轮机英语【大管甲类】题库

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In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low alloy st...

In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low alloy steels because ( ).
  • A. the beveled edges of the intake valves provide for self-centering during seating
  • B. intake valves utilize satellite-coated valve seat inserts which reduce wear
  • C. the volume of air passing through intake valves is less than the volume of air passing through exhaust valves
  • D. intake valves are less affected to the corrosive action of exhaust gases
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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
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