An invert is taken when the point is ............

While measuring a chain line between two stations A and B intervened by a raised ground ............

Direct method of contouring is ............

Which of the following methods of offsets involves less measurements on the ground?

The main principle of surveying is to work ............

A method of differential leveling is used in order to find the difference in elevation between points when ............

A base line in a chain survey ............

The maximum tolerance in 20 m chain is ............

A lemniscate curve will not be transitional throughout, if its deflection angle, is ............