A plumb bob is required -
(a) when measuring distances along slopes in a hilly country
(b) for accurate centering of a theodolite over a station mark
(c) for testing the verticality of ranging poles
(d) all of the above.
The correct Answer Is
(d) all of the above
(a) when measuring distances along slopes in a hilly country
(b) for accurate centering of a theodolite over a station mark
(c) for testing the verticality of ranging poles
(d) all of the above.
The correct Answer Is
(d) all of the above