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 β/S h tan α/S h (tan α - tan β)/S h (tan α + tan β)/S h tan β/S h tan α/S ANSWER DOWNLOAD EXAMIANS APP
Surveying Intersection method of detailed plotting is most suitable for hilly areas plains urban areas forests hilly areas plains urban areas forests ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be neutralised by setting the level midway between the two stations ? error due to curvature only None of these error due to both curvature and re-fraction error due to refraction only error due to curvature only None of these error due to both curvature and re-fraction error due to refraction only ANSWER DOWNLOAD EXAMIANS APP
Surveying Height of instrument method of levelling is quicker and less tedious for large number of intermediate sights less accurate than rise and fall method more accurate than rise and fall method None of these quicker and less tedious for large number of intermediate sights less accurate than rise and fall method more accurate than rise and fall method None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The flying height of the camera is 1,000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is 52 m 72 m 62 m 82 m 52 m 72 m 62 m 82 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The smaller horizontal angle between the true meridian and a survey line, is known Bearing Dip Declination Azimuth Bearing Dip Declination Azimuth ANSWER DOWNLOAD EXAMIANS APP
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