If a centrifugal pump were continually...

Question 1 / 270705eccef9bbacbc34ba4d454a9

Question 1 of 270705eccef9bbacbc34ba4d454a9

If a centrifugal pump were continually operated with the discharge valve closed, the __________.

Question 1 of 27070

If a centrifugal pump were continually operated with the discharge valve closed, the __________.

🔍 Key Concepts

• centrifugal pump operating characteristics when discharge flow is blocked • difference between pump overheating vs. motor overheating • what happens to energy added by the impeller when liquid cannot flow out

💭 Think About

• Think about where the liquid goes inside a centrifugal pump when the discharge valve is fully closed. Is there any flow path out of the casing? • Consider what happens to the energy the impeller is putting into the liquid if the liquid cannot move away. How does this affect temperature and mechanical parts? • Ask yourself which component is directly acting on the liquid (pump or motor) and which one would first feel the effect of zero-flow, high-friction circulation inside the casing.

✅ Before You Answer

• Verify what the term dead‑heading a centrifugal pump means in terms of flow and heat build‑up. • Check whether a centrifugal pump at zero flow produces high pressure with little motor load or high flow with high motor load. • Consider whether a relief valve automatically cycles in this situation on all centrifugal pumps, or whether overheating of a specific part is the more predictable outcome.

Question 1 of 27070

If a centrifugal pump were continually operated with the discharge valve closed, the __________.

motor controller overload would open

pump would eventually overheat

relief valve would continuously cycle open

motor would overheat

Question 1 / 270705eccef9bbacbc34ba4d454a9

Question 1 of 270705eccef9bbacbc34ba4d454a9

If a centrifugal pump were continually operated with the discharge valve closed, the __________.

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Question 1 of 27070

If a centrifugal pump were continually operated with the discharge valve closed, the __________.