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Civil Engineering :: Advanced Surveying

  1. If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be

  2. A.
    1 cm
    B.
    2 cm
    C.
    3 cm
    D.
    4 cm
    E.
    5 cm.

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  3. The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is

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  5. The position of the sun when its north declination is maximum is known as

  6. A.
    vernal equinox
    B.
    Autumnal equinox
    C.
    summer solstice
    D.
    winter solstice.

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  7. Pick up the correct statement from the following :

  8. A.
    the vertical plane containing the zenith, the station of observation and the celestial pole is the observer's meridian plane.
    B.
    the angle between the direction of star in vertical plane and the direction of the star in horizontal plane is called the altitude of the star.
    C.
    the complement of the altitude of star is called the zenith distance of the star.
    D.
    all the above.

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  9. For mapping any country

  10. A.
    geodetic triangulation of greatest possible sides and accuracy is carried out
    B.
    primary triangles are broken down into secondary triangles of somewhat lesser accuracy
    C.
    secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys
    D.
    all the above.

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  11. The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as

  12. A.
    isocentre
    B.
    principal point
    C.
    perspective centre
    D.
    plumb line.

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  13. The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as

  14. A.
    ground principal point
    B.
    ground plumb point
    C.
    iso-centre
    D.
    perspective centre.

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  15. At eastern elongation, the pole star moves

  16. A.
    eastward
    B.
    westward
    C.
    northward
    D.
    southward.

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  17. Circumpolar stars

  18. A.
    rotate round the north pole
    B.
    rotate round the celestial pole
    C.
    remain always above the horizon
    D.
    are seldom seen near the pole star
    E.
    none of these.

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  19. By applying clockwise swing to right projector, maximum y-parallax is introduced in the model at

  20. A.
    position 1
    B.
    position 2
    C.
    position 4
    D.
    position 6.

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