Closed traverse is suitable in the survey of

The most accurate measurement of the length of a long survey lines is made by using?

The graduated ring of a prismatic compass is graduated in

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

A levelling station is a place where

The representative fraction of the scale 1cm = 1 kilometer will be

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

Closed contours of decreasing values towards their centre, represent

An example for instrumental error in levelling is