Surveying
After fixing the plane table to the tripod, the main operations which are needed at each plane table station are
(i) Levelling
(ii) Orientation(
iii) Centering
The correct sequence of these operations is

(i), (iii), (ii)
(iii), (i), (ii)
(ii), (iii), (i)
(i), (ii), (iii)

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Surveying
Transit rule of adjusting the consecutive coordinates of a traverse is used where

linear measurements are more accurate than angular measurements
angular measurements are more accurate than linear measurements
All of these
linear and angular measurements of the traverse are of equal accuracy

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