Surveying ‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is H. f f/H H + f H/f H. f f/H H + f H/f ANSWER DOWNLOAD EXAMIANS APP
Surveying The suitable contour interval for a map with scale 1 : 10000 is 2 m 20 m 10 m 5 m 2 m 20 m 10 m 5 m ANSWER DOWNLOAD EXAMIANS APP
Surveying Longitudes are measured from 0° to 180° westward 360° eastward 180° east or westward 180° eastward 180° westward 360° eastward 180° east or westward 180° eastward ANSWER DOWNLOAD EXAMIANS APP
Surveying The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as Plumb line Isocenter Perspective centre Principal point Plumb line Isocenter Perspective centre Principal point ANSWER DOWNLOAD EXAMIANS APP
Surveying Homologous point is Photo principal point All listed here Ground isocenter Ground principal point Photo principal point All listed here Ground isocenter Ground principal point ANSWER DOWNLOAD EXAMIANS APP
Surveying The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between Pole and horizon Zenith and pole Horizon and equator Equator and zenith Pole and horizon Zenith and pole Horizon and equator Equator and zenith ANSWER DOWNLOAD EXAMIANS APP
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