1) 2 points B & C were observed from point A where the instrument was set up at a height of 1.25m. Points B &C are ahead of point A. The surveyor used an internally focusing telescope with a stadia interval factor of 100. The table below shows the data recorded as observed for points B & C. Answer the following. (Show complete figures and solutions) a) What is the stadia constant of the instrument? b) What is the slope distance between the telescope at point A and the rod reading at point B? c) What is the difference in elevation between point B & C? d) What is the slope distance between the ground surface at point B and the ground surface at C?

1) 2 points B & C were observed from point A where the instrument was set up at a height of 1.25m. Points B &C are ahead of point A. The surveyor used an internally focusing telescope with a stadia interval factor of 100. The table below shows the data recorded as observed for points B & C. Answer the following. (Show complete figures and solutions) a) What is the stadia constant of the instrument? b) What is the slope distance between the telescope at point A and the rod reading at point B? c) What is the difference in elevation between point B & C? d) What is the slope distance between the ground surface at point B and the ground surface at C?

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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Question

Answer a, b, c

Draw correct and complete figure

1) 2 points B & C were observed from point A where the instrument was set up at a height
of 1.25m. Points B &C are ahead of point A. The surveyor used an internally focusing
telescope with a stadia interval factor of 100. The table below shows the data recorded as
observed for points B & C.
Answer the following. (Show complete figures and solutions)
a) What is the stadia constant of the instrument?
b) What is the slope distance between the telescope at point A and the rod reading at
point B?
c) What is the difference in elevation between point B & C?
d) What is the slope distance between the ground surface at point B and the ground
surface at C?
e) What is the elevation of point C if point A is at an elevation of +0316.15m above mean
sea level?
Correct Figure
1 attachment
Vertical
Stadia Hair Readings
ROD/Point
Angle
Upper
Middle
Lower
B
-25°15
2.316
1.877
1.438
-45°57'
3.333
2.011
e.689

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