A'level line'is a
A)horizontal line
B)line parallel to the mean spheriodal surface of earth
C)line passing through the center of cross hairs and the center of eye piece
D)line passing through the objective lens and the eye-piece of a dumpy or tilting level

Question

Quizplus · Accepted Answer

A level line in surveying is defined as a line that lies in a plane parallel to the mean spheroidal surface of the Earth. It is not necessarily horizontal but is considered as such for small areas.

A'level Line'is a