What is the danger if a boiler is brought on...

Question 1 / 270705eccefa0bacbc34ba4d47004

Question 1 of 270705eccefa0bacbc34ba4d47004

What is the danger if a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line?

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Question 1 of 27070

What is the danger if a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line?

🔍 Key Concepts

• Steam system pressure equalization between boilers on a common header • What happens inside a boiler when steam demand or flow suddenly changes • The meaning of priming, carryover, thermal shock, and how each occurs

💭 Think About

• When a higher‑pressure boiler is suddenly connected to a lower‑pressure line, which way will steam flow and how fast? • What effect would that sudden flow have on the water level and water surface inside the boiler? • Which of the listed problems is most directly caused by a sudden, violent change in steam flow across the water surface, rather than by temperature change or low feedwater level?

✅ Before You Answer

• Make sure you understand how priming and carryover occur (what inside the boiler causes them). • Review what thermal shock actually requires (big metal temperature difference, hot-to-cold or cold-to-hot). • Confirm whether low water or an overloaded superheater would logically be the first, most direct effect of suddenly connecting a much higher-pressure boiler to the line.

Question 1 of 27070

What is the danger if a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line?

an overloaded superheater

priming and carryover

thermal shock

low water