正确答案: C
增压器严重喘振
题目:柴油机在下述()情况下不需要停增压器运转。
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学习资料的答案和解析:
[单选题]根据轴系的结构特点,以轴承负荷、轴段内的应力、弯矩、转角等为约束条件,通过优化计算,确定轴承的合理位置,热态下使各轴承的负荷在允许值内且合理分布,轴段内的应力、弯矩、转角也均在允许值内。这一过程称为()。
合理校中
[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]艉轴铜套严重磨损时可采用()方法进行修理。Ⅰ.光车;Ⅱ.打磨;Ⅲ.局部换新;Ⅳ.全部换新;Ⅴ.电镀。
Ⅰ+Ⅲ+Ⅳ
[单选题]油润滑艉轴承首端密封的作用是()。
防止滑油漏入机舱
[单选题]() is made of a boss with separated blades mounted into it.
A variable pitch propeller
[单选题]About half an hour before the engine is required, cooling water at () must be circulated.
the working temperature
[单选题]Each piston stuffing box is provided with two sealing rings and three()
scraper ring
[单选题]The crank-room cover should not be opened until at least () minutes after the engine stops.
fifteen