Surveying Subtense bar is an instrument used for measurement of angles measurement of horizontal distances in plane areas levelling measurement of horizontal distances in undulated areas measurement of angles measurement of horizontal distances in plane areas levelling measurement of horizontal distances in undulated areas ANSWER DOWNLOAD EXAMIANS APP
Surveying Benchmark is established by hypsometry barometric levelling trigonometrical levelling spirit levelling hypsometry barometric levelling trigonometrical levelling spirit levelling ANSWER DOWNLOAD EXAMIANS APP
Surveying To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is 5000 m 7000 m 6000 m 4000 m 5000 m 7000 m 6000 m 4000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The station where observations are not made, but the angles at the station are used in triangulation series, is known as Satellite station Pivot station Main station Subsidiary station Satellite station Pivot station Main station Subsidiary station ANSWER DOWNLOAD EXAMIANS APP
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 Homologous points are Plumb points of stereo pair of photographs Nodal points of the camera lens Corresponding points on the ground and photograph Opposite corners of a photograph Plumb points of stereo pair of photographs Nodal points of the camera lens Corresponding points on the ground and photograph Opposite corners of a photograph ANSWER DOWNLOAD EXAMIANS APP
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