Surveying
For which of the following permanent adjustments of theodolite, the spire test is used ?

adjustment of plate levels
adjustment of line of sight
adjustment of horizontal axis
adjustment of altitude bubble and vertical index frame

ANSWER DOWNLOAD EXAMIANS APP

Surveying
A ’level line’ is a

line passing through the objective lens and the eye-piece of a dumpy or tilting level
horizontal line
line passing through the center of cross hairs and the center of eye piece
line parallel to the mean spheriodal surface of earth

ANSWER DOWNLOAD EXAMIANS APP