When a motor-driven centrifugal pump was started, the motor ammeter reading immediately increased to, and stabilized at, many times the normal operating value.
Which one of the following describes a possible cause for the ammeter response?
A. The pump was started with a fully closed discharge valve.
B. The pump was started with a fully open discharge valve.
C. The pump shaft seized upon start and did not rotate.
D. The pump shaft separated from the motor shaft upon start.
Show Answer
Answer: C
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