A staff reading taken on a point whose elevation is to be determined as on a change point is called ............

The degree of the curve is the angle subtended by a chord of ............ length.

In leveling, the correction for curvature (in meters) is equal ............

The brightness of the image ............ the magnifying power.

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

The horizontal angle between the true meridian and a survey line is called ............

The imaginary line passing through the intersection of cross hairs and the optical centre of the objective, is known as …

The theodolite method off setting out a curve involves ............

Closed contours of decreasing values toward their centre, represent ............