To orient a plane table at a point with two inaccessible points, the method generally adopted is

The tacheometric method of contouring is particularly suitable

The working from whole to the part is done in surveying in order to ensure that

The angle of intersection of a contour and a ridge line, is

The systematic errors which persist and have regular effects in the performance of a survey operation are due to

A line which joins subsidiary stations on the main lines of a chain survey network and serves to facilitate taking offse…

Closed contours with higher value inside represents a

Traversing is generally done by

The angle between the back tangent and forward tangent of a curve is known as