[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fy3s_MnPAPCX8PjvJlZ7JVUn0Wg4IEbpQwfraEzyU4Zk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":28,"type":29},[],"2023-12-22 09:32:19",119427682,[8,9,10,11],"直接按下反转起动按钮","必须先按下停止按钮,再按下反转起动按钮","必须先按下停止按钮,再按下正转起动按钮","以上说法都不对",{"courseId":13,"courseImg":14,"courseName":15},"586146715e9c590da421bd39c30bffa5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbb062ff6068e05b64e1dc4486da29b2a.jpg","电气控制技术","在接触器互锁的正反转控制电路时,要使电动机从正转变为反转,正确的操作方法是()",[18,30,39,48,57,66,75,84,93,96],{"answer":19,"createTime":20,"id":21,"options":22,"question":27,"source":28,"type":29},[],"2023-12-22 09:32:18",119427654,[23,24,25,26],"确保安全","增大吸力","容易打开","延长寿命","锚机刹车打开后串入经济电阻是为了使刹车()","v1",0,{"answer":31,"createTime":20,"id":32,"options":33,"question":38,"source":28,"type":29},[],119427659,[34,35,36,37],"立即","延时","风门打开后才可","手柄置零位后才可","送上电源后,锚机控制线路应()工作",{"answer":40,"createTime":20,"id":41,"options":42,"question":47,"source":28,"type":29},[],119427661,[43,44,45,46],"常开;电气","常开;机械","常闭;电气","常闭;机械","异步电动机正反转控制线路,可采用按钮的()辅触头作为()互锁环节",{"answer":49,"createTime":20,"id":50,"options":51,"question":56,"source":28,"type":29},[],119427664,[52,53,54,55],"减小装机容量","提高控制性能","增大调速范围","提高可靠性","电力拖动G-M系统中,采用直流双输出发电机可以()",{"answer":58,"createTime":20,"id":59,"options":60,"question":65,"source":28,"type":29},[],119427669,[61,62,63,64],"释放弹簧弹力","触头弹簧弹力","线圈电磁吸力","永久磁铁斥力","接触器常开触头是靠()作用闭合的",{"answer":67,"createTime":20,"id":68,"options":69,"question":74,"source":28,"type":29},[],119427671,[70,71,72,73],"收起锚链","拉紧锚链","拔锚出土","提锚出水","锚机的工作过程中()阶段的负载转矩基本上保持不变",{"answer":76,"createTime":20,"id":77,"options":78,"question":83,"source":28,"type":29},[],119427677,[79,80,81,82],"短时过载","持续过载","起动","短路","熔断器在电动机()时动作起保护作用",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":28,"type":29},[],119427680,[88,89,90,91],"电磁效应","卡诺原理","热效应","焦耳原理","热继电器是根据()而动作的电器",{"answer":94,"createTime":5,"id":6,"options":95,"question":16,"source":28,"type":29},[],[8,9,10,11],{"answer":97,"createTime":5,"id":98,"options":99,"question":103,"source":28,"type":29},[],119427683,[100,101,102,26],"减少损耗","减小吸力","及时抱闸","锚机刹车线圈的放电回路串入二极管是为了使刹车()"]