A leaking boiler desuperheater may be...

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Question 1 of 205eccefa0bacbc34ba4d46d15

A leaking boiler desuperheater may be indicated by a/an __________. >I. gradual, but continual rise in phosphate readings in only one boiler >II. inability to maintain normal working pressure in the auxiliary steam system

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🔍 Key Concepts

• Function of a desuperheater in a boiler system and how it uses feedwater or spray water to reduce steam temperature • How a leak between desuperheater water and steam could affect boiler water chemistry, especially phosphate readings in a specific boiler • Effect of a desuperheater leak on the auxiliary steam system pressure and overall steam balance

💭 Think About

• If cooler water is leaking into the steam side, what happens to the boiler water treatment chemicals (such as phosphates) in that particular boiler compared to the others? • Would a desuperheater leak more likely cause a change in water chemistry, a loss of steam pressure, both, or something else entirely? Think about where the leak path goes. • Consider whether a small, continuous leak would be more visible as a chemistry trend over time or as an immediate pressure problem in the auxiliary steam system.

✅ Before You Answer

• Clarify in your mind whether phosphate readings apply to boiler water, feedwater, or steam, and how a desuperheater leak would change those readings in only one boiler. • Think through whether the auxiliary steam pressure is primarily controlled by the boiler firing rate and system demand, or if a small leak in the desuperheater would significantly and consistently prevent normal working pressure. • Before choosing, ask: could one of these indications be subtle and long‑term while the other would only appear with a much larger or different type of fault?

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