正确答案: C
be scavenged
题目:It is very necessary that each cylinder () before the charged air is compressed.
查看原题 查看所有试题
学习资料的答案和解析:
[单选题]对于活塞杆下端是方形法兰的机型如B&W,如只需解体活塞杆填料函则不需吊出活塞,在曲轴箱内拆掉填料函的()固定螺栓,用专用夹具夹住(),使整个填料函落在夹具的平板上,进行解体。
内、外圈/活塞杆
[单选题]实测中间轴承负荷的常用方法是()。
顶举法
[单选题]舵杆工作轴颈与舵叶轴承孔同轴度检验前,先将舵杆与舵叶组装在一起,并使()。
舵杆与舵叶法兰结合面贴紧和法兰连接螺栓中至少有4个紧配螺栓
[单选题]Charging-air pressure increases if there is incorrect combustion and drop in the () of the diesel engine.
mechanical efficiency
[单选题]For an ordinary four-stroke engine the exhaust valves open ().
before BDC
[单选题]Low compression results from ().
either A or B