[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fDU20XY-gnldJDmel4S1KIjOacOSsQdm45bUDLk15LmM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":29,"type":30},[],"2025-04-21 14:44:29",183970247,[8,9,10,11],"电动式时间继电器的延时时间不受电源电压波动及环境温度变化的影响","行程开关的作用是将机械行走的长度用电信号传出","热继电器是利用双金属片受热弯曲而推动触点动作的一种保护电器,它主要用于线路的速断保护","中间继电器实际上是一种动作与释放值可调节的电压继电器",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},119,"0a45f833e03b25a3614803caf48b0d69","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa32133383fb6f09ed3475baecd243f2c.png","低压电工作业","exam_152871159","课堂模拟考","下列说法中,正确的是 ( )",[21,31,39,47,55,63,71,79,82,90],{"answer":22,"createTime":5,"id":23,"options":24,"question":28,"source":29,"type":30},[],183970240,[25,26,27],"等于","远大于","远小于","选择电压表时,其内阻(B)被测负载的电阻为好","v1",0,{"answer":32,"createTime":5,"id":33,"options":34,"question":38,"source":29,"type":30},[],183970241,[35,36,37],"允许输出","推动电机","允许输入","电动机在额定工作状态下运行时,()的机械功率叫额定功率.( )(1.0)",{"answer":40,"createTime":5,"id":41,"options":42,"question":46,"source":29,"type":30},[],183970242,[43,44,45],"灭弧","温度","过载","熔断器的额定电压,是从 ( ) 角度出发,规定的电路最高工作电压",{"answer":48,"createTime":5,"id":49,"options":50,"question":54,"source":29,"type":30},[],183970243,[51,52,53],"明显标志","警示标志","盖板","暗装的开关及插座应有().( )(1.0)",{"answer":56,"createTime":5,"id":57,"options":58,"question":62,"source":29,"type":30},[],183970244,[59,60,61],"感应","接触","直击","雷电流产生的()电压和跨步电压可直接使人触电死亡.( )(1.0)",{"answer":64,"createTime":5,"id":65,"options":66,"question":70,"source":29,"type":30},[],183970245,[67,68,69],"两相","三相","单相","装设接地线,当检验明确无电压后,应立即将检修设备接地并 ( ) 短路",{"answer":72,"createTime":5,"id":73,"options":74,"question":78,"source":29,"type":30},[],183970246,[75,76,77],"红底白字","白底绿字","白底红字","&quot;禁止合闸,有人工作&quot;的标志牌应制作为( )",{"answer":80,"createTime":5,"id":6,"options":81,"question":19,"source":29,"type":30},[],[8,9,10,11],{"answer":83,"createTime":5,"id":84,"options":85,"question":89,"source":29,"type":30},[],183970248,[86,87,88],"烘干好后就可","不允许","允许","对电机各绕组的绝缘检查,如测出绝缘电阻为零,在发现无明显烧毁的现象时,则可进行烘干处理,这时()通电运行.( )(1.0)",{"answer":91,"createTime":5,"id":92,"options":93,"question":96,"source":29,"type":30},[],183970249,[94,95,45],"短路","欠压","当空气开关动作后,用手触摸其外壳,发现开关外壳较热,则动作的可能是 ( )"]