The angle of field of the telescope ............

The collimation method for obtaining the reduced levels of points does not provide a check on ............

The value of additive constant for the tacheometer varies from ............

Centering error of a theodolite produces an error ............

The two point problem and three point problem are methods of ............

Which one of the following methods can be used for contour interpolation?

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

Removal of parallax, may be achieved by focusing ............

The reduced level of a point on the ground is called ............