【名词&注释】
活塞环(piston ring)、填料函(stuffing box)、中心线(center line)、金属环(metal ring)、密封圈(seal ring)
[单选题]Simplex艉轴密封装置采用的密封圈(seal ring)是()。
A. 金属环
B. 活塞环
C. 橡胶环
D. “O”形圈
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学习资料:
[单选题]柴油机在运行中一旦发生连杆螺栓断裂则可能导致()损坏。Ⅰ.活塞、连杆;Ⅱ.缸套;Ⅲ.机架;Ⅳ.曲轴。
A. Ⅰ+Ⅲ+Ⅳ
B. Ⅰ+Ⅱ+Ⅲ+Ⅳ
C. Ⅰ+Ⅱ+Ⅳ
D. Ⅱ+Ⅲ
[单选题]轴系同轴度误差应()。
A. 小于允许值
B. 大于允许值
C. 交点在δmax-φmax三角形内
D. 交点在δmax-φmax三角形外
[单选题]一般来说,轴系中心线的同轴度偏差是由于()造成的。
A. 曲轴过度磨损
B. 主轴承过度磨损
C. 海损事故
D. 艉轴过度磨损
[单选题]目前,大、中型船舶艉轴承首、尾端广泛安装()式密封装置。
A. Simplex
B. 金属环
C. 填料函
D. 活塞环
[单选题]The main function of the lubrication system in to enable () of a film of oil between the moving parts.
A. the information
B. the formation
C. the scatter
D. the frictio
[单选题]() the cylinder walls, the heat passes through them by conduction.
A. When receiving by
B. When received by
C. In order to receiving
D. In order to receive
[单选题]The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust ().
A. gas composition
B. gas temperature
C. pressure
D. timing
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