工种问题选项A选项B选项C选项D答案难易程度HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl3$_ctl0','')"编辑电工作业1电器设备未经验电，一律视为（）有电，不准用手触及无电，可以用手触及无危险电压AEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl3$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl4$_ctl0','')"编辑电工作业2新装和大修后的低压线路和设备对地绝缘电阻不应小于（）1MΩ0.1MΩ0.5MΩCEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl4$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl5$_ctl0','')"编辑电工作业3变压器停电退出运行，首先应（）断开各负荷断开高压侧开关开低压侧开关AEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl5$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl6$_ctl0','')"编辑电工作业4电缆从地下引至电杆、设备、墙外表面或屋外行人容易接近处，距地面高度（）以下的一段需穿保护管或加装保护罩1ｍ1·5ｍ2ｍCEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl6$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl7$_ctl0','')"编辑电工作业5.1ｋV及以下架空线路通过居民区时，导线与地面的距离在导线最大弛度时，应不小于（）5ｍ6ｍ7ｍBEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl7$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl8$_ctl0','')"编辑电工作业6隔离开关的主要作用是（）断开负荷电路断开无负荷电路断开短路电流BEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl8$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl9$_ctl0','')"编辑电工作业在带电设备周围进行测量工作时，工作人员应使用（）尺钢卷尺线加强型皮尺AEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl9$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl10$_ctl0','')"编辑电工作业当某一电力线路发生接地，距接地点愈近，跨步电压（）不变愈低愈高CEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl10$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl11$_ctl0','')"编辑电工作业在容器内工作时，照明电压应选用（）伏122436AEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl11$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl12$_ctl0','')"编辑电工作业测量变压器绕组对地绝缘电阻值接近零值，说明该绕组（）受潮正常绝缘击穿或接地短路CEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl12$_ctl1','')"删除HYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl13$_ctl0','')"编辑电工作业电气设备保护接地电阻越大，发生故障时漏电设备外壳对地电压（）越低不变越高CEHYPERLINK"javascript:__doPostBack('MyDataGrid$_ctl13$_ctl1'