CO2 mainly extinguishes a fire by which of...

Question 1 / 2707066636eec28f7522a1c51c0df

Question 1 of 2707066636eec28f7522a1c51c0df

CO2 mainly extinguishes a fire by which of the following?

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Question 1 of 27070

Q

CO2 mainly extinguishes a fire by which of the following?

🔍 Key Concepts

• Primary extinguishing mechanism of CO₂ on Class B and electrical fires • Difference between smothering, cooling, and chemical inhibition • Whether CO₂ significantly lowers the fuel temperature

💭 Think About

• When CO₂ is released onto a fire, what happens to the oxygen concentration around the flames? • Does CO₂ absorb a lot of heat from the burning material, or does it mainly affect the atmosphere around the fire? • Which common extinguishing agents are known for cooling versus chemical chain reaction interruption?

✅ Before You Answer

• Identify which choice best matches CO₂’s main method of extinguishing, not minor side effects • Recall that CO₂ does not leave a residue and is often used on electrical and machinery space fires • Confirm whether CO₂ is known for large temperature reduction of fuel or primarily for changing the surrounding gas composition

Question 1 of 27070

Q

CO2 mainly extinguishes a fire by which of the following?

A

Smothering

B

Chemical action

C

Cooling

D

All of the above

Question 1 / 2707066636eec28f7522a1c51c0df

Question 1 of 2707066636eec28f7522a1c51c0df

CO2 mainly extinguishes a fire by which of the following?

Back

Question 1 of 27070

Q

CO2 mainly extinguishes a fire by which of the following?

🔍 Key Concepts

• Primary extinguishing mechanism of CO₂ on Class B and electrical fires • Difference between smothering, cooling, and chemical inhibition • Whether CO₂ significantly lowers the fuel temperature

💭 Think About

• When CO₂ is released onto a fire, what happens to the oxygen concentration around the flames? • Does CO₂ absorb a lot of heat from the burning material, or does it mainly affect the atmosphere around the fire? • Which common extinguishing agents are known for cooling versus chemical chain reaction interruption?

✅ Before You Answer

• Identify which choice best matches CO₂’s main method of extinguishing, not minor side effects • Recall that CO₂ does not leave a residue and is often used on electrical and machinery space fires • Confirm whether CO₂ is known for large temperature reduction of fuel or primarily for changing the surrounding gas composition