Which of the following when removed will...

Question 1 / 2707066636eec28f7522a1c51c774

Question 1 of 2707066636eec28f7522a1c51c774

Which of the following when removed will extinguish a fire?

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Question 1 of 27070

Q

Which of the following when removed will extinguish a fire?

🔍 Key Concepts

• Fire tetrahedron (heat, fuel, oxygen, chemical chain reaction) • Methods of fire extinguishment: cooling, smothering, starvation, interrupting chemical chain reaction • Which substances are normally present in air and which are added as extinguishing agents

💭 Think About

• Think about which element, when taken away, will stop the combustion process itself, not just dilute or cool it • Consider which of the listed options is actually required for a fire to keep burning • Ask yourself: which of these choices is a normal component of the atmosphere that supports combustion?

✅ Before You Answer

• Identify which answer choices are gases used as extinguishing agents versus something the fire actually needs • Recall that air is roughly 21% of one key gas that supports combustion—connect that to the options • Eliminate any option that is not universally necessary for all common fires to burn

Question 1 of 27070

Q

Which of the following when removed will extinguish a fire?

A

Nitrogen

B

Carbon dioxide

C

Sodium

D

Oxygen

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Question 1 / 2707066636eec28f7522a1c51c774

Question 1 of 2707066636eec28f7522a1c51c774

Which of the following when removed will extinguish a fire?

Back

Question 1 of 27070

Q

Which of the following when removed will extinguish a fire?

🔍 Key Concepts

• Fire tetrahedron (heat, fuel, oxygen, chemical chain reaction) • Methods of fire extinguishment: cooling, smothering, starvation, interrupting chemical chain reaction • Which substances are normally present in air and which are added as extinguishing agents

💭 Think About

• Think about which element, when taken away, will stop the combustion process itself, not just dilute or cool it • Consider which of the listed options is actually required for a fire to keep burning • Ask yourself: which of these choices is a normal component of the atmosphere that supports combustion?

✅ Before You Answer

• Identify which answer choices are gases used as extinguishing agents versus something the fire actually needs • Recall that air is roughly 21% of one key gas that supports combustion—connect that to the options • Eliminate any option that is not universally necessary for all common fires to burn