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【判断题】
捣固机器操作时,应避开防爬器、轨距杆、支撑等障碍物
A. 对
B. 错
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捣固机器作业中,操作手应密切注意机器运转情况和线路状态
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B. 错
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捣固作业发生故障时,应立即停机,用手压泵急速提镐下道进行处理,严禁在线路上停机处理故障
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进行绝缘接头拆卸作业时,需通号人员配合,长柄工具应有绝缘套,作业中不得将两股钢轨搭接
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进行锯轨和打磨时,非操作人员应离开作业区至少1m以上
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翻动钢轨或拨钢轨时,要指派业务熟悉、体力较好的人员进行,同时应喊号使动作一致
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上道作业前应对磨轨机进行全面细致的检查,若机器工作性能不良,砂轮片受潮,可以使用
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上道作业前应对磨轨机进行全面细致的检查,以电动机为动力的,若发现电气开关状态不良,电缆线绝缘不良,单边绝缘性能不良,禁止上道作业
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安放工料具及卸、运钢轨时,不得损坏轨旁设备
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检查、改正尖轨部分轨距,调整好尖轨开程、动程,以及轮缘槽尺寸、竖切部分密贴状况,配合通号人员调试尖轨密贴
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运送备用钢轨及工具材料至施工现场,放在轨枕头时,距线路上的钢轨净距不少于50㎜
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运送备用钢轨及工具材料至施工现场,放在道心时,距线路的钢轨净距不少于300㎜
A. 对
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【判断题】
运送备用钢轨及工具材料至施工现场,新轨高度不得超过线路上的钢轨面25㎜
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起道捣固作业看道:起道人俯身距起道机20~30m处的标准股上往回看,以起好的地段为准,看钢轨下腭水平线的高低情况,指挥压机手起道
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起道捣固作业根据车流密度和线路状态,接头应适当抬高,不用考虑沉落量
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在坡道上起道,从上坡往下坡看时,每点都不能低,从下坡往上坡看时每点都不能高
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正线路轨距变化率不大于1/1000,其他线路不大于2/1000
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锯轨作业时,锯后钢轨长度误差不超过±5mm
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钻孔作业时,螺孔允许误差:孔径±3mm,位置±3mm
A. 对
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钻孔作业时,钢轨孔两边应到棱,边缘不得有毛刺;倒棱倒角45°~60°,顺长0.5~1.0mm
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【判断题】
安装接头鱼尾板时,曲线线路接头的紧固顺序为:先紧2、5位,再1、6位,最后紧3、4位
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【判断题】
安装接头鱼尾板时,直线线路的接头螺栓紧固顺序为:先紧1、6位,再紧3、4位,最后拧紧2、5位
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安装接头鱼尾板时,初步紧固后,要用扭矩扳手按顺序扭紧螺帽,调校至所需的扭矩
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更换铁垫板时,铁垫板应安放在木枕中间,位置正确平整,垫板外肩要与轨底密靠,空隙不超过6mm,滑床板与基本轨落槽,滑床板与基本轨及尖轨底部密贴
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将轨距尺的固定端紧贴一条钢轨的工作边,另一端放置在另一股钢轨工作边上,并左右移动,直至到最小间距,此时刻度就是准确轨距值
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轨距尺垂直线路中心线架设在钢轨顶面,读取水平尺的气泡靠近末端相对应的值则为准确水平值
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线路工班人员应规定定期用钢轨磨耗测量仪检测轨道上的钢轨侧面、垂直磨耗情况
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测量道岔转辙部分的轨道不平顺时,为防止尖轨闭合,出现夹伤意外,应将转辙机转到手动位置,并放置止动块在基本轨与尖轨之间,同时应与车站保持联络畅通
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两名线路巡检员检查一指定轨段须要执行巡道的地方包括正线、车辆段、停车场
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线路巡检员上班前应按照规定穿戴好防护服装及劳保用品
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线路的终点站或区段折返站设置折返线或折返渡线
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