An instrument is set-up at point M and vertical angles are observed at N (-21°15') and O (+33°45'). The height of instrument from point M is 1.5865m. The horizontal distance of NM and NO are 35G.2552m and 913.5565m respectively. If point O is at elevation 620.6453m, Determine the elevation of N neglecting the effects of curvature and refraction. Determine the elevation of N making due allowance for curvature and refraction.
An instrument is set-up at point M and vertical angles are observed at N (-21°15') and O (+33°45'). The height of instrument from point M is 1.5865m. The horizontal distance of NM and NO are 35G.2552m and 913.5565m respectively. If point O is at elevation 620.6453m, Determine the elevation of N neglecting the effects of curvature and refraction. Determine the elevation of N making due allowance for curvature and refraction.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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For all the computed values with decimals, use four (4) digits after the decimal.
Transcribed Image Text:An instrument is set-up at point M and vertical angles are observed at N (-21°15') and O (+33°45'). The
height of instrument from point Mis 1.5865m. The horizontal distance of NM and NO are 35G.2552m
and 913.5565m respectively. If point O is at elevation 620.6453m,
Determine the elevation of N neglecting the effects of curvature and refraction.
Determine the elevation of N making due allowance for curvature and refraction.
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