A tacheometer is placed at a station A and readings on a staff held vertical upon a B.M. of RL = 100.20 meter and at station B are 0.640, 2.200, 3.760 and 0.010, 2.120, 4.230 m respectively. The angle of depression of the telescope in the first case is 6° 19' and in the second case is 7° 42'. Find the horizontal distance from A to B and the RL of station B, if the instrument has constants 100 and 0.5.
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Question: A Tacheometer Is Placed At A Station A And Readings On A Staff Held Vertical Upon A B.M. Of RL = 100.0 Meter And At Station B Are 0.640, 2.200, 3.760 And 0.010, 2.120, 4.230 M Respectively. The Angle Of Depression Of The Telescope In The First Case Is 6° 19' And In The Second Case Is 7° 42'. Find The Horizontal Distance From A To B And The RL Of Station B,
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A tacheometer is placed at a station A and readings on a staff held vertical upon a B.M. of RL = 100.0 meter and at station B are 0.640, 2.200, 3.760 and 0.010, 2.120, 4.230 m respectively. The angle of depression of the telescope in the first case is 6° 19' and in the second case is 7° 42'. Find the horizontal distance from A to B and the RL of station B, if the instrument has constants 100 and 0.5.
.Ans. 1. 625.434 m; 91.432m