While doing levelling in undulating terrain, it is preferable to set the level on:

In precision theodolite traverse for roads and railways, the angular error of closure should not exceed

All level reading are taken to:

When the centers of the arcs lie on the opposite sides of the common tangent at the junction of the two curves, it is kn…

Cadastral map is a map having

The method of measuring distance by pacing is chiefly used in

During levelling if back sight is more than foresight

The distance between terminal points computed from a subsidiary traverse run between them, is generally known as

A discrepancy is the difference between