【名词&注释】
热平衡(heat balance)、水压试验(hydrostatic test)、动力装置(power plant)、气缸套(cylinder liner)、曲轴箱(crankcase)、填料函(stuffing box)、活塞杆(piston rod)、轻柴油(light diesel oil)、轮机员(engineer)、活塞环槽(piston ring groove)
[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. 活塞环弹力检验
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学习资料:
[单选题]在进行船舶动力装置设计时,为了找出合理利用余热的途径,必须考虑()。Ⅰ.整个船舶的能量平衡;Ⅱ.各个耗能设备的热平衡
A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ十Ⅱ
D. Ⅰ或Ⅱ对
[单选题]液压拉伸器的液压系统中应使用纯净的()。
A. 液压油
B. 轻柴油(light diesel oil)
C. 润滑油
D. 气缸油
[单选题]液压拉伸器的液系统中应使用纯净的()作为工作用油。Ⅰ.液压油;Ⅱ.润滑油;Ⅲ.高级润滑油;Ⅳ.气缸油;Ⅴ.透平油。
A. Ⅰ+Ⅴ
B. Ⅰ+Ⅲ
C. Ⅱ+Ⅲ+Ⅳ
D. Ⅰ+Ⅳ
[单选题]对于活塞杆(piston rod)下端是方形法兰的机型如B&W,吊缸时,整个填料函必须随同活塞杆(piston rod)一起吊出去,操作时轮机员(engineer)只要在()内拆掉填料函的()固定螺栓。
A. 扫气箱/内圈
B. 曲轴箱/外圈
C. 扫气箱/外圈
D. 曲轴箱/内圈
[单选题]航行时,水润滑艉轴承填料密封装置应将压盖螺栓(),停航时将压盖螺栓()。
A. 旋松/旋松
B. 旋松/上紧
C. 上紧/上紧
D. 上紧/旋松
[单选题]铁梨木舵承发生()时应更换。
A. 过度磨损
B. 变形
C. 开裂
D. 裂纹
[单选题]The external circumference of a pair of main bearing shells is slightly () that of the bore of the housing which receives them Whats the meaning of “that” in the sentence above?
A. less than
B. lighter than
C. larger than
D. smaller tha
[单选题]The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?()
A. main bearing shells
B. main bearing
C. steel
D. bearing metal
[单选题]A crankshaft whose center of gravity coincides with its center line is said to be ().
A. dynamically balanced
B. statically balanced
C. counter balanced
D. resonantly balanced
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