正确答案: C

40

题目：中速柴油机的最低稳定转速不高于标定转速的（）%。

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学习资料的答案和解析：

[单选题]船舶动力装置往往以推进装置的类型进行分类，可分为（）。

蒸汽动力装置、燃气动力装置、核动力装置

[单选题]液压拉伸器活塞顶部设有泄放旋塞，其主要的作用是（）。

加压前用来泄放油中的空气

[单选题]某曲柄的两主轴承在水平平面内位置偏左，曲轴轴线呈左拱形，则其Δ-（）。

＜0

[单选题]废气涡轮增压器使柴油机的功率增加（）倍。

1

[单选题]铁梨木轴承产生（）时应予以部分或全部换新。

变形与开裂

[单选题]In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the （）.

gudgeon pi

[单选题]Low compression of diesel engine may result from （）

a worn cylinder

[单选题]The pump has a constant stroke and the amount of fuel delivered is regulated by rotating （） which has a specially arranged helical groove cut into it.

the pump plunger

[单选题]Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.

quality of the oil