某四等附合导线,全长8.1km。经测量计算,其方位角闭合差为15",纵向误差和横向误差分别为16cm和12cm,则该导线的全长相对闭合差为()A:1/5...

作者: tihaiku 人气: - 评论: 0
问题 某四等附合导线,全长8.1km。经测量计算,其方位角闭合差为15",纵向误差和横向误差分别为16cm和12cm,则该导线的全长相对闭合差为()
选项 A:1/54000 B:1/50625 C:1/40500 D:1/28928
答案 C
解析 导线全长闭合差;导线全长相对闭合差。所以选项C是正确的。

相关内容:导线,全长,测量,方位角,纵向,误差,横向

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