A motor-driven centrifugal pump is operating in an open system with its discharge valve throttled to 50 percent.
How will the pump be affected if the discharge valve is fully opened?
A. Total developed head decreases, and motor current decreases.
B. Total developed head increases, and available net positive suction head decreases.
C. The potential for pump cavitation decreases, and pump differential pressure decreases.
D. Available net positive suction head decreases, and pump differential pressure decreases.
Show Answer
Answer: D
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