轮机英语【大管甲类】题库

单选题 1分

In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the...

In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause _______ .
  • A. molecular fluid vibration
  • B. energy losses
  • C. wide pressure variations
  • D. mechanical damage to control valves
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1 单选题 1分
Improper maintenance of an automatic auxiliary boiler oil burner could result in_____.
  • A. fuel pump failure
  • B. fan motor failure
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  • D. decreased boiler efficiency
2 单选题 1分
Insufficient air for combustion in a boiler furnace could result in a ______.
  • A. white incandescent flame
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  • C. black stack smoke emission
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3 单选题 1分
Black smoke coming from a boiler can be caused by______.
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  • B. excessively high pressure
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4 单选题 1分
Black smoke coming from a boiler can be caused by_ _______.
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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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