![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[主观题]
采用顺时针度盘经纬仪来观测C点的竖直角,将仪器安置在A点,盘左瞄准C点,竖盘读数为94°27'18
'';变换仪器为盘右,再瞄准B点,竖盘读数为265°32'18'',完成现场观测,求C点的竖直角。
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
用DJ6型光学经纬仪观测某一目标,盘左竖直度盘读数为71°45'24",该仪器竖盘(盘左)注记如表所示,测得竖盘指标差x=+24",试求该目标正确的竖直角α为多少?
A.13°26′00″
B.-13°26′00″
C.13°25′00″
D.-13°25′00″
A.57°10'24"
B.15°49'36"
C.14°49'36”
D.24°49'36”
A . 2º15′40″
B . 2º45′10″
C . 2º45′20″
D . 2º45′00″