【多选题】
钢轨伤损分为___三类。
A. 轻伤、重伤和折断
B. 微伤、轻伤和重伤
C. 微伤、重伤和折断
D. 中伤、重伤和折断
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答案
A
解析
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辙叉伤损分___两类。
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侧面磨耗在钢轨踏面(按标准断面)下___mm处测量。
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60kg/m钢轨顶面擦伤深度超过___mm为钢轨重伤
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60kg/m钢轨顶面上有长大于___mm,深大于10mm的掉块为钢轨折断标准之一。
A. 70
B. 60
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【多选题】
基本轨垂直磨耗,60kg/m及以上钢轨,在正线、试车线上超过___mm,在其他线上超过()mm,应及时修理或更换。
A. 8 12
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基本轨垂直磨耗,50kg/m及以下钢轨,在正线、试车线上超过___mm,在其他线上超过()mm,应及时修理或更换。
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滑床板损坏、变形或滑床台磨耗大于___mm,应及时修理或更换。
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岔枕失效标准之一是机械磨损,经削平或除去腐朽木质后,其厚度不足___mm
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