Challenger App

No.1 PSC Learning App

1M+ Downloads
Levelling should always commence from a

AFore sight

BBench mark

CChange point

DIntermediate sight

Answer:

B. Bench mark


Related Questions:

Bad ranging is an example for
The use of an optical square is:
Method of ranging adopted in Forest areas.
The graduations of vertical circle of a theodolite is:
Curvature correction to a staff reading in differential levelling survey is ...............................