If a centrifugal pump is being driven by a...

Question 1 / 205eccef9bbacbc34ba4d454e2

Question 1 of 205eccef9bbacbc34ba4d454e2

If a centrifugal pump is being driven by a steam turbine and the discharge valve is closed off, the pump will __________.

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Question 1 of 20

5eccef9bbacbc34ba4d454e2

If a centrifugal pump is being driven by a steam turbine and the discharge valve is closed off, the pump will __________.

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🔍 Key Concepts

• Centrifugal pump performance at shutoff (zero flow) • How steam turbine speed is controlled under changing load • What happens to power and temperature in a pump when the discharge is blocked

💭 Think About

• Think about what happens to the flow, head (pressure), and power absorbed by a centrifugal pump when the discharge valve is gradually closed to zero flow. • Consider how a governed steam turbine reacts when the load (power demand) from the pump changes—does it naturally speed up, slow down, or stay nearly constant? • At zero flow, what happens inside the pump casing to the liquid in terms of recirculation and heating?

✅ Before You Answer

• Verify whether a centrifugal pump at shutoff (discharge valve closed) still spins and continues to impart energy to the liquid. • Check if the turbine governor tends to hold speed nearly constant when load changes, rather than allowing large speed swings. • Confirm whether a pump with no discharge flow is more likely to run hotter or cooler over time.

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Question 1 of 20

If a centrifugal pump is being driven by a steam turbine and the discharge valve is closed off, the pump will __________.

slow down

run cooler

speed up by 5% until the discharge valve is reopened

no longer continue to internally convert the resultant energy imparted to the pump

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Question 1 / 205eccef9bbacbc34ba4d454e2

Question 1 of 205eccef9bbacbc34ba4d454e2

If a centrifugal pump is being driven by a steam turbine and the discharge valve is closed off, the pump will __________.

Back

Question 1 of 20

5eccef9bbacbc34ba4d454e2

If a centrifugal pump is being driven by a steam turbine and the discharge valve is closed off, the pump will __________.

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