Surveying
If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will

increase
decrease
either ‘A’ or ‘B’
not change

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Surveying
The necessary geometrical condition for triangulation adjustment is:

The sum of the three angles of a plane triangle should be 180°
The sum of the eight angles of a braced quadrilateral should be 360°
The sum of the angles around a station should be 360°
All listed here

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