Surveying
The zenith is the point on the celestial sphere

North of observer
West of observer
South of observer
East of observer

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Surveying
Theodolite is an instrument used for

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

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Surveying
Pick up the correct statement for horizontal photographs.

The lines parallel to the negative plane are projected as parallel lines
The two sides of a road meet at the vanishing point
Parallel lines do not appear parallel in central projection
All listed here

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