A staff reading taken on a point whose elevation is to be determined as on a change point is called

Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following

The type of surveying which requires least office work is

A change point is

The surveying used to determine additional details such as boundaries of fields, is called

Offsets are

Whole circle bearing of a line is preferred to a quadrantal bearing merely because

The latitude of a traverse leg is obtained by multiplying its length by

When a chain encounters a river