正确答案: D

适合黏度的透平油或液压油

题目:当液压拉伸器的用油变质时,应当用()来清洗和替代。

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学习资料的答案和解析:

  • [单选题]在高增压柴油机上,排气阀阀盘的温度可达()℃。
  • A.650~800


  • [单选题]船舶舵系是实现船舶()等操纵的航向控制装置。Ⅰ.转向;Ⅱ.前进;Ⅲ.后退;Ⅳ.掉头;Ⅴ.直航。
  • Ⅰ+Ⅳ+Ⅴ


  • [单选题]A: Please tell me the specifications and quantity.B: ()
  • 300 tons of 180 cst fuel oil


  • [单选题]Main bearings are required to support the crankshaft at each ().
  • journal


  • [单选题]The lubricating system for the cylinder walls is different from the bearings in that the oil for former one is supplied in () while that for latter one is ().
  • measured quantity;sufficient


  • [单选题]In a normally operating diesel engine, the main cause of lubricating oil contamination in the crankcase is a result of the ().
  • breakdown of the lubricating oil by dilutio


  • [单选题]Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to ().
  • all of the above


  • [单选题]A simplified construction plan may be included in the ship construction portfolio provided it adequately defines the().
  • areas where special materials are used


  • [单选题]What does a pyrometer measure on a diesel engine? ()
  • Exhaust temperature


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