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 Homologous points are Plumb points of stereo pair of photographs Opposite corners of a photograph Nodal points of the camera lens Corresponding points on the ground and photograph Plumb points of stereo pair of photographs Opposite corners of a photograph Nodal points of the camera lens Corresponding points on the ground and photograph ANSWER DOWNLOAD EXAMIANS APP
Surveying The sun's declination remains north between March 21 to June 21 Both (A) and (B) of above June 21 to September 21 September 21 to December 21 March 21 to June 21 Both (A) and (B) of above June 21 to September 21 September 21 to December 21 ANSWER DOWNLOAD EXAMIANS APP
Surveying The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is 6.5 mm 5.5 mm 4.4 mm 7.5 mm 6.5 mm 5.5 mm 4.4 mm 7.5 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying The following sights are taken on a “turning point” foresight and backsight foresight and intermediate sight foresight only foresight only foresight and backsight foresight and intermediate sight foresight only foresight only ANSWER DOWNLOAD EXAMIANS APP
Surveying G.M.T. corresponding to given mean time, equals L.M.T. - East longitude in time L.M.T. + East longitude in time None of these L.M.T. - West longitude in time L.M.T. - East longitude in time L.M.T. + East longitude in time None of these L.M.T. - West longitude in time ANSWER DOWNLOAD EXAMIANS APP
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