Surveying If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good cos H = tan λ/tan δ All listed here sin α = sin λ/sin δ sin A = cos δ/cos λ cos H = tan λ/tan δ All listed here sin α = sin λ/sin δ sin A = cos δ/cos λ ANSWER DOWNLOAD EXAMIANS APP
Surveying α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being ‘S’ and ‘f’ respectively. Parallax displacement of the point due to relief, is h tan α/S h (tan α + tan β)/S h (tan α - tan β)/S h tan β/S h tan α/S h (tan α + tan β)/S h (tan α - tan β)/S h tan β/S ANSWER DOWNLOAD EXAMIANS APP
Surveying In a spherical triangle ABC, right angled at C, sin b equals sin a cos A tan a cot A cot A tan a cos a sin A sin a cos A tan a cot A cot A tan a cos a sin A ANSWER DOWNLOAD EXAMIANS APP
Surveying The prime vertical passes through The zenith point of the observer All of these The west point of the horizon The east point of the horizon The zenith point of the observer All of these The west point of the horizon The east point of the horizon ANSWER DOWNLOAD EXAMIANS APP
Surveying 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents 1 m 4 m 3 m 2 m 1 m 4 m 3 m 2 m ANSWER DOWNLOAD EXAMIANS APP
Surveying A ’level line’ is a line parallel to the mean spheriodal surface of earth horizontal line line passing through the objective lens and the eye-piece of a dumpy or tilting level line passing through the center of cross hairs and the center of eye piece line parallel to the mean spheriodal surface of earth horizontal line line passing through the objective lens and the eye-piece of a dumpy or tilting level line passing through the center of cross hairs and the center of eye piece ANSWER DOWNLOAD EXAMIANS APP
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