In order to test the lifting pressure of the...

Question 1 / 205eccef9cbacbc34ba4d457c5

Question 1 of 205eccef9cbacbc34ba4d457c5

In order to test the lifting pressure of the deaerating feed heater relief valve, you would __________. close the auxiliary exhaust dump valves to the main and auxiliary condenser increase the set point of the reduced steam pressure to the auxiliary exhaust system

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🔍 Key Concepts

• Deaerating feed heater purpose and normal steam/exhaust sources • How a relief valve is normally tested for lifting pressure in a live system • Effect of closing auxiliary exhaust dump valves and raising reduced steam pressure set point on pressure at the heater

💭 Think About

• For statement I, what happens to pressure in the deaerating feed heater if you close the auxiliary exhaust dump valves to the main and auxiliary condenser? Does this tend to increase or decrease pressure at the relief valve? • For statement II, if you increase the set point of the reduced steam pressure to the auxiliary exhaust system, how does that change the pressure at the deaerating feed heater and its relief valve? • In normal plant practice, when you want to test a relief valve’s lift, do you try to increase or decrease the pressure in the protected component, and which of these actions actually does that?

✅ Before You Answer

• Verify which lines (dump valves and reduced steam) are directly connected to the deaerating feed heater shell and which act as pressure‑relief/pressure‑control paths away from it • Check whether closing the auxiliary exhaust dump valves causes backpressure to build at the deaerating feed heater or somewhere else in the system • Confirm whether increasing the reduced steam pressure set point will raise the pressure at the heater shell or only in a separate branch of the auxiliary exhaust system

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Question 1 of 20

I only

II only

Both I and II

Neither I nor II

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Question 1 / 205eccef9cbacbc34ba4d457c5

Question 1 of 205eccef9cbacbc34ba4d457c5

Back

Question 1 of 20

5eccef9cbacbc34ba4d457c5

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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