A centrifugal bilge pump requires priming （）.<br>A:primarily to lubricate the shaft seals<br>B:due to the inability of this type of pump to lift water to cover the suction (eye) of the impeller<br>C:to initially unload the pump by having its head pressure equal to discharge pressure<br>D:in order to overcome the potential energy of water in the discharge line

A centrifugal bilge pump requires priming （）.
A:primarily to lubricate the shaft seals
B:due to the inability of this type of pump to lift water to cover the suction (eye) of the impeller
C:to initially unload the pump by having its head pressure equal to discharge pressure
D:in order to overcome the potential energy of water in the discharge line

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10244552】个 (题库试题定时更新)