The true or geographical meridians through the various stations ............

Measurements taken with a wrong can be corrected by using the relation ............

Chain surveying consists of the arrangement of framework of triangles because a triangle is the only simple plane figure…

A contour map of the area is essential before proceeding with the construction of ............

The method of reversal ............

The instrument attached to the wheel of a vehicle in order to measure the distance travelled, is called ............

Back bearing of a line is equal to ............

The maximum tolerance in 20 m chain is ............

The smaller horizontal angle between the true meridian and a survey line, is known ............