问题:能使带电物体产生相斥或者相吸作用力的范围,叫电场。...
Tuesday, September 13, 2022
问题:用电设备的工作制分为()工作制()工作制()工作制。...
Friday, September 16, 2022
Monday, December 18, 2023
问题:电压互感器的误差与二次回路的阻抗有关,并伴随着阻抗值的变化在()A、阻抗值增大时,误差减少B、阻抗值减少时,误差随之增大C、阻抗值增大、减小都超出一定值后,误差才超出规定。...
Thursday, November 23, 2023
Monday, December 18, 2023
Thursday, December 21, 2023
问题:电气设备的操作状态分为()状态,()状态,()状态,()状态。...
Friday, September 16, 2022
Friday, September 8, 2023
Tuesday, September 13, 2022
Monday, December 18, 2023
Thursday, January 11, 2024
Tuesday, October 10, 2023
Saturday, March 4, 2023
问题:介质损耗测量时,若被试物绝缘内部产生热量越多,则说明介质损失越大。...
Sunday, January 7, 2024
Thursday, January 11, 2024
问题:在易燃、易爆场所带电作业时,只要注意安全,防止触电,一般不会发生危险。...
Thursday, November 23, 2023
问题:安装调整碳刷时,其电刷接触面应与()的弧度相吻合,接触面积不应小于单个碳刷截面积的()...
Tuesday, July 11, 2023
问题:水工建筑物安全监测的主要监测项目有()A、变形监测B、渗流监测C、应力应变检测D、运行水位监测...
Wednesday, August 16, 2023
Friday, March 1, 2024