Surveying The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is 500 nautical miles 5700 nautical miles 5100 nautical miles 120 nautical miles 500 nautical miles 5700 nautical miles 5100 nautical miles 120 nautical miles ANSWER DOWNLOAD EXAMIANS APP
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 β/S h (tan α + tan β)/S h (tan α - tan β)/S h tan α/S h tan β/S h (tan α + tan β)/S h (tan α - tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying The angle of intersection of the two plane mirrors of an optical square is 45° 60° 90° 30° 45° 60° 90° 30° ANSWER DOWNLOAD EXAMIANS APP
Surveying The parallax of a point on the photograph is due to Ground elevation Length of air base All listed here Flying height Ground elevation Length of air base All listed here Flying height ANSWER DOWNLOAD EXAMIANS APP
Surveying The prime vertical passes through The east point of the horizon The west point of the horizon The zenith point of the observer All of these The east point of the horizon The west point of the horizon The zenith point of the observer All of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is Declination and altitude system Altitude and azimuth system Declination and hour angle system Declination and right ascension system Declination and altitude system Altitude and azimuth system Declination and hour angle system Declination and right ascension system ANSWER DOWNLOAD EXAMIANS APP