正确答案: B

The drive

题目：（） for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.

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学习资料的答案和解析：

[单选题]指出下述哪一项不是船舶动力装置的重量性能指标（）。

动力装置的总重量Gz是指动力装置各组成设各重量之和

[单选题]超级汽轮发电系统（STG）是废热利用联合装置，其余热利用装置有（）。Ⅰ.废气/蒸汽联合驱动的涡轮发电机；Ⅱ.空气冷却器；Ⅲ.废气锅炉

Ⅰ+Ⅱ+Ⅲ

[单选题]气缸盖冷却侧裂纹一般多产生在（）。Ⅰ.钻孔处；Ⅱ.钻孔之间；Ⅲ.冷却水道筋的根部；Ⅳ.冷却水道底部；Ⅴ.有应力集中处。

B．Ⅰ＋Ⅲ＋Ⅴ

[单选题]舵系中心线与轴系中心线位置度检验方法采用（）。

专用量具

[单选题]Diesel oil may be used to cool （） of a diesel engine.

fuel valve

[单选题]Each cylinder has one starting valve which is usually opened by air pressure and closed by （）

spring force

[单选题]The loss of （） from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.

cooling water

[单选题]While engine is in operation the piston moves up and down, thus causing the rotation of the （）.

crankshaft

[单选题]Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, could result in （）

increased fuel consumption