The top of a mast signal 2000 meters away was sighted through a transit with recorded vertical angle of 4°15'. The height of the mast is 6.5 m and the height of the transit above the point where it is set is 1.25 m. The elevation of the signal B is 175.71 m. Compute the elevation of the point under the transit A with due allowance for curvature and refraction.

The top of a mast signal 2000 meters away was sighted through a transit with recorded vertical angle of 4°15'. The height of the mast is 6.5 m and the height of the transit above the point where it is set is 1.25 m. The elevation of the signal B is 175.71 m. Compute the elevation of the point under the transit A with due allowance for curvature and refraction.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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