Surveying Which of the following errors cannot be eliminated by taking both face observations ? index error i.e. error due to imperfect adjustment of the vertical circle vernier None of these error due to horizontal axis not being perpendicular to the vertical axis error due to non-parallelism of the axis of telescope level and line of collimation index error i.e. error due to imperfect adjustment of the vertical circle vernier None of these error due to horizontal axis not being perpendicular to the vertical axis error due to non-parallelism of the axis of telescope level and line of collimation ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be eliminated by taking mean of bot face observations ? error due to eccentricity of verniers error due to imperfect graduations error due to imperfect adjustment of plate levels error due to line of collimation not being perpendicular to horizontal axis error due to eccentricity of verniers error due to imperfect graduations error due to imperfect adjustment of plate levels error due to line of collimation not being perpendicular to horizontal axis ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of a vertical photograph of focal length ‘f’ taken from height of ‘H’ metres above M.S.L., at a point of reduced level ‘h’, is (H - h)/f f/(H - h) f/H f/(H + h) (H - h)/f f/(H - h) f/H f/(H + h) ANSWER DOWNLOAD EXAMIANS APP
Surveying Perspective centre relates to Central projection Parallel projection Orthogonal projection None of these Central projection Parallel projection Orthogonal projection None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying Circumpolar stars Are seldom seen near the pole star Rotate round the celestial pole Remain always above the horizon Rotate round the North Pole Are seldom seen near the pole star Rotate round the celestial pole Remain always above the horizon Rotate round the North Pole ANSWER DOWNLOAD EXAMIANS APP
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