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 β/S h (tan α + tan β)/S h tan α/S h (tan α - tan β)/S h tan β/S h (tan α + tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying To avoid large centering error with very short legs, observations are generally made By using optical system for centering the theodolite All listed here To a target fixed on theodolite tripod on which theodolite may be fitted easily To chain pins By using optical system for centering the theodolite All listed here To a target fixed on theodolite tripod on which theodolite may be fitted easily To chain pins ANSWER DOWNLOAD EXAMIANS APP
Surveying The average eye base is assumed as 58 mm 60 mm 64 mm 62 mm 58 mm 60 mm 64 mm 62 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are One angle equation and three side equations None of these Two angle equations and two side equations Three angle equations and one side equation One angle equation and three side equations None of these Two angle equations and two side equations Three angle equations and one side equation ANSWER DOWNLOAD EXAMIANS APP
Surveying Spring tides are caused when Solar tidal force acts opposite to lunar tidal force Solar tidal force and lunar tidal force both coincide Sun and moon are in line with earth None of these Solar tidal force acts opposite to lunar tidal force Solar tidal force and lunar tidal force both coincide Sun and moon are in line with earth None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The net ground area of a vertical photograph 20 cm × 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is 0.64 sq km 0.50 sq km 0.56 sq km 0.60 sq km 0.64 sq km 0.50 sq km 0.56 sq km 0.60 sq km ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS