Which of the following conditions is true...

Question 1 / 205eccef9ebacbc34ba4d4652e

Question 1 of 205eccef9ebacbc34ba4d4652e

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explosive limit?

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Question 1 of 20

5eccef9ebacbc34ba4d4652e

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explosive limit?

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🔍 Key Concepts

• Upper Explosive Limit (UEL) vs Lower Explosive Limit (LEL) for flammable vapors • What "too rich" and "too lean" mean in terms of fuel–air mixture • Fire triangle: fuel, oxygen, and ignition source

💭 Think About

• Think about what happens when there is more vapor than the upper explosive limit allows—does that make it easier or harder to burn? • Relate UEL and LEL to real-life examples, like adjusting the fuel/air mix on a gas stove or an engine—what happens if there is way too much fuel? • Which answer choice clearly describes the condition of the fuel–air mixture when it is beyond the range where combustion can be sustained?

✅ Before You Answer

• Verify that explosive/flammable range is always between the LEL and UEL, not above or below them. • Check which answer choices describe mixtures outside the flammable range rather than inside it. • Confirm for yourself whether "perfect for combustion" refers to being within the flammable range or beyond its limits.

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Question 1 of 20

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explosive limit?

The mixture is too rich to burn.

Conditions are perfect for combustion.

The mixture is too lean to burn.

The vapor is about to explode.

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Question 1 / 205eccef9ebacbc34ba4d4652e

Question 1 of 205eccef9ebacbc34ba4d4652e

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explosive limit?

Back

Question 1 of 20

5eccef9ebacbc34ba4d4652e

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explosive limit?

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