Surveying ‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is f/H H/f H. f H + f f/H H/f H. f H + f ANSWER DOWNLOAD EXAMIANS APP
Surveying The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is 2f2 f2 ½f 3f2 2f2 f2 ½f 3f2 ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of a vertical photograph of focal length ‘f’ taken from height of ‘H’ metres above M.S.L., at a point of reduced level ‘h’, is f/H (H - h)/f f/(H + h) f/(H - h) f/H (H - h)/f f/(H + h) f/(H - h) ANSWER DOWNLOAD EXAMIANS APP
Surveying The solar tidal force divided by lunar tidal force is 3/4 1/2 5/4 1/3 3/4 1/2 5/4 1/3 ANSWER DOWNLOAD EXAMIANS APP
Surveying The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is 80° 60° 70° 50° 80° 60° 70° 50° ANSWER DOWNLOAD EXAMIANS APP
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 sin A = cos δ/cos λ sin α = sin λ/sin δ All listed here cos H = tan λ/tan δ sin A = cos δ/cos λ sin α = sin λ/sin δ All listed here ANSWER DOWNLOAD EXAMIANS APP
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