正确答案: C

C．横向和纵向

题目：十字头式柴油机应进行活塞运动部件与固定件（）校中。

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学习资料的答案和解析：

[单选题]如果某海区每年发生大风浪的概率Pw=0.25，某船每年经过该海区航行的概率Pv=0.1，该船航行不可靠度为F（t）=0.20，则该船在该海域遇险的概率P（）为。

0.005

[单选题]消除增压器振动的方法首先应是（）。

换新轴承

[单选题]舵杆常见的失效形式中不包括（）。

折断

[单选题]A （）is the foundation of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.

Bedplate

[单选题]A governor automatically controls engine speed by regulating （）.

fuel supply

[单选题]For one or two types of engine,the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through （）.

the crankcase door

[单选题]Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）

Excessive feedwater temperature

[单选题]Camshafts are usually driven by timing gears or （）.

chain drives