LEVELLING SURVEY - Practice Mode
1) Which levelling is adopted while the points are a great distance apart?
Correct Answer: Differential levelling
2) Which levelling is adopted if the obstacles between the points?
Correct Answer: Differential levelling
4) What is the levelling used while it is not possible to set up the level mid way between two points as across river or lake?
Correct Answer: Reciprocal levelling