Surveying
The type of surveying which requires least office work is

tacheomefry
plane table surveying
theodolite surveying
trigonometrical levelling

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Surveying
Theodolite is an instrument used for

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

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Surveying
Spring tides are caused when

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

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Surveying
Contour interval is

Larger for accurate works
Inversely proportional to the scale of the map
Directly proportional to the flatness of ground
Larger if the time available is more

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