正确答案: C
堆焊
题目:排气阀阀面磨损严重时,采用()修复。
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学习资料的答案和解析:
[单选题]已知某船排水量为2OOO0t,主机有效功率为10O00kW,主机重量为350t,动力装置总重量为8O0t,则该船动力装置的单位重量为()kg/kW。
80
[单选题]贮备可以提高可靠性,它和其他提高可靠性方法的原则区别,在于可使系统的可靠性()部件本身的可靠性。
高于
[单选题]拆装螺母时,不符合安全操作规程的是()。
一手抓住固定物
[单选题]引起增压器振动的原因有()。Ⅰ.轴承损坏;Ⅱ.转子弯曲变形;Ⅲ.转子冷却不良;Ⅳ.转子不平衡;Ⅴ.油泵安装不良。
Ⅰ+Ⅱ+Ⅳ
[单选题]A common trouble with the fuel pump plunger or fuel valve spindle is ().
oil leakage
[单选题]It is very important that each cylinder should be () scavenged before the charged air is compressed.
respectively
[单选题]() the cylinder walls, the heat passes through them by conduction.
When received by
[单选题]Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during ().
the compression stroke
[单选题]A magnetic strainer is used in the diesel engine reduction gear oil system to remove small particles of().
iron or steel