Situation 2] in the two-peg test of a dumpy level,level set up at M (midway between A and B), the rod readings on A and B are 1.155 mand 1.770 m,respectively. With level at P, the rod reading on A is 2.423 mand that on B is 2.999 m. If pointP is located 1.67 m from A along the extension of line AB and 76.910 m from B,the following observations aretaken: with1. The correct rod reading onthe far rod for ahorizontal line of sight (with the levelstill set up at P) should be?II. The correct rod reading on the near rod for a horizontal line of sight (with the levelstill set up at P) should be?111. Describe the angle of incidence of the line of sight.

This question is related to Dumpy leveling from Surveying Engineering. In this question we calculate…

Situation 2] in the two-peg test of a dumpy level, the following observations are taken: with level set up at M (midway between A and B), the rod readings on A and B are 1.155 mand 1.770 m, respectively. With level at P, the rod reading on A is 2.423 mand that on B is 2.999 m. If point P is located 1.67 m from A along the extension of line AB and 76.910m from B, 1. The correct rod reading on the far rod for a horizontal line of sight (with the level still set up at P) should be? ii. The correct rod reading on the near rod for a horizontal line of sight (with the level still set up at P) should be? 111. Describe the angle of incidence of the line of sight.

Situation 2] in the two-peg test of a dumpy level, the following observations are taken: with level set up at M (midway between A and B), the rod readings on A and B are 1.155 mand 1.770 m, respectively. With level at P, the rod reading on A is 2.423 mand that on B is 2.999 m. If point P is located 1.67 m from A along the extension of line AB and 76.910m from B, 1. The correct rod reading on the far rod for a horizontal line of sight (with the level still set up at P) should be? ii. The correct rod reading on the near rod for a horizontal line of sight (with the level still set up at P) should be? 111. Describe the angle of incidence of the line of sight.

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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Concept explainers

Methods of Surveying

Surveying is the practice to determine the relative three-dimensional positions of various points on the earth’s surface. This is done by computing the vertical and horizontal distances, angles between the points, collecting the observations, and plotting them on a map of any appropriate scale. Accuracy can be achieved by using the latest instruments like a theodolite, tachometer, etc. Leveling is a subdivision of surveying where the objective is to locate the elevation of objects considering a datum level.

Question

Situation 2] in the two-peg test of a dumpy level,
level set up at M (midway between A and B), the rod readings on A and B are 1.155 mand 1.770 m,
respectively. With level at P, the rod reading on A is 2.423 mand that on B is 2.999 m. If point
P is located 1.67 m from A along the extension of line AB and 76.910 m from B,
the following observations are
taken: with
1. The correct rod reading on
the far rod for a
horizontal line of sight (with the level
still set up at P) should be?
II. The correct rod reading on the near rod for a horizontal line of sight (with the level
still set up at P) should be?
111. Describe the angle of incidence of the line of sight.

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