The direction of steepest slope on the contour, is

A horizontal angle which a line makes with the true meridian through one of the extremities of the line, is called

An arbitrary surface with reference to which the elevation of points is measured and compared, is called

If the end stations of a line are free from local attraction, then the difference in between fore and back bearing of th…

Cadastral map is a map having

The imaginary line passing through the intersection of cross hairs and the optical centre of the objective, is known as

Contour interval is

Total station is

When internal angles are to be subtended by a theodolite survey for closed traverse