Offsets are ............

Correction for pull is ............

The contour interval is kept inversely proportional to ............

The image formed by the objective in the plane of cross hairs is ............

The method of plane tabling commonly used for establishing the instrument stations only is a ............

The plotting of small areas which can be commanded from a single station, is usually done on the plane table by the meth…

In route surveys, the most suitable method of contouring is ............

If the angle between index glass and horizon glasses of a box sextant is 40° the horizontal angle between A and B sight …

Two contour lines, having the same may cross each other only in the case of ............