Answered: The instrument used was a transit with…

The instrument used was a transit with an internal focusing telescope and a stadia interval factor of 99, Compute: a) DRAW DIAGRAM b) The Elevation at the turning point. c) The elevation at Point 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

The instrument used was a transit with an internal focusing telescope and a stadia interval factor of 99,
Compute:

a) DRAW DIAGRAM

b) The Elevation at the turning point.

c) The elevation at Point B.

d) The gradient from A to B if all the stations are in a straight line.

STA
A
TP1
B
STADIA
INTERCEPT
1.82
2.12
BACKSIGHT
VERTICAL
ANGLE
-14° 45'
-18° 12'
ROD
RDG.
2.1
1.92
STADIA
INTERCEPT
1.65
2.3
FORESIGHT
VERTICAL
ANGLE
12° 48'
-8° 15'
ROD
RDG.
1.58
1.65
ELEV
450

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Step 1: Given data

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Step 3: Calculation of turning point TP1

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Step 4: Calculation of elevation of point B

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