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Surveying

Surveying
At eastern elongation, the pole star moves

Northward
Southward
Eastward
Westward

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Surveying
The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is

3f2
2f2
f2
½f

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Surveying
Local attraction in compass surveying may exist due to

loss of magnetism of the needle
incorrect levelling of the magnetic needle
friction of the needle at the pivot
presence of magnetic substances near the instrument

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Surveying
The point at which sun's declination changes from north to south, is known as

Vernal Equinox
First point of Aeries
First point of Libra
Both (B) and (C) of the above

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Surveying
If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be

f sin θ
f sec θ
f cos θ
f tan θ

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Surveying
At lower culmination, the pole star moves

Southward
Westward
Eastward
Northward

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MORE MCQ ON Surveying

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