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Civil Engineering :: Surveying

  1. The staff intercept will be

  2. A.

    greater farther off the staff is held

    B.

    smaller, farther off the staff is held

    C.

    smaller, nearer the staff is held

    D.

    same, wherever the staff is held.


  3. Horizontal distances obtained tacheometerically are corrected for

  4. A.

    slope correction

    B.

    temperature correction

    C.

    refraction and curvature correction

    D.

    all the above.


  5. If the long chord and tangent length of a circular curve of radius R are equal the angle of deflection, is

  6. A.

    30°

    B.

    60°

    C.

    90°

    D.

    120°

    E.

    150°.


  7. Pick up the correct statement from the following :

  8. A.

    an observation or the resulting reading with the level on a levelling staff is called sight

    B.

    a back sight is the first sight taken after setting up the instrument in any position

    C.
    the first sight on each change point is a fore sight
    D.

    the second sight on each change point is a back sight

    E.

    all the above.


  9. In setting up a plane table at any station

  10. A.

    levelling is done first

    B.

    centering is done first

    C.

    both levelling and centering are done simultaneously

    D.

    orientation is done first.


  11. Ranging is an operation of

  12. A.

    reconnaissance

    B.

    judging the distance

    C.

    determination of slope

    D.

    establishing intermediate points between terminals.


  13. Pick up the correct statement from the following :

  14. A.

    mistakes arise from inattention, inexperience or carelessness

    B.

    systematic errors persist and have regular effects in the survey performances

    C.

    accidental errors occur inspite of every precaution is taken

    D.
    all the above.

  15. Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known

  16. A.

    plane surveys

    B.

    geodetic surveys

    C.

    geographical surveys

    D.

    topographical surveys.


  17.  

    In a theodolite

  18. A.

    the telescope axis is perpendicular to transit axis

    B.

    the axis of rotation is perpendicular to transit axis

    C.

    the telescope axis, the transit axis and the rotation axis pass through the centre of theodolite

    D.

    all the above.


  19. Whole circle bearing of a line is preferred to a quadrantal bearing merely because

  20. A.

    bearing is not completely specified by an angle

    B.

    bearing is completely specified by an angle

    C.

    Sign of the correction of magnetic declination is different in different quadrants

    D.

    its trigonometrical values may be extracted from ordinary tables easily.