【单选题】
工长每月不少于___次对道岔维修作业质量进行全面自查回检和现场复核。
A. 1
B. 2
C. 3
D. 4
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答案
A
解析
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专业工程师每___不少于1次对各工班管内道岔维修质量进行全面检查
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不合格道岔整修后,在___分及以上者,可评为合格。
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60kg/m钢轨9号单开道岔___顶铁处冰雪必须彻底清除干净,保障该处尖轨内侧不得遗留冰雪。
A. 第一
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轨道线路施工作业时需在施工区域前后___米范围设置1盏红闪灯。
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拨道操作过程中,非操作作业人员应确保远离拨道机至少___米安全距离。
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碎石道床顶面(以轨底处为准)应低于轨枕顶面___。
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混凝土枕和木枕的分界处,距离钢轨接头不得少于___根轨枕。
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对于混凝土枕挡肩顶角处离缝宽度大于___判定为失效。
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正线及试车线上插入的个别短轨长度不得短于___,并不得连续插入两根及以上。
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