正确答案: A
远洋及近海商船
题目:舵系分为单舵系和双舵系。一般()为单桨单舵。
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学习资料的答案和解析:
[单选题]当十字头式柴油机缸径<700mm时,在未装活塞环的条件下,活塞位于近上、下止点位置时,活塞裙部减磨环与气缸内孔单边最小间隙应不小于()。
该处总间隙的30%
[单选题]换新薄壁轴瓦时,()的操作是错误的。
D.通过修刮瓦口调节瓦口扩张量
[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]Factor influencing the position of the interface between the liquid seal and the oil in a purifier is ().
None of the above is wrong
[单选题]The compressed air is supplied by () to the air reservoirs.
compressors
[单选题]The high pressure in fuel injection system of the diesel engine is produced by the ().
injector pump