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Civil Engineering :: Advanced Surveying

  1. The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is

  2. A.
    altitude and azimuth system
    B.
    declination and hour angle system
    C.
    declination and right ascension system
    D.
    declination and altitude system
    E.
    azimuth and declination system.

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  3. In a tropical year, the number of sidereal days, are

  4. A.
    365
    B.
    365.2224
    C.
    365.2422
    D.
    366.2422
    E.
    366.2224.

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  5. Pick up the correct statement from the following :

  6. A.
    Sidereal time at any instant is equal to the hour angle of the first point of Aries
    B.
    Local sidereal time of any place is equal to the right ascension of its meridian
    C.
    Sidereal time is equal to the right ascension of a star at its upper transit
    D.
    All the above.

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  7. Polaris is usually observed for the determination of the azimuth when it is

  8. A.
    at culmination
    B.
    at elongation
    C.
    neither at culmination nor at elongation
    D.
    either at culmination or at elongation.

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

  10. A.
    λ = α
    B.
    λ = 90° - α
    C.
    λ = α - 90°
    D.
    λ = 180° - α.

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  11. 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

  12. A.
    B.
    C.
    D.
    all the above.

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  13. Places having same latitude

  14. A.
    lie on the parallel of the latitude
    B.
    are equidistant from the nearer pole
    C.
    are equidistant from both the poles
    D.
    are equidistant from the equator
    E.
    all the above.

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

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  17. The difference in longitude of two places expressed in time is equal to the difference in their

  18. A.
    sidereal time
    B.
    apparent solar time
    C.
    mean solar time
    D.
    all the above.

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  19. The scale of a vertical photograph of focal length f taken from height of H metres above M.S.L., at a point of reduced level h, is

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