Surveying Which of the following errors can be eliminated by taking mean of bot face observations ? error due to line of collimation not being perpendicular to horizontal axis error due to imperfect graduations error due to eccentricity of verniers error due to imperfect adjustment of plate levels error due to line of collimation not being perpendicular to horizontal axis error due to imperfect graduations error due to eccentricity of verniers error due to imperfect adjustment of plate levels ANSWER DOWNLOAD EXAMIANS APP
Surveying The Polaris describes a small circle round the pole whose radius is approximately 2° 3° 1° 4° 2° 3° 1° 4° ANSWER DOWNLOAD EXAMIANS APP
Surveying The true and mean suns occupy the same meridian at the same time on April 15 June 14 All of these September 1 April 15 June 14 All of these September 1 ANSWER DOWNLOAD EXAMIANS APP
Surveying The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is ½f 2f2 3f2 f2 ½f 2f2 3f2 f2 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 refraction only None of these error due to curvature only error due to both curvature and re-fraction error due to refraction only None of these error due to curvature only error due to both curvature and re-fraction ANSWER DOWNLOAD EXAMIANS APP
Surveying The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height ‘H’ is 100 m. If mean photo base is 95.2 mm, the flying height is 8,000 m 12,000 m 14,000 m 10,000 m 8,000 m 12,000 m 14,000 m 10,000 m ANSWER DOWNLOAD EXAMIANS APP