An imaginary line on the surface of the earth having a constant inclination with the horizontal (slope) is called

The main principle of surveying is to work

The angle of intersection of a curve is the angle between

A change point is

While doing levelling in undulating terrain, it is preferable to set the level on:

When R is the radius of the curve (in meters), D is the degree of curve (in degrees) and length of the chord is 30 m, th…

The amount of correction due to local attraction at a place

The plotting of small areas which can be commanded from a single station, is usually done on the plane table by the meth…

In order to measure the magnetic bearing of a line, the theodolite should be provided with ___