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.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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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.
Dr
NK
ENGIN
Transcribed Image Text: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. Dr NK ENGIN
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