EXAMIANS
The moon rotates round the earth once in every
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Closed contours, with higher value inwards, represent a
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In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as
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The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is
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Detailed plotting is generally done by
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If two points differing by 1° of latitude and of the same longitude is 110 km apart on the earth, then two astronomical positions on the moon is about
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If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is
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Latitude of a place is the angular distance from
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The parallax equation Δp = BmΔh/H - h is applicable to entire overlap of the photographs only if parallax is measured
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The rise and fall method of levelling provides a complete check on
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