Generally, a 12% to 14% content of carbon...

Question 1 / 205eccefa0bacbc34ba4d46e9a

Question 1 of 205eccefa0bacbc34ba4d46e9a

Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates __________.

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Question 1 of 20

5eccefa0bacbc34ba4d46e9a

Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates __________.

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🔍 Key Concepts

• Combustion efficiency in boilers and what flue-gas analysis tells you • Typical CO₂ percentage range in flue gas for efficient fuel-oil combustion • Relationship between excess air and CO₂ concentration in flue gases

💭 Think About

• If combustion is close to ideal, what happens to CO₂ levels in the flue gas—are they relatively high, low, or zero? • How does increasing excess air (more air than chemically needed) affect the percentage of CO₂ in the flue gas? • Which of the choices directly relates to flue-gas composition, and which are more about deposits or fuel properties?

✅ Before You Answer

• Compare the 12–14% CO₂ range with what you’d expect for efficient combustion of fuel oil in marine boilers • Ask whether excess air generally raises or lowers the CO₂ percentage in the flue gas sample • Separate effects of fuel properties/deposits (vanadium, carbon deposits) from effects on measured gas composition (CO₂, O₂)

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Question 1 of 20

Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates __________.

proper combustion of the fuel oil

carbon deposits in the uptakes

too much excess air

a high vanadium content in the fuel oil

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Question 1 / 205eccefa0bacbc34ba4d46e9a

Question 1 of 205eccefa0bacbc34ba4d46e9a

Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates __________.

Back

Question 1 of 20

5eccefa0bacbc34ba4d46e9a

Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates __________.

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