正确答案: A
>0
题目:某曲柄的两主轴承在水平平面内位置偏右,曲轴轴线呈右拱形,则其Δ-()。
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学习资料的答案和解析:
[单选题]假设某一中央冷却系统中设有三台循环水泵,船舶航行在温带水域若只要两台水泵正常工作就能满足冷却需要,则三台水泵从可靠性角度看就成为()。Ⅰ.并联系统;Ⅱ.串联系统;;Ⅲ.表决系统
仅Ⅲ对
[单选题]不属于吊缸检修的技术要求有()。
测量轴承间隙
[单选题]在拆装大型低速柴油机的主轴承下瓦时,()的操作是错误的。
为了减少工作量,应同时拆下两个相邻的主轴承下瓦
[单选题]主机底脚螺栓全部装好上紧后,可以粗略检验底脚螺栓上紧程度的方法是()。
用小锤敲击螺栓检验
[单选题]增压器自带油泵工作的可靠性与其安装质量有关,安装时应保证()。
D.油泵轴线与转子轴线同轴
[单选题]Excessive clearances in the main or crank-pin bearings will sometimes be indicated by () before any bearing knock is heard.
loss of pressure in the lubricating system
[单选题]Opening of the cylinder () will admit compressed air into the cylinder.
start valve
[单选题]To avoid scavenge fires occurring the engine timing and equipment maintenance ().
should be correctly carried out
[单选题]The rate of fuel injection in a diesel engine cylinder depends primarily on ().
the size of the holes in the fuel nozzle