Surveying
The main object of the astronomer to obtain

Astronomical longitude
Astronomical bearing
Astronomical latitude
All of these

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Surveying
The necessary geometrical condition for triangulation adjustment is:

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

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Surveying
Theodolite is an instrument used for

measurement of vertical angles only
measurement of horizontal angles only
measurement of both horizontal and vertical angles
tightening the capstan-headed nuts of level tube

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