轮机英语【大管甲类】题库

单选题 1分

The crankcases of many diesel engines are kept under a slight vacuum to ( ) .

  • A. improve fuel economy
  • B. increase the air charge velocity
  • C. reduce the risk of explosion
  • D. all of the above
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2 单选题 1分
The majority of ships around the world continue to be powered exclusively by _____.
  • A. steam engines
  • B. diesel engines
  • C. electric motors
  • D. gas turbines
3 单选题 1分
The energy associated with molecules is known as ____.
  • A. kinetic energy
  • B. potential energy
  • C. mechanical energy
  • D. thermal energy
4 单选题 1分
Thermal energy in transition is also referred to as______.
  • A. heat
  • B. power
  • C. horsepower
  • D. foot-pound
5 单选题 1分
Which of the following forms of energy is demonstrated through the process of combustion?
  • A. Chemical energy
  • B. Mechanical energy.
  • C. Thermal energy.
  • D. Electrical energy.
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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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