正确答案: A
配合件磨损
题目:活塞运动部件失中的原因主要是()。
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学习资料的答案和解析:
[单选题]柴油机运转中,根据()现象可迅速判断柴油机燃烧室零件是否产生穿透性裂纹。Ⅰ.冷却水压力表指针波动;Ⅱ.冲车时有水珠喷出;Ⅲ.缸壁面有锈痕;Ⅳ.膨胀水柜水位变化;Ⅴ.曲轴箱油位升高。
Ⅰ+Ⅳ+Ⅴ
[单选题]柴油机镀铬气缸套正常磨损率应在()mm/kh范围内。
0.01~0.03
[单选题]当轴系同轴度测量值δ总<δ总max,φ总<φ总max时,表明轴系的()。
同轴度符合要求与否尚不定
[单选题]Exhaust temperature increases in all cylinders, the possible cause may be()(1) increased scavenging air temperature(2) air in fuel pumps and fuel valves(3) fouling of air and gas passages
(1)+(3)
[单选题]The diffuser prevents pressure pulses from one cylinder () another during operation.
interfering with
[单选题]A thrust block is designed to().
transmit the thrust of the propeller to the vessel