Levelling is a branch of surveying objects of which is to establish points at a given elevation or at different elevations with respect to given or assumed datum.

Levelling is a branch of surveying objects of which is to establish points at a given elevation or at different elevations with respect to given or assumed datum. Correct Answer True

The first operation is required to enable the works to be designed while the second operation is required in the setting out of all kinds of engineering works.

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