Question

In plane table surveying, the accessory used for sighting the target is:

• A. {Alidade}
• B. {Plumbing fork}
• C. {Trough compass}
• D. {Sextant}

Hint:

The alidade is essential in plane table surveying for accurate sighting and mapping.

Answer 1

The Correct Option is A

Step 1: In plane table surveying, an alidade is used to sight objects and draw survey lines directly onto the map. Step 2: Other accessories serve different functions: - Plumbing fork: Used to center the table. - Trough compass: Determines direction. - Sextant: Measures angles in navigation. Thus, the correct answer is (A) Alidade.