In case of a double line river, contours are

The telescope of a Dummy level

A staff reading taken on a bench mark or a point of known elevation is called

A plumb line is

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

If 'n' is the number of sides, then the total sum of interior angles of a closed traverse should be

In order to determine the natural features such as valleys, rivers, lakes etc., the surveying preferred is

A reverse curve consists of

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