Finding the location of the station occupied by the table, on the sheet by means of sighting to three well defined points whose locations have been previously plotted on the sheet, is known as

An ideal vertical curve to join two gradients, is

With the help of a Tacheometer we can measure

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

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

A levelling station is a place where

Isogonics lines are the lines having the same

The variation in magnetic declination may be

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