The diaphragm of a stadia theodolite is fitted with two additional ............

A traverse deflection angle is ............

The line of sight is kept as high above ground surface as possible to minimize the error in the observed angles due to .…

Agate cap is fitted with ............

Ranging is the process of ............

An imaginary line tangential to the longitudinal curve of the level at the centre of the tie is called ............

A staff reading taken on a bench mark or a point known elevation is called ............

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

When the angular and linear measurements are equally precise in traversing, the balancing of a traverse in done by .....…