单选题Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be （）.Aone size smaller than the pump suction nozzleBthe same size as the pump suction nozzleCone size larger than the pump suction nozzleDinstalled with a short radius elbow at the pump
单选题
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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