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【单选题】
信号标志(与工务有关的)包括___、进站预告标限速标和解除限速标。
A. 公里表
B. 曲线标
C. 警冲标
D. 坡度标
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答案
C
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道岔导曲线下股高于上股限值,作业验收为___,经常保养为2mm,临时补修为3mm。
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道岔导曲线下股高于上股限值,作业验收为0mm,经常保养为___,临时补修为3mm。
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道岔导曲线下股高于上股限值,作业验收为0mm,经常保养为2mm,临时补修为___。
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尖轨尖处轨距的作业验收的容许偏差管理值为___。
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