A staff is placed on a benchmark (BM) of reduced level (RL) 100.000 m and a theodolite is placed at a horizontal distance of 50m from the BM to measure the vertical angles. The measured vertical angles from the horizontal at the staff readings of 0.400m and 2.400 m are found to be the same. Taking the height of the instrument as 1.400 m, the RL (in m) of the theodolite station is, 100 200 50 150 O O

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A staff is placed on a benchmark (BM) of reduced level (RL) 100.000 m and a theodolite is placed at
a horizontal distance of 50m from the BM to measure the vertical angles. The measured vertical
angles from the horizontal at the staff readings of 0.400m and 2.400 m are found to be the same.
Taking the height of the instrument as 1.400 m, the RL (in m) of the theodolite station is,
100
200
50
150
Transcribed Image Text:A staff is placed on a benchmark (BM) of reduced level (RL) 100.000 m and a theodolite is placed at a horizontal distance of 50m from the BM to measure the vertical angles. The measured vertical angles from the horizontal at the staff readings of 0.400m and 2.400 m are found to be the same. Taking the height of the instrument as 1.400 m, the RL (in m) of the theodolite station is, 100 200 50 150
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