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

Ina precision traverse, included angles are measured by setting the vernier ............

An instrument used for ranging is ............

A diagonal scale is used to read ............ dimensions.

Reciprocal ranging is adopted when the following is encountered ............

Overturning of vehicles on a curve can be avoided by using ............

Sensitiveness of a level tube is designated by ............

In the double application of principle of reversion, the apparent error is ............

The amount of correction due to local attraction at a place ............