Surveying
The time interval between successive transits of the moon, is

23 hours 50 minutes
24 hours 50 minutes
24 hours 10 minutes
20 hours 25 minutes

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Surveying
The rise and fall method

is less accurate than height of instrument method
quicker and less tedious for large number of intermediate sights
provides a check on the reduction of intermediate point levels
is not suitable for levelling with tilting levels

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