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Civil Engineering :: Advanced Surveying

  1. When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is

  2. A.
    θ = z + δ
    B.
    θ = δ - z
    C.
    θ = 180° - (z + δ)
    D.
    θ = (z + δ) - 180°.

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  3. The distance between the minor control point and the principal point should be equal to

  4. A.
    base line of the left photograph of stereo pair
    B.
    base line of the right photograph of stereo pair
    C.
    sum of the base lines of stereo pair
    D.
    mean of the base lines of the stereo pair.

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  5. The great circle whose plane is perpendicular to the axis of rotation of the earth, is called

  6. A.
    equator
    B.
    terrestrial equator
    C.
    0° latitude
    D.
    all the above.

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  7. The Polaris describes a small circle round the pole whose radius is approximately

  8. A.
    B.
    C.
    D.
    4°.

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  9. The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called

  10. A.
    rational horizon
    B.
    true horizon
    C.
    celestial horizon
    D.
    all the above.

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  11. Pick up the correct statement from the following :

  12. A.
    The plane passing through the perspective centre of a stereo pair and a ground point, is known as basal plane
    B.
    Each pair of image points on stereo pair have their own basal plane
    C.
    Relative orienation means reconstructing the basal plane
    D.
    Relative orientation of the model is achieved only when five points within the model are cleared of Y-parallax
    E.
    All the above.

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  13. If α is the observed altitude, the refraction correction in seconds, is

  14. A.
    58" cot α
    B.
    58" tan α
    C.
    58 sin α
    D.
    58 cos α.

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  15. The value of geo-centric parallax to be added to the observed altitude of sun is

  16. A.
    9" cos α
    B.
    9" sin α
    C.
    9" tan α
    D.
    9" cot α.

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  17. With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be

  18. A.
    7 h 00 m
    B.
    7 h 30 m
    C.
    8 h 00 m
    D.
    8 h 30 m
    E.
    9 h 00 m.

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  19. A star is said to elongate

  20. A.
    when the star momentarily moves vertically
    B.
    when the angle at the star of the spherical triangle is 90°
    C.
    when the star's declination is greater than the observer's latitude
    D.
    all the above.

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