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Surveying

Surveying
At eastern elongation, the pole star moves

Northward
Westward
Eastward
Southward

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Surveying
The length of a parallel of λ latitude between two meridians is equal to difference in longitudes multiplied by

tan λ
sin λ
cot λ
cos λ

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Surveying
The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as

Isocenter
Plumb point
Perspective centre
Principal point

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Surveying
A Nautical mile is

1855.109 m
One minute arc of the great circle passing through two points
All of these
One minute arc of the longitude

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Surveying
If the distance between the projectors is altered by a movement along X-axis of one projector,

The length of the air base is increased
y-parallax is not affected
The scale of the model is altered
All listed here

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Surveying
The Polaris remains below horizon at

50° N Latitude
5° S latitude
10° N
Equator

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