Surveying
The altitude of a circumpolar star is maximum when it is

At east elongation
At lower culmination
At upper culmination
At west elongation

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Surveying
Theodolite is an instrument used for

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

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Surveying
Spring tides are caused when

None of these
Solar tidal force acts opposite to lunar tidal force
Sun and moon are in line with earth
Solar tidal force and lunar tidal force both coincide

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