If D is the angle of deflection of a simple curve of radius R, the length of its long chord, is ............

The tacheometric method of contouring is particularly suitable ............

An imaginary line tangential to the longitudinal curve of the level at the centre of the tie is called ............

Subtense tacheometry is generally preferred to if ground is ............

The latitude and departure of a traverse line are both positive when the whole circle bearing of the line lies in the ..…

When the latitudes and departures are so adjusted that the algebraic sum of the latitudes and departures are equal to ze…

The principle of chain surveying is to divided the area into a number of ............

Hydrographic surveys deal with the mapping of ............

If the length of chain is found to be short on testing, it can be adjusted by ............