In the two-peg test of a dumpy level, the following observations were taken: Rod Reading Instrument setup at M Instrument setup at P At point A 1.225m 2.545 m At point B 1.550m 3.335m Point P is 5 m away from A while Point A is 65m away from B. Point M is equidistant from A and B. -0.325 v Determine the true difference in elevation between points A and B 2.509 v Determine the correct reading on A when the instrument is at P 2.834 Determine the correct reading on B when instrument is at P.

In the two-peg test of a dumpy level, the following observations were taken: Rod Reading Instrument setup at M Instrument setup at P At point A 1.225m 2.545 m At point B 1.550m 3.335m Point P is 5 m away from A while Point A is 65m away from B. Point M is equidistant from A and B. -0.325 v Determine the true difference in elevation between points A and B 2.509 v Determine the correct reading on A when the instrument is at P 2.834 Determine the correct reading on B when instrument is at P.

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

In the two-peg test of a dumpy level, the following observations were taken:
Rod Reading
Instrument setup at M
Instrument setup at P
At point A
1.225m
2.545 m
At point B
1.550m
3.335m
Point P is 5 maway from A while Point A is 65m away from B. Point M is equidistant from A and B.
-0.325
Determine the true difference in elevation between points A and B
2.509
v Determine the correct reading on A when the instrument is at P
2.834
Determine the correct reading on B when instrument is at P.

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