Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be （）.<br>A:one size smaller than the pump suction nozzle<br>B:the same size as the pump suction nozzle<br>C:one size larger than the pump suction nozzle<br>D:installed with a short radius elbow at the pump

Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be （）.
A:one size smaller than the pump suction nozzle
B:the same size as the pump suction nozzle
C:one size larger than the pump suction nozzle
D:installed with a short radius elbow at the pump

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