Surveying
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?

Measuring angle at one station and distance from other
Measuring distance from two points on traverse line
Measuring angles to the point from at least two stations
Measuring angle and distance from one transit station

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Surveying
Normal tension is that pull which

makes the correction due to pull equal to zero
is used at the time of standardising the tape
neutralizes the effect due to pull and sag
makes the correction due to sag equal to zero

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