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Civil Engineering :: Surveying

  1. The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is

  2. A.

    28.8 secs

    B.

    41.25 secs

    C.

    14.52 secs

    D.

    25.05

    E.

    none of these


  3. If i is the stadia distance, f is the focal length and d is the distance between the objective and vertical axis of the techeometer, the multiplying constant, is

  4. A.

    f/i

    B.

    i/f

    C.

    (f + d)

    D.

    f/d.


  5. The back staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a point is 1.345 m, the reduced level of the point, is

  6. A.

    502.685 m

    B.

    501.345 m

    C.

    501.340 m

    D.

    504.030 m

    E.

    502.585 m.


  7. It is more difficult to obtain good results while measuringhorizontal distance by stepping

  8. A.

    up-hill

    B.

    down-hill

    C.

    in low undulations

    D.

    in plane areas.


  9. The additional lines which are measured to show the correctness of the chain surveying are called:

  10. A.

    check clines

    B.

    proof lines

    C.

    tie lines

    D.

    all of these.


  11. If deflection angles are measured in a closed traverse, the difference between the sum of the right-hand and that of the left hand angles should be equal to

  12. A.
    B.

    90°

    C.

    180°

    D.

    360°


  13. Locating the position of a plane table station with reference to three known points, is known as

  14. A.

    intersection method

    B.

    radiation method

    C.

    resection method

    D.

    three point problem.


  15. If D is the degree of the curve of radius R, the exact length of its specified chord, is

  16. A.

    radius of the curve x sine of half the degree

    B.

    diameter of the curve x sine of half the degree

    C.

    diameter of the curve x cosine of half the degree

    D.

    diameter of the curve x tangent of half the degree.


  17. Correction per chain length of 100 links along a slope of 뱡 is

  18. A.

    \(\frac { 1.5a^2 } { 100 }\)

    B.

    \(\frac { 1.5a } { 100 }\)

    C.

    \(\frac { 1.5a^3 } { 100 }\)

    D.

    \( { 1 .5a^3} { } \)


  19. If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping

  20. A.

    it is possible to set offsets correctly on east side

    B.

    it is possible to set offsets correctly on east side

    C.

    it is not possible to set offsets correctly on west side

    D.

    it is possible to set offsets correctly on both sides.