Surveying Parallax bar measures Height difference Parallax difference Parallax Height Height difference Parallax difference Parallax Height ANSWER DOWNLOAD EXAMIANS APP
Surveying If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be 1 cm 4 cm 2 cm 3 cm 1 cm 4 cm 2 cm 3 cm 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 All listed here sin A = cos δ/cos λ cos H = tan λ/tan δ sin α = sin λ/sin δ All listed here sin A = cos δ/cos λ cos H = tan λ/tan δ sin α = sin λ/sin δ ANSWER DOWNLOAD EXAMIANS APP
Surveying Refraction correction completely eliminates curvature correction adds to the curvature correction partially eliminates curvature correction has no effect on curvature correction completely eliminates curvature correction adds to the curvature correction partially eliminates curvature correction has no effect on curvature correction ANSWER DOWNLOAD EXAMIANS APP
Surveying Longitudes are measured from 0° to 180° eastward 180° east or westward 180° westward 360° eastward 180° eastward 180° east or westward 180° westward 360° eastward ANSWER DOWNLOAD EXAMIANS APP
Surveying Circumpolar stars Remain always above the horizon Rotate round the North Pole Are seldom seen near the pole star Rotate round the celestial pole Remain always above the horizon Rotate round the North Pole Are seldom seen near the pole star Rotate round the celestial pole ANSWER DOWNLOAD EXAMIANS APP