The discharge head of a centrifugal pump will vary directly with the （）.<br>A:change in impeller diameter<br>B:square of the impeller diameter<br>C:cube of the impeller diameter<br>D:impeller efficiency for large changes in the size of the impeller

The discharge head of a centrifugal pump will vary directly with the （）.
A:change in impeller diameter
B:square of the impeller diameter
C:cube of the impeller diameter
D:impeller efficiency for large changes in the size of the impeller

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:【10252937】个 (题库试题定时更新)