單項(xiàng)選擇題高速鐵路有砟軌道焊接接頭低塌大于()且小于()為輕傷。

A.0.2mm,0.3mm
B.0.2mm,0.4mm
C.0.3mm,0.4mm
D.0.3mm,0.5mm


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1.單項(xiàng)選擇題250km/h(不含)~300km/h鋼軌軌頂面擦傷深度大于()為重傷。

A.0.5mm
B.0.6mm
C.1mm
D.0.35mm

2.單項(xiàng)選擇題250km/h(不含)~300km/h鋼軌軌頂面擦傷深度大于()為輕傷。

A.0.5mm
B.0.6mm
C.1mm
D.0.35mm

3.單項(xiàng)選擇題200km/h~250km/h鋼軌軌頂面擦傷深度大于()為重傷。

A.0.5mm
B.0.6mm
C.1mm
D.0.35mm

4.單項(xiàng)選擇題200km/h~250km/h鋼軌軌頂面擦傷深度大于()為輕傷。*

A.0.5mm
B.0.6mm
C.1mm
D.0.35mm

5.單項(xiàng)選擇題鋼軌表面冷態(tài)下形成的縱、橫向劃痕、碰傷深度,軌頭踏面和軌底下表面允許偏差(),其他部位允許偏差()。

A.≤0.35mm,≤0.50mm
B.≤0.25mm,≤0.35mm
C.≤0.25mm,≤0.50mm
D.≤0.30mm,≤0.50mm