Surveying In direct method of contouring, the process of locating or identifying points lying on a contour is called centring ranging horizontal control vertical control centring ranging horizontal control vertical control ANSWER DOWNLOAD EXAMIANS APP
Surveying Triangulation surveys are carried out for locating Control points for photogrammetric surveys Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc. Control points for surveys of large areas All of these Control points for photogrammetric surveys Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc. Control points for surveys of large areas All of these ANSWER DOWNLOAD EXAMIANS APP
Surveying Systematic errors Are also known as cumulative errors Can be removed by applying corrections to the observed values All listed here Always follow some definite mathematical law Are also known as cumulative errors Can be removed by applying corrections to the observed values All listed here Always follow some definite mathematical law 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 - 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 ANSWER DOWNLOAD EXAMIANS APP
Surveying The normal longitudinal overlap is generally kept 0.75 0.5 0.6 0.7 0.75 0.5 0.6 0.7 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 f/H H. f H + f H/f f/H H. f H + f H/f ANSWER DOWNLOAD EXAMIANS APP
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