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 sin α = sin λ/sin δ sin A = cos δ/cos λ All listed here cos H = tan λ/tan δ sin α = sin λ/sin δ sin A = cos δ/cos λ All listed here cos H = tan λ/tan δ ANSWER DOWNLOAD EXAMIANS APP
Surveying A plate parallel is the line on the plane of the negative Parallel to the principal line Along the bisector of the angle between the principal line and a perpendicular line through principal plane Perpendicular to the principal line None of these Parallel to the principal line Along the bisector of the angle between the principal line and a perpendicular line through principal plane Perpendicular to the principal line None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The elevation of the star at elongation is obtained by sin α = cos φ cosec δ sin α = sin φ cosec δ sin α = sin φ sec δ sin α = cos φ sec δ sin α = cos φ cosec δ sin α = sin φ cosec δ sin α = sin φ sec δ sin α = cos φ sec δ ANSWER DOWNLOAD EXAMIANS APP
Surveying The angle between the prolongation of the preceding line and the forward line of a traverse is called direct angle included angle None of these deflection angle direct angle included angle None of these deflection angle ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be neutralised by setting the level midway between the two stations ? error due to both curvature and re-fraction error due to refraction only error due to curvature only None of these error due to both curvature and re-fraction error due to refraction only error due to curvature only None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as Perspective centre Ground principal point Ground plumb point Iso-centre Perspective centre Ground principal point Ground plumb point Iso-centre ANSWER DOWNLOAD EXAMIANS APP
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