Which of the following statements represents...

Question 1 / 205eccefa0bacbc34ba4d46c9b

Question 1 of 205eccefa0bacbc34ba4d46c9b

Which of the following statements represents the advantage of using a small diameter boiler tube over a larger diameter tube?

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Question 1 of 20

5eccefa0bacbc34ba4d46c9b

Which of the following statements represents the advantage of using a small diameter boiler tube over a larger diameter tube?

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🔍 Key Concepts

• Heat transfer in boiler tubes (conduction from hot gases through tube metal to water/steam) • Surface area-to-volume ratio changes when tube diameter changes • Effect of soot/scale as an insulating layer on heat transfer

💭 Think About

• If you keep the same length of tube but make the tube diameter smaller, what happens to the ratio of outside surface area compared to the water volume inside? • How would soot on the outside of the tube affect a small tube versus a large tube, if the soot thickness is the same on both? • Which option sounds like a direct geometric consequence of changing diameter, and which sound like secondary effects that may or may not always be true?

✅ Before You Answer

• Compare surface area per unit volume for small vs large tubes (think of many small tubes vs one big one). • Decide whether heat transfer rate is a cause or a result of geometry (surface area/volume) and cleanliness. • Ask: Which statement would be universally true by design of a small diameter tube, not just under special operating conditions?

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Question 1 of 20

Which of the following statements represents the advantage of using a small diameter boiler tube over a larger diameter tube?

Small diameter tubes have a greater ratio of generating surface area to the volume of contained water

Small diameter tubes reduce the heating surface area.

Small diameter tubes are less affected by the insulating properties of soot.

Small diameter tubes provide for greater heat transfer rates.

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Question 1 / 205eccefa0bacbc34ba4d46c9b

Question 1 of 205eccefa0bacbc34ba4d46c9b

Which of the following statements represents the advantage of using a small diameter boiler tube over a larger diameter tube?

Back

Question 1 of 20

5eccefa0bacbc34ba4d46c9b

Which of the following statements represents the advantage of using a small diameter boiler tube over a larger diameter tube?

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