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Civil Engineering :: Surveying

  1. A star is said to elongate

  2. A.

     When the star momentarily moves vertically

    B.

     When the angle at the star of the spherical triangle is 90°

    C.

     When the star

    D.

     All the above


  3. If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is

  4. A.

     7.5 m

    B.

     25 m

    C.

     50 m

    D.

     75 m


  5. The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between

  6. A.

     Horizon and equator

    B.

     Equator and zenith

    C.

     Zenith and pole

    D.

     Pole and horizon


  7. The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between

  8. A.

     Horizon and equator

    B.

     Zenith and pole

    C.

     Equator and zenith

    D.

     Pole and horizon


  9. The flying height of the camera is 1,000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is

  10. A.

     52 m

    B.

     62 m

    C.

     72 m

    D.

     82 m


  11. The stereo plotting instruments are generally manufactured on the principle of

  12. A.

     Optical projection

    B.

     Optical mechanism projection

    C.

     Mechanical projection

    D.

     All the above


  13. The true and mean suns occupy the same meridian at the same time on

  14. A.

     April 15

    B.

     June 14

    C.

     September 1

    D.

     All the above


  15. If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is

  16. A.

     πR²E/90°

    B.

     πR²E/180°

    C.

     πR²E/270°

    D.

     πR²E/360°


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

  18. A.

     Satellite station

    B.

     Eccentric station

    C.

     False station

    D.

     Pivot station


  19. In a spherical triangle ABC right angled at C, sin b equals to

  20. A.

     sin c sin B

    B.

     cos c cos B

    C.

     tan c tan B

    D.

     sin c cos B