Excessive air leakage into the suction side of a centrifugal pump would be indicated by which of the following operational problems?()

A . The pump delivers full capacity when started, but gradually slackens off toan abnormally low flow B . The pump packing gland overheats after short operating periods C . The motor over-current protective device continually shuts the pump down D . Pounding noises can be heard at the pump suction chest

时间:2022-09-27 17:15:20 所属题库:船舶辅助机械题库

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