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Civil Engineering :: UPSC Civil Service Exam Questions

  1. Water is to be pumped at the rate of 0.025 m3/s from a 4 m deep ground level tank to an overhead tank. The difference in levels of the full tank levels of these tanks is 16 m. What is the approximate power required for operating a 65% efficient centrifugal pump ?

  2. A.
    7.5 kW
    B.
    6.0 kW
    C.
    3.9 kW
    D.
    3.2 kW

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  3. If in a concrete mix the fineness modulus of coarse aggregate is 7.6, the fineness modulus of fine aggregate is 2.8 and the economical value of the fineness modulus of combined aggregate is 6.4, then the proportion of fine aggregate is

  4. A.
    25%
    B.
    %
    C.
    50%
    D.
    %

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  5. A rectangular footing 1 m x 2 m is placed at a depth of 2 m in a saturated clay having an unconfined compressive strength of 100 kN/m2. According to Skempton, the net ultimate bearing capacity is

  6. A.
    420 kN/m2
    B.
    412.5 kN/m2
    C.
    385 kN/m2
    D.
    350 kN/m2

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  7. A floating body is in stable equilibrium

  8. A.
    when its metacentric height is zero
    B.
    when the centre of gravity of the body is below the centre of buoyancy
    C.
    when its metacentre is above the centre of gravity of body
    D.
    in none of the above situations

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  9. For three-dimensional movement of a weight, which one of the following is most suitable ?

  10. A.
    Chain hoist
    B.
    Winch
    C.
    Crane
    D.
    Jack

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  11. The following data pertain to a sewage sample :
    Initial D.O = 10 mg/l
    Final D.O. = 10 mg/1 Dilution to 1%
    The BOD of the given sewage sample is

  12. A.
    8 mg/1
    B.
    10 mg/1
    C.
    100 mg/1
    D.
    2 mg/1

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  13. In a simply supported beam of span 'l', each end is restrained against torsion, compression flange being unrestrained. According to IS : 800, the effective length of the compression flange will be equal to

  14. A.
    0.65l
    B.
    0.85l
    C.
    0.75l
    D.
    0.70l

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  15. Which one of the following is the correct statement ? Penetration to know bitumen grade is measured in

  16. A.
    one-hundredth of mm
    B.
    one-tenth of mm
    C.
    one-tenth of an inch
    D.
    one micron

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  17. Which one of these methods of Tunnel Construction is not suitable in rocks ?

  18. A.
    Full face method
    B.
    Compressed air method
    C.
    Heading and benching method
    D.
    Drift method

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  19. Consider the following statements regarding uniform flow in an open channel :
    1. Energy grade line, water surface and bed slope are parallel to each other.
    2. Froude number does not vary from section to section.
    3. Velocity of water is the same at all points of the cross-section.
    Of these statements :

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

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