正确答案: C
Ⅲ+Ⅳ
题目:检验发现轴系的同轴度不符合要求,为了调整轴系状态,可采用()的修理方案。Ⅰ.调节第一道中间轴承位置;Ⅱ.调节各道中间轴承位置;Ⅲ.偏心镗削艉轴承;Ⅳ.改变主机位置;Ⅴ.改变局部中间轴承位置。
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学习资料的答案和解析:
[单选题]主机吊缸时,对大型超长冲程的气缸套,用说明书规定的专用工具和起吊方法,缸套从缸内拔出后,有时会出现机舱空间的高度不够,不能被顺利吊走。此时挡住缸套的是(),应对措施可以是()。
该缸的缸头螺栓/拆掉该缸全部缸头螺栓
[单选题]The fuel injector injects a fine spray of fuel into the hot air and combustion (), producing much high pressure in the gases.
takes place
[单选题]Clearance volume scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished ().
during the valve overlap period
[单选题]Generating tubes in waste heat boilers are finned to ().
increase the rate of heat transfer
[单选题]The main purpose of the piston oil scraper rings is to ().
reduce the amount of lube oil burned in the combustion chamber