When fighting a fire using a portable carbon...

Question 1 / 2707066636eec28f7522a1c51c2ce

Question 1 of 2707066636eec28f7522a1c51c2ce

When fighting a fire using a portable carbon dioxide extinguisher, where should the stream be directed to extinguish the fire?

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Question 1 of 27070

When fighting a fire using a portable carbon dioxide extinguisher, where should the stream be directed to extinguish the fire?

🔍 Key Concepts

• How carbon dioxide (CO₂) extinguishers put out a fire (oxygen displacement and cooling effect) • Why aiming at flames vs. fuel source makes a difference • Standard firefighting technique for portable extinguishers

💭 Think About

• Ask yourself: Are you trying to cool/knock down the visible flames, or cut off the fire at its source? • Which direction of movement (side-to-side vs. vertical) will cover the burning material most evenly and prevent re-ignition? • Think about how CO₂ gas behaves when released: does it rise or sink, and how does that affect where you should aim?

✅ Before You Answer

• Verify where firefighting training usually tells you to aim a portable extinguisher: flames or fuel/base • Check which option provides broad, even coverage of the burning surface, not just chasing flames upward • Consider how CO₂ being heavier than air affects whether you start high or low on the fire

Question 1 of 27070

When fighting a fire using a portable carbon dioxide extinguisher, where should the stream be directed to extinguish the fire?

At the base of the flames, moving the horn from side to side

At the center of the flaming area, moving the horn vertically from top to bottom

At the bottom of the flaming area, moving the horn vertically to the top following the flames upward as they diminish

At the top of the flaming area, moving the horn from side to side,

Question 1 / 2707066636eec28f7522a1c51c2ce

Question 1 of 2707066636eec28f7522a1c51c2ce

When fighting a fire using a portable carbon dioxide extinguisher, where should the stream be directed to extinguish the fire?

Back

Question 1 of 27070

When fighting a fire using a portable carbon dioxide extinguisher, where should the stream be directed to extinguish the fire?