Question

Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas are known as:

• A. plane surveys
• B. geodetic surveys
• C. geographical surveys
• D. topographical surveys

Hint:

Geodetic surveys consider Earth’s curvature — essential for national mapping grids.

Answer 1

The Correct Option is B

Geodetic surveys are conducted on a large scale and take into account the curvature of the Earth. These surveys are used to establish a national grid of control points, which are then used for the accurate mapping of vast areas.