A tacheometer is set up at an intermediate point on a traverse course AB and the following observations are taken on a staff held vertically. Staff station Bearing Vertical angle Staff intercept Axial hair reading A 0.55 2.150 225° 30' 45° 30' (-)4° 24' (-)5° 12' 0.30 1.800 B The instrument is fitted with an anallatic lens and the multiplying constant is 100. The RL of A being given as 351.75 m, calculate the length of AB and RL of B.

A tacheometer is set up at an intermediate point on a traverse course AB and the following observations are taken on a staff held vertically. Staff station Bearing Vertical angle Staff intercept Axial hair reading A 0.55 2.150 225° 30' 45° 30' (-)4° 24' (-)5° 12' 0.30 1.800 B The instrument is fitted with an anallatic lens and the multiplying constant is 100. The RL of A being given as 351.75 m, calculate the length of AB and RL 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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Concept explainers

Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.

Question

A tacheometer is set up at an intermediate point on a traverse course AB and the following observations
are taken on a staff held vertically.
Staff station Bearing Vertical angle Staff intercept Axial hair reading
A
0.55
2.150
225° 30'
45° 30'
(-)4° 24'
(-)5° 12'
B
0.30
1.800
The instrument is fitted with an anallatic lens and the multiplying constant is 100. The RL of A being
given as 351.75 m, calculate the length of AB and RL of B.

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