The method of measuring distance by pacing is chiefly used in ............

An axis about which the telescope can be rotated in a horizontal plane is called ............

Which of the following methods of contouring is most suitable for hilly terrain?

Dumpy level is most suitable when ............

The line of collimation method of reduction of levels, does not provide a cheek on ............

Radiation plane table survey is the best suited when ............

An imaginary line tangent to the longitudinal curve of the bubble tube at its middle points is called ............

The suitable contour interval for a map with scale 1 : 10000 is ............

A lemniscate curve between the tangents is transitional throughout, if the polar deflection angle of its apex is equal t…