Terms used in Levelling Survey

Terms used in Levelling Survey

The method of determining relative altitudes of points on the surface of the earth or beneath the surface of the earth is called levelling. The instrument used for levelling is provided with either external type telescope or internal type telescope. In modern surveying instruments, internal focusing telescopes are …

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Surveying

Surveying

Surveying is the art of determining the relative position of various points above, on or below the surface of the earth. The relative positions are determined by measuring horizontal distances, vertical distances (elevations), horizontal angles and vertical angles accurately using various surveying instruments. After taking the measurements in …

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