The development of pinhole leaks where the...

Question 1 / 205eccefa0bacbc34ba4d46caf

Question 1 of 205eccefa0bacbc34ba4d46caf

The development of pinhole leaks where the boiler tubes enter the water drums and headers, may be evidence of __________.

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Question 1 of 20

5eccefa0bacbc34ba4d46caf

The development of pinhole leaks where the boiler tubes enter the water drums and headers, may be evidence of __________.

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🔍 Key Concepts

• Boiler water chemistry and how it affects metal surfaces at tube ends • Difference between corrosion from combustion byproducts versus corrosion from water-side treatment chemicals • Where pinhole leaks typically form when water chemistry is out of balance

💭 Think About

• Is this damage more likely to come from the fireside (gas/soot) or the waterside (boiler water) of the tubes? • What effect do very high alkalinity or oxygen scavenger chemicals have on metal at points of stress, such as tube ends rolled into drums or headers? • Which of these conditions is specifically associated with caustic attack or chemical attack at seams and joints rather than general surface fouling?

✅ Before You Answer

• Identify whether pinhole leaks at tube entries are usually a waterside corrosion issue or a fireside fouling issue • Recall which treatment condition is linked with caustic gouging/pitting at stressed areas like tube ends • Eliminate any options that mainly relate to deposits on the gas side of tubes rather than the water side

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Question 1 of 20

The development of pinhole leaks where the boiler tubes enter the water drums and headers, may be evidence of __________.

gas laning

soot corrosion

excess alkalinity

excess hydrazine

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Question 1 / 205eccefa0bacbc34ba4d46caf

Question 1 of 205eccefa0bacbc34ba4d46caf

The development of pinhole leaks where the boiler tubes enter the water drums and headers, may be evidence of __________.

Back

Question 1 of 20

5eccefa0bacbc34ba4d46caf

The development of pinhole leaks where the boiler tubes enter the water drums and headers, may be evidence of __________.

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