Which statement is TRUE about firefighting...

Question 1 / 2066636eec28f7522a1c51ce0f

Question 1 of 2066636eec28f7522a1c51ce0f

Which statement is TRUE about firefighting foam?

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Question 1 of 20

66636eec28f7522a1c51ce0f

Which statement is TRUE about firefighting foam?

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🔍 Key Concepts

• Firefighting foam purpose – what types of fires it is designed for (especially flammable liquids, Class B) • How foam works – smothering, cooling, and forming a vapor-sealing blanket on liquid fuel surfaces • Class C fires – what they are (energized electrical) and why water-based agents or foam may be dangerous

💭 Think About

• Think about which class of fire foam is MOST commonly and safely used on, and which classes it is generally NOT used on • Consider what a foam blanket actually does when it sits on top of a flammable liquid – what problem is it solving? • Ask yourself whether increasing temperature of the burning liquid would make a foam blanket more stable or less stable

✅ Before You Answer

• Verify which fire class foam is primarily intended for: Class B (flammable liquids) versus Class C (electrical) • Check whether foam has any role in controlling leaks from compressed gas cylinders, or if that sounds outside its normal use • Confirm that one of foam’s main functions is to form a vapor barrier to keep flammable vapors from mixing with air above the liquid surface

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Question 1 of 20

Which statement is TRUE about firefighting foam?

The air bubbles in foam act as an insulator in fighting a class C fire.

Foam can be used to control gases escaping from compressed gas cylinders.

Foam sets up a vapor barrier over a flammable liquid preventing flammable gases from rising.

The effectiveness of foam in forming a blanket over a burning liquid increases as the temperature of the liquid increases.

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Question 1 / 2066636eec28f7522a1c51ce0f

Question 1 of 2066636eec28f7522a1c51ce0f

Which statement is TRUE about firefighting foam?

Back

Question 1 of 20

66636eec28f7522a1c51ce0f

Which statement is TRUE about firefighting foam?

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?

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