In a "D" type marine boiler, operating under...

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Question 1 of 205eccefa0bacbc34ba4d46e13

In a "D" type marine boiler, operating under constant load, which of the following conditions could cause the superheated steam temperature to rise above normal?

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5eccefa0bacbc34ba4d46e13

In a "D" type marine boiler, operating under constant load, which of the following conditions could cause the superheated steam temperature to rise above normal?

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🔍 Key Concepts

• Heat balance in a D-type marine boiler and how changes in combustion affect gas temperature at the superheater • Relationship between excess air / combustion air and furnace gas temperature • Effect of feedwater temperature and deaerating feed tank (DFT) pressure on drum conditions versus steam temperature

💭 Think About

• Which of these options directly affects the furnace gas temperature going over the superheater elements? • Do changes in feedwater temperature or DFT pressure primarily change steam temperature, or do they more strongly affect drum level, steaming rate, and efficiency? • What happens to flame temperature and gas temperature when there is not enough air for complete combustion?

✅ Before You Answer

• Identify which choice would most likely change the flue gas temperature at the superheater inlet under constant load • Check which factors mainly influence drum pressure and saturation temperature, not the superheater outlet temperature • Verify how insufficient combustion air affects flame temperature, smoke, and stack conditions in a boiler

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Question 1 of 205eccefa0bacbc34ba4d46e13

In a "D" type marine boiler, operating under constant load, which of the following conditions could cause the superheated steam temperature to rise above normal?

Back

Question 1 of 20

5eccefa0bacbc34ba4d46e13

In a "D" type marine boiler, operating under constant load, which of the following conditions could cause the superheated steam temperature to rise above normal?

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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