Question

In setting up a plane table at a station A, the corresponding point on the plan was NOT accurately centred above A. If displacement of A was 20 cm in direction at right angles to the ray, then how much on the plan would be consequent displacement of a point from its true position (if scale is 1 cm = 2 m)?

• A. 2 mm
• B. 0.4 mm
• C. 1 mm
• D. 0.03 mm

Answer 1

Answer: (C)