The representation of general topography of a very flat terrain is possible only ............

While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its t…

The permissible error in chaining for measurement with chain on rough or hilly ground is ............

The shape of vertical curve generally provided is ............

Cumulative error that occur in chaining are proportional to ............

In a simple curve, "External distance" is the distance between ............

The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's ............

Straight, parallel and widely spaced contours represent ............

In the surveying telescopes, cross hairs are fitted in ............