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Surveying

Surveying
Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as

Tilt
Tip
Swing
None of these

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Surveying
The latitude (λ) of a place and the altitude (α) of the pole are related by

λ = 180° - α
λ = α
λ = 90° - α
λ = α - 90°

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Surveying
Places having same latitude

Lie on the parallel of the latitude
Are equidistant from both the poles
Are equidistant from the nearer pole
All listed here

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Surveying
On vertical photographs, height displacement is

Positive for points above datum
Zero for points vertically below the air station
Negative for points below datum
All listed here

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Surveying
The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is

B = b/fH
B =f/bH
B = bH/f
B = H/bf

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Surveying
The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between

Zenith and pole
Horizon and equator
Pole and horizon
Equator and zenith

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