A motor-driven centrifugal pump exhibited indications of pump failure while being started.
Which one of the following pairs of observations indicate that the pump failure is a sheared impeller shaft?
A. Excessive duration of high starting current and motor breaker trips.
B. Excessive duration of high starting current and no change in system flow rate.
C. Lower than normal running current and motor breaker trips.
D. Lower than normal running current and no change in system flow rate.
Show Answer
Answer: D
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