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 f/H H/f H. f H + f f/H H/f H. f H + f ANSWER DOWNLOAD EXAMIANS APP
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 4° 3° 2° 1° 4° 3° 2° 1° ANSWER DOWNLOAD EXAMIANS APP
Surveying The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above None of these Pole Horizon Equator None of these Pole Horizon Equator ANSWER DOWNLOAD EXAMIANS APP
Surveying Cross staff is an instrument used for None of these setting out right angles measuring approximate horizontal angles measuring bearings of the lines None of these setting out right angles measuring approximate horizontal angles measuring bearings of the lines ANSWER DOWNLOAD EXAMIANS APP
Surveying The angle of intersection of the two plane mirrors of an optical square is 90° 45° 60° 30° 90° 45° 60° 30° ANSWER DOWNLOAD EXAMIANS APP
Surveying The sensitivity of a bubble tube can be increased by increasing the diameter of the tube increasing the viscosity of liquid decreasing the length of bubble decreasing the radius of curvature of tube increasing the diameter of the tube increasing the viscosity of liquid decreasing the length of bubble decreasing the radius of curvature of tube ANSWER DOWNLOAD EXAMIANS APP
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