Surveying If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to 2° 3° 4° 1° 2° 3° 4° 1° ANSWER DOWNLOAD EXAMIANS APP
Surveying The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is 60° 50° 80° 70° 60° 50° 80° 70° 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 + tan β)/S 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 ANSWER DOWNLOAD EXAMIANS APP
Surveying The sidereal day is the time interval between two successive upper transits of First point of Libra The polar star Mean sun First point of Aries First point of Libra The polar star Mean sun First point of Aries ANSWER DOWNLOAD EXAMIANS APP
Surveying The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between Zenith and pole Horizon and equator Pole and horizon Equator and zenith Zenith and pole Horizon and equator Pole and horizon Equator and zenith ANSWER DOWNLOAD EXAMIANS APP
Surveying The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is B = b/fH B = H/bf B = bH/f B =f/bH B = b/fH B = H/bf B = bH/f B =f/bH ANSWER DOWNLOAD EXAMIANS APP
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