[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fRGES65tmmDkMuaJeUprJ2dhqOeRHX2dS2B3sP2ITc2k":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2026-05-28 06:58:51",327935586,[8,9,10,11],"成平方倍减小","成比例增大","不变","成比例减小",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},11,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","4cb3ac36caa64ef183a86500d2c43d4d","章节测试","在异步电机中,如果电源电压降低,起动转矩将如何变化",[21,32,41,48,57,65,68,77,87,96],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],327935581,[25,26,27,28],"T = 0.64TN","T > TN","T = TN","T = 0.8TN","一台三相感应电动机拖动额定恒转矩负载运行,若电源电压下降20%,此时电机的电磁转矩( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],327935582,[36,37,38,39],"大于0小于1","0","不确定","1","对于一台感应电机,如果使起动转矩达到最大,此时临界转差率sm为()",{"answer":42,"createTime":5,"id":43,"options":44,"question":47,"source":30,"type":31},[],327935583,[45,10,46],"增大","减少","异步电动机负载转矩不变的情况下调速,当转速下降时,电动机输出功率会( )",{"answer":49,"createTime":5,"id":50,"options":51,"question":56,"source":30,"type":31},[],327935584,[52,53,54,55],"转速与电磁功率之间的关系","转速与输出转矩之间的关系","转速与电磁转矩之间的关系","转速与输出功率之间的关系","感应电动机的机械特性指的是()",{"answer":58,"createTime":59,"id":60,"options":61,"question":64,"source":30,"type":31},[],"2026-05-21 11:15:18",327935585,[45,62,10,63],"减小","先增大后减小","在异步电机中,如果转子电阻增加,起动转矩将如何变化",{"answer":66,"createTime":5,"id":6,"options":67,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":69,"createTime":59,"id":70,"options":71,"question":76,"source":30,"type":31},[],327935587,[72,73,74,75],"Te与n反向,n<ns","Te与n同向,n>ns","Te与n反向,n>ns","Te与n同向,n<ns","异步电机工作在电动状态时电机参数的关系是( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":86},[],327935588,[81,82,83,84],"最大转矩点","启动转矩点","额定转矩点","理想空载转速点","异步电机的机械特性曲线上的关键点包括哪些",1,{"answer":88,"createTime":59,"id":89,"options":90,"question":95,"source":30,"type":86},[],327935589,[91,92,93,94],"电源电压","定子电阻","转子电阻","负载转矩","下列哪些因素会影响异步电机的机械特性曲线",{"answer":97,"createTime":98,"id":99,"options":100,"question":103,"source":30,"type":104},[],"2026-03-25 07:39:21",327938980,[101,102],"正确","错误","异步电机的机械特性曲线是一条直线",3]