Thursday, April 20, 2023
问题:链条葫芦应定期加润滑油,但严防油渗进磨擦片内部而失去自锁作用。...
Monday, January 1, 2024
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:接力器回装时,各组缝应用()mm塞尺检查合格。A、0.02B、0.04C、0·05D、0.10...
Monday, January 1, 2024
Tuesday, September 13, 2022
问题:静载试验时,是以主起升机构起吊()倍额定负荷进行。...
Tuesday, September 13, 2022
问题:对于几千瓦以下的小型水轮发电机组,采用()盘车A、人工B、机械C、电动D、自动...
Thursday, April 20, 2023
Saturday, July 15, 2023
问题:当电源两端断开时,电源不送出电流,即I=0 ,电源端电压等于所产生的电动势。...
Wednesday, July 12, 2023
问题:水轮机或发电机的振动可能引起调速器的共振,使调速器工作不稳定或摆...
Tuesday, September 13, 2022
问题:喷灯油筒内的油量不得超过油筒容积的()A、1/4B、1/2C、3/4D、3/5...
Saturday, April 27, 2024
Tuesday, September 13, 2022
问题:离心式水泵吸水管及出水管最低部位开有螺孔,是为了()...
Tuesday, September 13, 2022
问题:高压设备发生室外接地时,工作人员不得靠近故障点4M以内。...
Tuesday, September 13, 2022
Sunday, April 23, 2023
Tuesday, September 13, 2022
问题:螺旋千斤顶有什么优缺点?螺旋千斤顶在检修中有什么用途?...
Tuesday, September 13, 2022
Saturday, July 15, 2023