engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Surveying Compass Surveying and Theodolite
The horizontal circle in a theodolite is graduated in
1
the quadrantal system from 0° to 90° in the four quadrants
2
the whole circle system from 0° to 360°
3
the semi-circle system from 0° to 180° in the right and left halves
4
a way similar to that in a prismatic compass