【名词&注释】
水压试验(hydrostatic test)、滚动轴承、增压器(turbocharger)、气缸套(cylinder liner)、中心线(center line)、活塞环槽(piston ring groove)、活塞环弹力(elasticity of piston ring)
[单选题]It is important that the water () very often as this can lead to increased deposits.
A. not be changed
B. be changed
C. should not be changed
D. should be changed
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学习资料:
[单选题]船上吊缸检修中一般不需进行()。
A. 气缸盖、气缸套的0.7MPa水压试验
B. 气缸套、活塞环、活塞环槽(piston ring groove)的磨损测量
C. 天地间隙、搭口间隙的测量
D. 活塞环弹力(elasticity of piston ring)检验
[单选题]若已知曲柄的轴线状态呈塌腰形,则其两主轴承高度必然()于相邻轴承,测得的臂距差为()值。
A. 低/正
B. 低/负
C. 高/正
D. 高/负
[单选题]拆下来的增压器滚动轴承零件应该()。Ⅰ.浸泡在干净的透平油中;Ⅱ.用蜡纸包好放置;Ⅲ.用垫块垫平平放。
A. Ⅰ或Ⅲ
B. Ⅱ+Ⅲ
C. Ⅱ或Ⅲ
D. Ⅰ或Ⅱ
[单选题]轴系中心线的偏差度应()。
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]当铁梨木艉轴承产生裂纹或开裂时,可采用()方法修理。
A. 换新
B. 局部换新
C. 上、下瓦对调
D. 换新或局部换新
[单选题]In the event of the cylinder starting valve leakage () would pass into the air pipes and ignite the oil deposited.
A. cooling water
B. vapor from the boiler
C. starting air
D. hot gase
[单选题]“Stand by engine” means ().
A. prepare to stop the engine
B. assemble an engine on its bedplate
C. make an engine ready for starting
D. make an engine run steadily
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