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Civil Engineering :: Advanced Surveying

  1. If the general ground level of any area is 10% of the flying height, the principal points may be used as the centres of radial directions for small scale mapping even in tilted photograph up to

  2. A.
    B.
    C.
    D.

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  3. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as

  4. A.
    satellite station
    B.
    eccentric station
    C.
    false station
    D.
    pivot station.

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  5. The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is

  6. A.
    500 m
    B.
    1000 m
    C.
    1500 m
    D.
    2000 m.

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  7. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

  8. A.
    by subtracting their longitudes if places are in the same hemisphere
    B.
    by adding their longitudes if places are in the different hemispheres
    C.
    by subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
    D.
    all the above.

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  9. While making astronomical observations, the observer is mainly concerned with

  10. A.
    the direction of the vertical, the axis of rotation of the instrument
    B.
    the direction of the poles of the celestial sphere
    C.
    the direction of the star from the instrument
    D.
    all the above.

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  11. At western elongation, the pole star moves

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

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  13. Pick up the correct statement from the following :

  14. A.
    Refraction correction is zero when the celestial body is in the zenith
    B.
    Refraction correction is 33' when the celestial body is on the horizon
    C.
    Refraction correction of celestial bodies depends upon their altitudes
    D.
    all the above.

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  15. The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude :

  16. A.
    mean sun
    B.
    true sun
    C.
    vernal equinox
    D.
    star
    E.
    all the above.

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  17. By raising the z-column of right projector, maximum y-parallax is introduced in the model at

  18. A.
    position 1
    B.
    position 2
    C.
    position 4
    D.
    position 6
    E.
    position 4 and 6.

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  19. The height displacement on a vertical photograph

  20. A.
    increases as the horizontal distance increases from the principal point
    B.
    increases as the ground elevation increases
    C.
    decreases as the flying height increases
    D.
    all the above.

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