The adjustment of horizontal cross hair is required particularly when the instrument is used for ............

A deflection angle in a traverse is equal to the ............

In leveling operation ............

Accuracy of 'fix' by two point problem, is ............

The approximate formula for radial or perpendicular offsets from the tangent, is ............

The angle between the back tangent and forward tangent of a curve (in degrees) and length of the chord is 30 m, then the…

When the whole circle circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC w…

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

The accuracy of measurement in chain surveying does not depend upon ............