When the centers of the arcs lie on the opposite sides of the common tangent at the junction of the two curves, it is known as a ............

In reciprocal leveling, the error which is not completely eliminated, is due to ............

The sensitiveness of a level tube decreases if ............

Ramsden eye-piece consists of ............

The fundamental principle of surveying is to work from the ............

The horizontal angle between the truth meridian and magnetic meridian is known as ............

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

The principle of tacheometry is used ............

You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the met…