A reciprocal levelling is observed across a wide river and the reciprocal level readings were taken between points A and B as follows. With instrument set up near A, the rod readings on A are 2.283 and 2.285 m. The reciprocal level reading on the opposite side of the river at point B are 3.618, 3.619, 3.621 and 3.622 m. With the instrument set up near B, the rod readings on B are 4.478 and 4.476 m and the rod readings on the opposite side of the river at point A are 3.143, 3.140, 3.146 and 3.144 m. a. Compute the difference in elevation between A and B with the instrument set up near A. b. What is the true difference in elevation between A and B? c. If the elevation of A is 300 m, what is the elevation of B?

A reciprocal levelling is observed across a wide river and the reciprocal level readings were taken between points A and B as follows. With instrument set up near A, the rod readings on A are 2.283 and 2.285 m. The reciprocal level reading on the opposite side of the river at point B are 3.618, 3.619, 3.621 and 3.622 m. With the instrument set up near B, the rod readings on B are 4.478 and 4.476 m and the rod readings on the opposite side of the river at point A are 3.143, 3.140, 3.146 and 3.144 m. a. Compute the difference in elevation between A and B with the instrument set up near A. b. What is the true difference in elevation between A and B? c. If the elevation of A is 300 m, what is the elevation of B?

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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A reciprocal leveling is observed across a wide river and the reciprocal level readings were taken between points A and B as follows. With instrument set up near A, the rod readings on A are 2.283 m and 2.285 m. The reciprocal level readings on the opposite side of the river at point B are 3.618, 3.619, 3.621 and 3.622 m. With the instrument set up near B the rod readings on B are 4.478 m and 4.476 m, and the rod readings on the on the opposite side of the river at point A, the rod readings are 3.143, 3.140, 3.146 and 3.144. a) Compute the difference in elevation between A and B with the instrument set up near A. b) What is the true difference in elevation between A and B? c) If the elevation A is 300 m, what is the elevation of B?
A Reciprocal leveling is observed across a wide river and the reciprocal level readings were takenbetween points A and B as follows. With instrument set up near A, the rod readings on A are 2.283 mand 2.285 m. The reciprocal level readings on the opposite side of the river at point B are 3.618, 3.619,3.621 and 3.622 m. With the instrument set up near B the rod readings on B are 4.478m and 4.476 m,and the rod readings on the on the opposite side of the river at point A, the rod readings are 3.143,3.140, 3.146 and 3.144.a.Compute the difference in elevation between A and B with the instrument set up near A.b.What is the true difference in elevation between A and B?c.If the elevation A is 300 m, what is the elevation of B?
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In leveling across a deep and wide river, reciprocal level readings were taken between two points X and Y as follows: a) With the instrument set up near x, the readings on x are 1.283 and 1.285m; on the distant point Y, the rod readings are 2.618, 2.619, 2.621, and 2.622m. b) With the instrument set up near Y, the rod readings on Y are 3.478 and 3.476m; on the distant point X, the rod readings are 2.143, 2.140, 2.146 and 2.144m Determine the true difference in elevation between the two points and the elevation of Y if the known elevation of X is 290.082m *
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