问题:若工作负责人必须长时间离开工作现场时,原工作票签发人变更工作负责...
Saturday, September 17, 2022
问题:磁性材料按其特性不同,分为软磁材料和硬磁材料两大类,硬磁材料的主...
Friday, September 16, 2022
问题:喷油嘴上的燃油出口将多余的燃油通过()返回油箱。...
Tuesday, September 13, 2022
问题:要保证增安型电气设备安全可靠运行,必须严格控制它的各部分温度。...
Tuesday, September 13, 2022
问题:对于利用空气喷吹作用而雾化的情况来说,与空气的喷吹速度,即喷吹用...
Sunday, September 11, 2022
问题:炮响后,因详细检查是否有()单必须等待()min后,方可回到()...
Friday, September 16, 2022
问题:在检查高压设备的接地故障时,室外不得接近接地点()m以内。...
Tuesday, September 13, 2022
Friday, September 16, 2022
问题:隔爆外壳因焊缝开焊、裂纹、严重变形长度超过()mm,同时凹凸深度...
Tuesday, September 13, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
问题:漏电断路器在被保护电路中有漏电或有人触电时,零序电流互感器就产生...
Friday, September 16, 2022
问题:集中补偿,这种补偿方式是将电力电容器安装在变配电所内。...
Thursday, September 15, 2022
Thursday, September 15, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
问题:由电流的热效应、化学效应、机械效应等效应对人造成的伤害称为()...
Tuesday, September 13, 2022
问题:高压电气设备无论绝缘与否,均应采取屏护或其它防止接近的措施。...
Tuesday, September 13, 2022
问题:盖()盖前,须先由分场领导检查确实无人、工具和其他物件留在汽缸或...
Tuesday, September 13, 2022
问题:额定转子电流I<sub>b</sub>表示在额定千伏安出力时转...
Friday, September 16, 2022