【名词&注释】
连接件(connector)、排气阀(exhaust valve)、螺丝刀(screwdriver)
[单选题]在主机吊缸检修的组装过程中,经常会有连接件的螺栓孔不对中,使螺栓装不上去。尤其对粗重的管件,如起动空气管与缸头侧面的连接、排烟管与排气阀的连接等。既不损伤管件又有效的应对措施是()。
A. 用粗撬杠撬
B. 用手拉葫芦吊拉
C. 松开管件另一端法兰的连接螺栓
D. 用螺丝刀或细杆插入螺栓孔扳
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学习资料:
[单选题]Valve gear knocks are more easily located while the engine ().
A. is running
B. stops
C. is repaired
D. lacks of oil
[单选题]Lubricating oil should be changed on a heavy duty diesel engine when().
A. it gets dark in color
B. a sample rubbed between fingers feels thin
C. it has been in use for a specified interval
D. it no longer supports combustio
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