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INSTRUMENT STAFF AT ZENITH ANGLE STAFF READING AT STATION Upper Middle Lower 1 96°55' 1.388 0.899 0.409 A. 2 122°18' 1.665 1.350 1.032

INSTRUMENT STAFF AT ZENITH ANGLE STAFF READING AT STATION Upper Middle Lower 1 96°55' 1.388 0.899 0.409 A. 2 122°18' 1.665 1.350 1.032

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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The following tacheometric observations were made from station A to stations 1 and 2.

The height of the instrument above the ground was 1.52 m. Take stadia interval factor and constant as 100 and 0, respectively. If the staff was inclined by 1° to the vertical, solve for the following:
a. Error in horizontal distance if the staff is inclined towards the
instrument for the line A-1. 
b. Error in the vertical distance if the staff is inclined away from the
instrument for the line A-2. 
c. If the elevation of point 1 is 115.673 m, determine the correct
elevation of point 2.

INSTRUMENT STAFF AT ZENITH ANGLE STAFF READING AT STATION Upper Middle Lower 1 96°55' 1.388 0.899 0.409 A. 2 122°18' 1.665 1.350 1.032
Transcribed Image Text:INSTRUMENT STAFF AT ZENITH ANGLE STAFF READING AT STATION Upper Middle Lower 1 96°55' 1.388 0.899 0.409 A. 2 122°18' 1.665 1.350 1.032
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