（） for the camshaft gear train is taken from a spur gear w

【名词&注释】

排水量(displacement)、船舶动力装置(marine power plant)、光学仪器法、汽轮发电、中心线位置、总重量(total weight)

[单选题]（） for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.

A. The driven gear
B. The drive
C. The grease
D. The lubricating oil

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学习资料：

[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（）。

A. 主机的单位重量gm是指主机单位有效功率的重量
B. 主机的单位重量gz是指主机单位有效功率的动力装置重量
C. 动力装置的总重量^{(total weight)}Gz是指动力装置各组成设各重量之和
D. 装置的相对重量αz是指动力装置总重量^{(total weight)}与船舶满载排水量之比

[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

A. Ⅰ+Ⅲ
B. Ⅰ+Ⅱ
C. Ⅱ+Ⅲ
D. 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。

A. A．Ⅰ＋Ⅲ＋Ⅳ
B. B．Ⅰ＋Ⅲ＋Ⅴ
C. C．Ⅱ＋Ⅲ＋Ⅳ
D. D．Ⅰ＋Ⅲ

[单选题]舵系中心线与轴系中心线位置度检验方法采用（）。

A. 专用量具
B. 光学仪器法
C. 专用量具或光学仪器法
D. 拉线法

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

A. cylinders
B. exhaust valves
C. pistons
D. fuel valve

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

A. nuts and bolts
B. new joints
C. spring force
D. sealing ring

[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.

A. lubricating oil
B. compressed air
C. cooling water
D. sealing ring

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

A. crankcase
B. slipper
C. cam housing
D. crankshaft

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

A. increased fuel consumption
B. increased feed water consumption
C. fuel pump failure
D. combustion control system failure

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