A.0～10mm
B.10～20mm
C.20～30mm
D.30～40mm

A.3mm
B.2mm
C.1mm
D.0.5mm

A.66mm
B.65mm
C.62mm
D.60mm

A.5mm
B.6mm
C.10mm
D.12mm

A.5mm
B.6mm
C.10mm
D.12mm

A.10mm
B.12mm
C.15mm
D.16mm

A.7.7m
B.11.3m
C.12.5m
D.13.88m

A.25km/h
B.30km/h
C.50km/h
D.60km/h

A.尖轨顶铁过长，补强板螺栓凸出
B.基本轨工作边及尖轨非工作边有“肥边”造成假密贴
C.基本轨、轨撑、滑床板挡肩之间存在“三道缝”
D.尖轨跟端轨缝过大，间隔铁和夹板磨耗，螺栓松动，过车时加大了冲击

A.4.5m
B.6m
C.7.5m
D.20m

A.10m
B.15m
C.18m
D.20m