![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
允许最大速度大于120km/h且小于等于160km/h的区段,轨道动态质量容许偏差管理值,高低Ⅲ级偏差值管理值为()
A.10mm
B.15mm
C.20mm
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、15mm
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.10mm
B.15mm
C.20mm
B、15mm
A.大于等于6.0m
B.大于3.0m且小于等于6.0m
C.大于6.0m且小于等于9.0m
D.小于等于3.0m
允许速度大于120km/h的无缝线路上,钢轨顶面凹凸矢度不得大于()。
A.0.1mm
B.0.2mm
C.0.3mm
D.0.5mm