Surveying
Which of the following errors can be neutralised by setting the level midway between the two stations ?

error due to both curvature and re-fraction
error due to refraction only
error due to curvature only
None of these

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Refraction correction

has no effect on curvature correction
adds to the curvature correction
completely eliminates curvature correction
partially eliminates curvature correction

ANSWER DOWNLOAD EXAMIANS APP