【单选题】【消耗次数:1】
闭合水准路线高差闭合差的理论值为( )。
总为0
与路线形状有关
为一不等于0的常数
由线路中任两点确定
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相关题目
【单选题】 闭合水准路线高差闭合差的理论值为( )。
①  总为零
②  与路线中的已知高程点的高程数值有关
③  为不等于零的一常数
④  由路线中的已知高程数值确定
【单选题】 闭合水准路线高差闭合差调整后,应使高差改正数之和等于( )。
①  高差闭合差,其符号相同
②  一个由具体闭合水准路线确定的常数
③  高差闭合差,其符号相反
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【单选题】 总长度为4000米的四等附合水准路线的高差闭合差允许值是(   )。
①  ±40mm
②  ±60mm
③  ±80mm
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【单选题】 水准路线高差闭合差的分配原则是( )。
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【单选题】 一闭合水准路线共测量了四段,各段的观测高差分别为:+4.721、-1.032、-3.753、+0.096。则高差闭合差为+0.032。
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【单选题】 附合水准路线内业计算时,高差闭合差采用以下哪个公式计算?
①  fh=∑h测-(H终-H起)
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③  fh=∑h测
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【单选题】 附合水准路线内业计算时,高差闭合差采用以下哪个公式计算?
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②  fh=∑h测-(H起- H终)
③  fh=∑h测
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【判断题】 水准测量在进行外业测量时,由于仪器本身构造原因、长期搬运及使用、操作方法等因素造成实测高差与理论值往往不相等,其差值为高差闭合差。
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【单选题】 闭合导线角度闭合差公式为( )
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