The following data were obtained by stadia observation: vertical angle, + 12deg 51 min; upper and lower stadia hair reading, 4.311 and 3.730 m, respectively. the rod reading was taken at 3.785m above the stadia point A and the height of instrument set up at point B is 1.620m. If the stadia interval factor is 99.5 and the stadia constant is 0.381 m, what is the difference in elevation? а. 24.109 b. 34.321 С. 20.852 d. 10.455

The following data were obtained by stadia observation: vertical angle, + 12deg 51 min; upper and lower stadia hair reading, 4.311 and 3.730 m, respectively. the rod reading was taken at 3.785m above the stadia point A and the height of instrument set up at point B is 1.620m. If the stadia interval factor is 99.5 and the stadia constant is 0.381 m, what is the difference in elevation? а. 24.109 b. 34.321 С. 20.852 d. 10.455

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 data were obtained by stadia observation: vertical angle, +12deg 30min; upper stadia hair reading and lower stadia hair readings, 4.5m and 3.25m, respectively. The rod reading was taken at 3.875m above the stadia point at A and the height of instrument above the instrument station at B, is 1.62m. If the stadia interval factor is 99.5 and the instrument constant is 0.381m, what is the horizontal distance between the instrument station and the stadia point?
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