轮机英语【大管甲类】题库

单选题 1分

When the electrolyte level of a lead-acid storage battery has decreased due to normal evaporation, t...

When the electrolyte level of a lead-acid storage battery has decreased due to normal evaporation, the level should be reestablished by adding ______.
  • A. distilled water only
  • B. sulfuric acid only
  • C. a weak solution of sulfuric acid and distilled water
  • D. a strong solution of sulfuric acid and distilled water
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1 单选题 1分
____ is (are) not supplied by main switchboard directly.
  • A. Steering gear and windlass
  • B. Navigation light and radio power panel
  • C. Electric navigation device power box
  • D. Daily fresh water pump
2 单选题 1分
____ is not a part of the main switchboard on board.
  • A. Busbar
  • B. Load panel of main generator
  • C. Paralleling panel
  • D. Shore connection box
3 单选题 1分
____ is not a part of the main switch board.
  • A. Control panel of main generator
  • B. Control panel of emergency generator
  • C. Paralleling panel
  • D. Load panel of main generator
4 单选题 1分
____ is not installed on the main switchboard.
  • A. Ammeter and changeover switch
  • B. Power factor meter
  • C. Synchroscope
  • D. Reverse sequence relay (逆序继电器)
5 单选题 1分
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轮机英语【大管甲类】-题库

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相关试卷

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
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