Surveying
The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as

Pivot station
Eccentric station
Satellite station
False station

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Surveying
The meridian of a place is

An arc of the great circle which passes through the place and is perpendicular to the equator
A great circle passing through the place and the poles
A great circle whose plane is perpendicular to the axis of rotation and it also passes through the place
A semi-circle which passes through the place and is terminated at the poles

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Surveying
Dumpy level is most suitable when

All of these
the instrument is to be shifted frequently
many readings are to be taken from a single setting of the instrument
fly levelling is being done over long distance

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