[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBqybh6FGnOmvQ2yuNM1hN8km9HK3ico2Xs00_t2LDUw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-11-26 16:30:24",242534187,[8,9,10,11],"断开","半制动","中立","全制动",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},336,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","exam_167126096","安全单选练习","机车乘务员配合电务车载设备人员进行车上检测作业时,机车在启机状态下,严禁机车乘务员擅离机车,并确认机车控制开关在( )位",[21,26,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],242534188,[30,31,32,33],""行车不施工,施工不行车"",""行车不施工,施工可行车"",""行车可施工,施工不行车"",""行车可施工,施工可行车"","上道作业应贯彻执行"安全第一、预防为主、综合治理"的方针,坚持( )的原则",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],242534189,[39,40,41,42],"120","80","160","100","高速铁路利用接触网作业车或专用车辆进行接触网巡视或检测而邻线未封锁时,应在办理邻线列车限速( )km\u002Fh 及以下手续后进行",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],242534190,[48,49,50,51],"5","2","4","3","铁路交通事故中,造成( )人以上10人以下死亡,或者10人以上50人以下重伤,或者1000万元以上5000万元以下直接经济损失的,为较大事故",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],242534191,[57,58,59,60],"进入罐内","确认罐盖关闭良好","明火接近","敲打罐体","检查装有易燃易爆等危险货物的罐车时,下列行为允许的是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],242534192,[66,67,68,69],"黑","蓝","绿","白","安全色与对比色搭配使用时,安全色中的红色搭配的对比色为( )色",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],242534193,[75,76,77,78],"500m","1 km","2km","3 km","大气中因悬浮的水汽凝结使能见度低于( )的天气现象,气象学称为雾",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":24,"type":25},[],242534194,[84,85,86,87],"防冻","防潮","防滑","绝缘","在冰、雪、霜、雨等天气时,轨道作业车的爬梯和平台应采取( )措施",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":24,"type":25},[],242534195,[93,94,95,96],"受力","滑移","折弯","固定","高处作业人员在曲线区段调整接触网悬挂时,要采取防止线索( )后备保护措施",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":24,"type":25},[],242534196,[102,103,104,105],"边缘","安全标线","盲道","安全黄线","乘务员在站台候车时,必须站在站台( )以内的指定位置等候"]