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

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

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