During initial starting of the standby...

Question 1 / 205eccef9cbacbc34ba4d457cd

Question 1 of 205eccef9cbacbc34ba4d457cd

During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?

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Question 1 of 20

5eccef9cbacbc34ba4d457cd

During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?

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🔍 Key Concepts

• Safe starting procedures for turbine‑driven boiler feed pumps • Function of steam supply, exhaust, suction, and discharge/check valves in a pumping system • How a check valve protects the system during startup

💭 Think About

• Think through what happens inside the pump and turbine if each valve is open during initial start. Which condition could cause immediate overloading, water hammer, or damage? • Which valve(s) must be open so the turbine can actually turn, and the pump can have water available at its inlet? Then ask: which one is safer to keep shut until the unit is up to speed and conditions are stable? • Consider the purpose of a discharge check valve in a boiler feed system. Under what conditions do you want to prevent reverse flow or sudden pressure changes during startup?

✅ Before You Answer

• Verify which valves must be open for the turbine to rotate (think: steam in and steam out). • Verify that the pump cannot safely run without water at the suction side (avoid cavitation). • Verify how a discharge check valve behaves automatically versus manually operated valves, and when you would want the discharge line isolated during initial start.

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Question 1 of 20

During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?

Pump suction valve

Turbine exhaust valve

Turbine steam supply valve

Pump discharge check valve

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Question 1 / 205eccef9cbacbc34ba4d457cd

Question 1 of 205eccef9cbacbc34ba4d457cd

During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?

Back

Question 1 of 20

5eccef9cbacbc34ba4d457cd

During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?

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