试题与答案

测量钢轨的长度可以用钢卷尺绷紧直接检量,而测量钢轨的高度、底宽、头宽则需用的工具和检

题型:单项选择题

题目:

测量钢轨的长度可以用钢卷尺绷紧直接检量,而测量钢轨的高度、底宽、头宽则需用的工具和检量的部位分别是()。

A、游标卡尺、离端头500mm以上部位;

B、游标卡尺、离端头750mm以上部位;

C、千分尺、离端头500mm以上部位;

D、千分尺、离端头750mm以上部位。

答案:

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