portable CO2 fire...

Question 1 of 2707066636eec28f7522a1c51c1d2

When discharging a portable CO2 fire extinguisher, you should NOT hold the horn of the extinguisher because the horn __________.

Question 1 of 27070

Q

When discharging a portable CO2 fire extinguisher, you should NOT hold the horn of the extinguisher because the horn __________.

🔍 Key Concepts

• CO2 fire extinguisher discharge characteristics (what happens to the gas when it leaves the cylinder) • Basic gas expansion and temperature relationship (what happens to temperature when a gas rapidly expands) • Typical materials and shape of the discharge horn on a CO2 extinguisher

💭 Think About

• When high‑pressure CO2 is released to the atmosphere, does it usually heat up, cool down, or stay the same temperature? How would that affect something you’re holding? • Think about why the horn is often made of hard plastic or rubber instead of bare metal. What risk is that design trying to reduce for the person using it? • In real use, would the main safety concern be the horn falling off, being in the flames, or a temperature‑related hazard to your hand?

✅ Before You Answer

• Make sure you recall that CO2 is stored under high pressure and at low temperature relative to ambient • Consider what rapid expansion of a compressed gas does to temperature at the outlet/horn • Focus on the primary personal safety risk to your hand when operating a CO2 extinguisher