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Civil Engineering :: UPSC Civil Service Exam Questions

  1. What will be the curve lead for a 1 in 8 1/2 turnout taking off from a straight broad gauge track?

  2. A.
    28.49 m
    B.
    21.04 m
    C.
    14.24 m
    D.
    7.45 m

  3. A timber beam of 100 mm width and 200 mm depth is reinforced with two steel plates of 100 mm width and 5 mm thickness as shown in figures.

    Which one of the following statements is correct for the same value of bending stress in the timber ?

  4. A.
    Moment of resistance in figure I will be more than that in figure II
    B.
    Moment of resistance in figure II will be more than that in figure I
    C.
    Moment of resistance in figure I will be equal to that in figure II
    D.
    No logical comparison can be made

  5. The following statements relate to the pressure exerted by a fluid on a Submerged curved surface :
    1. The vertical component of hydrostatic force acting on a submerged curved surface acts through the centre of volume of the fluid directly above the submerged area.
    2. The horizontal component of the force acting on a curved surface is the hydrostatic force acting on the vertical projection of the curved surface.
    3. The resultant force on a curved surface acts on the bottom of th6 curved surface.
    Of these statements :

  6. A.
    1, 2 and 3 are correct
    B.
    2 and 3 are correct
    C.
    1 and 2 are correct
    D.
    1 and 3 are correct

  7. The lost time due to starting delay on a traffic signal is noted to be 3s, the actual green time is 25s and yellow time is 3s. How much is the effective green time ?

  8. A.
    31s
    B.
    28s
    C.
    25s
    D.
    22s

  9. Consider the following locations of a turnout:
    1. Tongue rail
    2. Lead rail
    3. Toe of switch
    4. Crossing.
    Which is the correct sequence for a train to pass over the turnout from the facing direction?

  10. A.
    3 - 1 - 2 - 4
    B.
    4 - 2 - 1 - 3
    C.
    3 - 2 - 1 - 4
    D.
    4 - 1 - 2 - 3

  11. Which one of the following expresses the height of rise or fall of a liquid in a capillary tube ?(w = Specific weight of the liquid α = Angle of contact of the liquid surface σ = Surface tension)


  12. Given that Plasticity Index (PI) of local soil = 15 and PI of sand = zero, for a desired PJ of 6, the percentage of sand in the mix should be

  13. A.
    70
    B.
    60
    C.
    40
    D.
    30

  14. Two closely-coiled springs A and B of the same material, same wire and same number of turns are subjected to an axial load of W. The mean diameter of spring A is half that of spring B. The ratio of deflection of spring B to that of spring A will be

  15. A.
    8
    B.
    4
    C.
    1/4
    D.
    1/8

  16. A column ABCD (2y1 x 2y2) of rectangular section carries a load P at Z having the co-ordinates (x, y) as shown in the given figure.
    If the compressive streses are taken as positive and area A = 2y1 x 2y2 = 4y1 y2 and the moment of inertia about x and y axis being Ixx and Iyy respectively, then the stress at the corner D is


  17. What are leaping weirs ?

  18. A.
    sewage flow measuring devices
    B.
    storm regulators
    C.
    velocity control devices
    D.
    sewer out falls