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Civil Engineering :: Surveying

  1. The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called

  2. A.

    brightness of telescope

    B.

    magnification of telescope

    C.

    resolving power of telescope

    D.

    none of these.


  3. Bergchrund is a topograhical feature in

  4. A.

    plains

    B.

    water bodies

    C.
    hills
    D.

    glaciated region


  5. To orient a plane table at a point P roughly south of the mid-point of two inaccessible conical hill stations A and B in the plains, a point C is selected in line with AB and table is oriented at C by bringing ab in line with ABA ray is then drawn towards P and at P the table is oriented by back ray method. The orientation so obtained, is

  6. A.

    unique and correct

    B.
    incorrect
    C.

    manifold and correct

    D.

    not reliable.


  7. Which one of the following statements is correct ?

  8. A.

    when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity

    B.

    the mean of the readings of the two verniers gives correct reading free from the eccentricity

    C.

    one vernier may be used if the readings of two verniers differ by a constant

    D.

    all the above.


  9. Pick up the correct statement from the following

  10. A.

    1 second of arc corresponds to a displacement ratio of 1:206, 300

    B.

    1 degree of arc corresponds to a displacement ratio of 1:57

    C.

    the angular errors tend to propagate themselves along a traverse as the square root of the number of stations

    D.

    the errors arising from the linear measures tend to be roughly proportional to the lengths of the lines

    E.

    all the above.


  11. The chaining on sloping ground is

  12. A.

    easier along the falling gradient

    B.

    easier along the up gradient

    C.

    equally convenient along falling as well as up gradient

    D.

    all the above.


  13. Profile levelling is usually done for determining

  14. A.

    contours of an area

    B.

    capacity of a reservoir

    C.

    elevations along a straight line

    D.

    boundaries of property


  15. The conventional sign shown in below figure represents a

  16. A.

    road bridge

    B.
    railway bridge
    C.

    canal bridge

     
    D.
    aquaduct.

  17. For indirect ranging, number of ranging rods required, is

  18. A.

    1

    B.

    2

    C.

    3

    D.

    4

    E.

    5


  19. Correction per chain length of 100 links along a slope having a rise of 1 unit in n horizontal units, is

  20. A.

    \(\frac { 1 00} { n^2 } \)

    B.

    100 n2

    C.

    \(\frac { 1 00} { n^3 } \)

    D.

    \(\frac { 100 } {n }\)