A rotary positive displacement pump (PDP) is being used to supply water to a piping system ___

A rotary positive displacement pump (PDP) is being used to supply water to a piping system.

The PDP is driven by an AC induction motor.

The initial parameters are:

System pressure = 500 psig
PDP flow rate = 50 gpm
PDP motor current = 40 amps

After several hours, the PDP motor speed is increased such that the new PDP flow rate is 100 gpm.

If system pressure does not change, what is the approximate value of the PDP motor current at the 100 gpm flow rate?

A. 80 amps
B. 160 amps
C. 320 amps
D. 640 amps

Show Answer

Answer: A

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