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.