A line which joins subsidiary stations on the main lines of a chain survey network and serves to facilitate taking offsets to objects located at great distances from the main survey lines as called

Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of pla…

Which of the following instruments can be used for the direct measurement of directions?

An invert is taken when the point is

The method of finding out the difference in elevation between two points for eliminating the effect of curvature and ref…

Contour lines

Trapezoidal formula is also known as

The first temporary adjustment of a prismatic compass is centering, levelling, for all

The most reliable method of plotting a theodolite traverse is