Portable Halon extinguishers used on a class...

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Question 1 of 205eccef9ebacbc34ba4d46384

Portable Halon extinguishers used on a class "B" fire should be directed __________.

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5eccef9ebacbc34ba4d46384

Portable Halon extinguishers used on a class "B" fire should be directed __________.

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🔍 Key Concepts

• Class B fires involve flammable liquids and require removing heat or interrupting the chemical reaction rather than just knocking down flames • Portable Halon extinguishers work primarily by interrupting the combustion (chemical) reaction, but they still must be applied correctly to be effective • General extinguisher technique: remember how you normally aim on a flammable liquid fire to avoid spreading the burning fuel

💭 Think About

• Think about where the fuel is actually burning in a Class B fire. Are you trying to put out the visible flames, or attack the source of the burning? • If you sweep the agent in the wrong place, could you either blow the fire around or fail to stop the burning liquid? Which aiming point best prevents the fire from spreading? • Compare how you would use a standard dry chemical extinguisher on a pan of burning oil. Would your aim point be any different just because the agent is Halon?

✅ Before You Answer

• Identify what part of the fire triangle (fuel, heat, oxygen, chemical chain reaction) Halon is mainly affecting • Confirm which option focuses on the fuel surface rather than just the visible flames • Eliminate any choice that focuses only on wind direction or the top of the flames, instead of controlling the burning liquid itself

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Question 1 of 205eccef9ebacbc34ba4d46384

Portable Halon extinguishers used on a class "B" fire should be directed __________.

Back

Question 1 of 20

5eccef9ebacbc34ba4d46384

Portable Halon extinguishers used on a class "B" fire should be directed __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed