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Surveying

Surveying
In a tropical year, the numbers of sidereal days are

365.2224
366.2422
365.2422
365

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Surveying
If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good

cos H = tan λ/tan δ
sin A = cos δ/cos λ
sin α = sin λ/sin δ
All listed here

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Surveying
To have greatest coverage of the area, the type of photography used, is

Low oblique
High oblique
Vertical
None of these

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Surveying
Stellar astronomy deals with

Planet observations
Plane surveying
Star observations
Geodetic surveying

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Surveying
Polaris is usually observed for the determination of the azimuth when it is

At culmination
Either at culmination or at elongation
Neither at culmination nor at elongation
At elongation

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Surveying
International Date Line is located along

Greenwich meridian
Equator
180° longitude
Standard meridian

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