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

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

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Surveying
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

All of these
By adding their longitudes if places are in the different hemispheres
By subtracting their longitudes if places are in the same hemisphere
By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres

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