The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known
A)levelling
B)centering
C)orientation
D)setting.

Question

Quizplus · Accepted Answer

Orientation is the process of aligning the survey plan or map on the plane table with corresponding features on the ground, so that lines on the map are parallel to their respective lines on the ground.

The Operation of Revolving a Plane Table About Its Vertical