The discharge valve for a radial-flow centrifugal cooling water pump is closed in preparation for starting the pump.
After the pump is started, the pump suction and discharge pressures stabilize as follows:
Pump suction pressure = 5 psig
Pump discharge pressure = 35 psig
With the discharge valve still closed, if the pump speed is doubled, what will be the new stable pump discharge pressure?
A. 65 psig
B. 120 psig
C. 125 psig
D. 140 psig
Show Answer
Answer: C
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