轮机英语【轮机长】题库

单选题 1分

When a hydraulic vane pump is working, which of the following is in contact with the vanes? I. the r...

When a hydraulic vane pump is working, which of the following is in contact with the vanes? I. the rotor; II. the internal surface of the housing; III. the external surface of the housing.
  • A. I only
  • B. II only
  • C. I and II
  • D. I, II and III
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第一章 船舶主推进装置
第二章 船舶辅助机械
第三章 船舶电气和自动化
第四章 船舶轮机管理业务
第五章 国际公约、规则
专项训练一
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