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1. What is the distance between the stadia hairs on the instrument's scope? (answer in mm) 2. What is the instrument's stadia constant? (answer in m) 3. What is the horizontal distance between point A and B? (answer in m)

1. What is the distance between the stadia hairs on the instrument's scope? (answer in mm) 2. What is the instrument's stadia constant? (answer in m) 3. What is the horizontal distance between point A and B? (answer in m)

Structural Analysis
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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1. What is the distance between the stadia hairs on the instrument's scope? (answer in mm)
2. What is the instrument's stadia constant? (answer in m)
3. What is the horizontal distance between point A and B? (answer in m)

A surveyor set his instrument up at point A in order to observe point B. The instrument was inclined at an angle of +30 23' from the horizontal in order to observe point B. From his observations, the difference between the Upper reading and the Lower reading on the rod at point B was 2.20m while the Middle reading on the rod was 1.95m. At point A, his instrument was measured to be at a height of 1.62m The telescope used was advertised as follows: Telescope length 20 cm %3D Focal length 20 cm Stadia interval factor = 95.50
Transcribed Image Text:A surveyor set his instrument up at point A in order to observe point B. The instrument was inclined at an angle of +30 23' from the horizontal in order to observe point B. From his observations, the difference between the Upper reading and the Lower reading on the rod at point B was 2.20m while the Middle reading on the rod was 1.95m. At point A, his instrument was measured to be at a height of 1.62m The telescope used was advertised as follows: Telescope length 20 cm %3D Focal length 20 cm Stadia interval factor = 95.50
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