【名词&注释】
排气阀(exhaust valve)
[单选题]艉轴铜套损坏的主要形式有()。Ⅰ.腐蚀;Ⅱ.裂纹;Ⅲ.过度磨损;Ⅳ.套合松动;Ⅴ.接缝不良。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ
C. Ⅱ+Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅲ+Ⅳ
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学习资料:
[单选题]串联连接系统的可靠度()组成该系统各部件的可靠度。
A. 等于
B. 大于
C. 小于
D. 大于、等于
[单选题]排气阀阀面磨损严重时,采用()修复。
A. 研阀
B. 更换气阀
C. 堆焊
D. 堆焊阀座
[单选题]Before pumping up the crankcase oil,() should be worked by hand to minimize corrosive action on the liners.
A. the indicators
B. the starting valves
C. the cylinder lubricators
D. the turning gear
[单选题]The energy for pushing this piston up can be supplied from (), so that the piston can keep moving up and down.
A. the same piston
B. the piston nearby
C. the other pistons
D. the generators on board
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