A vertical angle of +12:52'25" is measured to a station at the top of a hill from an instrument setup 2.250 m away from the hilltop station, measured horizontally. The height of the target over the station is 3.744m. The telescope of the instrument is 1.585m above the lower station, whose elevation is 98.366m. Assuming normal refraction conditions (Hint: consider effect of curvature only), what is the elevation of the hiltop station? Elevation of the hilltop station (with curvature effect only) = [elev] in meters %3D

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A vertical angle of +12:52'25 is measured to a station at the top of a hill from an instrument setup 2.250 m
away from the hilltop station, measured horizontally. The height of the target over the station is 3.744m. The
telescope of the instrument is 1.585m above the lovwer station, whose elevation is 98.366m. Assuming normal
refraction conditions (Hint: consider effect of curvature only), what is the elevation of the hiltop station?
Elevation of the hilltop station (with curvature effect only) = [elev] in meters
%3D
Transcribed Image Text:A vertical angle of +12:52'25 is measured to a station at the top of a hill from an instrument setup 2.250 m away from the hilltop station, measured horizontally. The height of the target over the station is 3.744m. The telescope of the instrument is 1.585m above the lovwer station, whose elevation is 98.366m. Assuming normal refraction conditions (Hint: consider effect of curvature only), what is the elevation of the hiltop station? Elevation of the hilltop station (with curvature effect only) = [elev] in meters %3D
Sighting across a lake 13 km wide through a pair of binoculars, what is the height of the shortest tree on the
opposite shore whose tip the observer can see if his eyes are 160 cm above the shore line on which he stands?
Height of the tree= [ht] in meters.
Transcribed Image Text:Sighting across a lake 13 km wide through a pair of binoculars, what is the height of the shortest tree on the opposite shore whose tip the observer can see if his eyes are 160 cm above the shore line on which he stands? Height of the tree= [ht] in meters.
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