The starting torque in case of centrifugal pumps is generally_________________?
Correct answer: A. less than running torque
- A. less than running torque
- B. same as running torque
- C. slightly more than running torque
- D. double the running torque
Explanation
A centrifugal pump develops torque approximately proportional to the square of speed, so its torque demand is very small at starting and rises during acceleration. Therefore, starting torque is generally less than running torque.
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