According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and ().
时间:2022-11-10
早期故障是在使用开始后,因为()而产生的故障。Ⅰ.设计与制造缺陷;Ⅱ.磨合不当;Ⅲ.维修不当
高效废气锅炉与现代节能柴油机的匹配不当是废气锅炉烟垢着火呈上升趋势的原因,不属于匹配问题的原因是()。
按直线校中原理校中时,各轴承的连线为()。
The overspeeding of the diesel engine driving an electric generator could cause ().
An interlock in the remote operating valve line stops the valve () when the engine turning gear is engaged.
时间:2022-11-09
The mechanical efficiency of an engine () because losses occur in the form of friction.
In the suction stroke air is induced into the cylinder ()In the compression stroke the air is compressed.
The emulsion of the oil is mainly caused by ().
在测量螺旋桨螺距时,不需测量的参数是()。
废气流速低是废气锅炉烟灰沉积和着火的主要影响参数之一。统计资料证明,设计废气流速低于10m/s者几乎都有着火故障,这是因为()。
赛龙艉轴承材料的缺点是()。Ⅰ.弹性低;Ⅱ.导热性差;Ⅲ.不耐高温;Ⅳ.不耐磨;Ⅴ.寿命低。
The complete assembly of bedplate, A-frames and cylinder block is held together by () to form a rigid structure.
船轴工作轴颈磨损后,经测量表明()超标准时应予以修复。Ⅰ.圆度;Ⅱ.圆柱度;Ⅲ.椭圆度;Ⅳ.法兰径向跳动;Ⅴ.法兰端面跳动。
下列()的情况下增压器转子应进行动平衡试验。Ⅰ.转子变形;Ⅱ.L、M间隙不合格;Ⅲ.更换涡轮叶片;Ⅳ.轴承损坏;Ⅴ.压气机导风轮移位。