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Lecture on Operations In Levelling
In this article we are going to discuss about levelling which is a branch of surveying. Well, before approaching towards the lecture we need to know what is levelling?
Levelling:
Levelling is defined as "an art of determining relative height of different points on, above or below the surface".
Principle Of Levelling:
The principle of leveling is to acquire horizontal line of sight regarding which vertical distances of the points above or below this line of sight are found.
Objective Of Levelling :
- To detect the elevation of the given point regarding some supposed reference line which is called datum.
- To set up point at necessary elevation respect to datum.
Terms used in leveling:
- Level Surface
- Level Line
- Horizontal Plane
- Horizontal Line
Now watch the video lecture with nice demonstration to know the detailed operations in leveling.
![Lecture on Operations In Levelling Lecture on Operations In Levelling](img/operation-in-levelling.jpg)