问题:低压刀开关不能带负荷操作,仅起隔离电源的作用,提供一个明显的断开...
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
问题:1000A以下的空气开关不具有的是()A、工作触头B、灭弧触头C、副触头D、辅助触头...
Thursday, December 7, 2023
问题:异步电动机转子的转速n与旋转磁场转速nl之间的数量关系是()...
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
问题:配电室在巡视时发现照明灯不亮,因有手电筒代用,不必更换灯泡。...
Thursday, September 15, 2022
问题:眼看检查是指检查时查看()是否整洁、有无锈蚀,润滑是否正常。...
Saturday, September 10, 2022
Tuesday, January 16, 2024
问题:同步电动机的定子铁芯由()冲压的扇形片迭装而成。...
Saturday, September 10, 2022
问题:任一台机组要发信号时,只须与控制盘盘顶事故音响小母线连接即可。...
Tuesday, September 13, 2022
Saturday, September 10, 2022
Thursday, December 7, 2023
问题:启闭机故障检查时可大慨确定发出声音的()、声音的高低,然后分桁该...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:水泵叶轮中心安装高程加上叶轮中心至定子下法兰平面的距离,就是()...
Saturday, September 10, 2022
问题:滑动式行走支承装置分为木滑块、金属滑块、()和新型滑道材料。...
Saturday, September 10, 2022
Saturday, September 10, 2022