Question

In the surveying level line is a?
A) horizontal line
B)line parallel to the mean spheroidal surface of the earth
C)line passing through the centre of cross hairs and the centre of eye piece
D)line passing through the objective lens and the eye piece of a dumpy level or tilting level ​

Answer 1

Answer:

D is the correct option may be Line pass passing through the objective lens and the IPS of a dumpy level of titling level

Explanation:

this is the serving of flying