Which one of the following will result in the greatest increase in volumetric flow rate to a system that is currently receiving flow from a positive displacement pump operating at 400 rpm with a discharge pressure of 100 psig?
A. Increase pump speed to 700 rpm.
B. Reduce system pressure to decrease pump discharge pressure to 40 psig.
C. Start a second identical positive displacement pump in series with the first.
D. Start a second identical positive displacement pump in parallel with the first.
Show Answer
Answer: D
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