试题详情

107.利用通用探伤仪K2.5探头对钢轨焊缝轨底脚探伤时,探测范围距轨底脚边0~15mm探头偏角应( )。[321020101]

A(A):向外偏10°

B(B):偏角为0°

C(C):向外偏15°

D(D):外偏8°