Question

When plane table is set at any place, then the second temporary adjustment which is done is known as:-
1. Sighting
2. Orientation
3. Leveling
4. Centering

Answer 1

Correct Answer - Option 3 : Leveling

Explanation:

Plane table survey:

A plane table surveying is a graphical method of surveying in which field observation and plotting are done simultaneously helping the surveyor to compare the plotted details with actual features of the ground.

Advantages:

1. The observations and plotting are done simultaneously
2. The errors and mistakes in plotting can be checked by drawing check lines
3. Irregular objects can be plotted accurately.
4. It is less costly than theodolite surveying.
5. It is advantageous in magnetic areas.

Temporary adjustment of plane table surveying:

Setting → Leveling → Centering → Orientation