In the surveying telescopes, cross hairs are fitted in ............

The boundary of water of a still lake, represents ............

Anallatic lens is provided to ............

The true or geographical meridians through the various stations ............

Volume of the earth work may be calculated by ............

Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are kn…

The principle of working from whole to part is used in surveying because ............

The chord of a curve less than peg interval, is known as ............

The error in measured length due to incorrect holding of chain is ............