Q.2 Reciprocal leveling was conducted across a wide river to determine the difference in level of points A and B, A situated on one bank of the river and B situated on the other .The following results on the staff held vertically at A and B from level station 1 and 2 , respectively were obtain . The level station 1 was near to A and station 2 was near to B. Instrument at Staff reading on A Staff reading on B 1 1.471 1.725 2 1.131 1.371 (1) If the reduce level of B is 91.18 m above the datum, what is the reduced level of A? (2) Assuming that the atmospheric conditions remain unchanged during the two sets of the observation, calculate (i) the combined curvature and refraction correction if the distance AB is 315 m, (ii) the collimation error?

Q.2 Reciprocal leveling was conducted across a wide river to determine the difference in level of points A and B, A situated on one bank of the river and B situated on the other .The following results on the staff held vertically at A and B from level station 1 and 2 , respectively were obtain . The level station 1 was near to A and station 2 was near to B. Instrument at Staff reading on A Staff reading on B 1 1.471 1.725 2 1.131 1.371 (1) If the reduce level of B is 91.18 m above the datum, what is the reduced level of A? (2) Assuming that the atmospheric conditions remain unchanged during the two sets of the observation, calculate (i) the combined curvature and refraction correction if the distance AB is 315 m, (ii) the collimation error?

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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Difference between Leveling and sounding
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