[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fkseLc6T1gyLW4j2VUNQ2KujizL2A2a4aZ3iqHslWOkM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-05-23 23:41:33",190382376,[8,9,10,11],"1.5","2.5","3","3.5",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},62,"96aefdced11cc0687437f1ff39b24e57","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd4ceb085e7fb614315a0999b89440b7.jpg","电梯维修与保养","4bf71abd5db24400924cb530aad070bc","项目3测验","导轨支架安装要求,每个导轨支架中间间距应小于或等于( )m",[21,32,41,50,59,62,71,80,89,99],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],190382372,[25,26,27,28],"导向","曳引","重量平衡","轿厢","导轨、导靴和导轨架组成的系统称为( )系统","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],190382373,[36,37,38,39],"30","50","60","70","轿厢与对重间的最小距离为( )mm",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],190382374,[45,46,47,48],"安全回路有问题","门锁回路有问题","召唤回路有问题","制动器有问题","电梯只有慢车,没有快车,可能的原因是:( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],190382375,[54,55,56,57],"强迫减速开关失效","终端限位开关失效","终端极限开关失效","平层感应器失效","电梯出现了超越行程终端位置的故障.现象一:电梯在到达顶层时没有减速;现象二:电梯未停车继续上行;现象三:电梯冲顶前某安全保护开关动作后停止运行.最终查明是某些开关失效,并发现强迫减速开关滚轮中心位置距离导轨侧面为150mm,请根据以上现象回答下列问题:⑴下列造成现象一的主要原因是( )",{"answer":60,"createTime":5,"id":6,"options":61,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],190382377,[66,67,68,69],"50mm","30mm","40 mm","20mm","层门应具有自动迫紧的功能,当用150N人力作用于开门方向时,开门间隙应小于( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],190382378,[75,76,77,78],"1\u002F4","1\u002F3","1\u002F2","2\u002F3","垂直滑动门层门开始关闭之前,轿门至少已关闭到( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],190382379,[84,85,86,87],"铰链","弹簧","杠杆","电磁","层门自闭装置是防坠落保护的重要部件,有( )式和重锤式两种",{"answer":90,"createTime":5,"id":91,"options":92,"question":98,"source":30,"type":31},[],190382380,[93,94,95,96,97],"单独控制电梯","并联控制电梯","消防电梯","信号控制电梯","电梯处于司机操作状态","一幢楼有两台电梯,每个楼层都只有一个呼梯召唤按钮.故障现象是:①某个层站有时外召无显示,同时电梯也无法召梯;②有时电梯有运行箭头且自动关门,但不能启动电梯;③正常情况下电梯在没有人使用时应停在待命运行的层站,但在故障时两台电梯总在运行,且每次都运行到三楼后停下来开门,等待一会后电梯再关门继续运行.请分析此例并回答以下问题:⑴一幢楼有两台电梯,每个楼层都只有一个呼梯召唤按钮,这是因为这两台电梯是:( ). [单选]",{"answer":100,"createTime":101,"id":102,"options":103,"question":108,"source":30,"type":31},[],"2025-05-23 23:41:34",190382381,[104,105,106,107],"±30","±15","±10","±20","对于额定速度不大于6.0m\u002Fs的电力驱动曳引式电梯,在运行时电梯轿厢的平层保持精度宜在( )mm范围内"]