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Civil Engineering :: UPSC Civil Service Exam Questions

  1. A concentrated load acting on the surface of a soil produces a stress of 19.1 kPa at a depth of 1 m below it. Using Boussinesq's expression, the stress at 2 m depth is

  2. A.
    9.55 kPa
    B.
    6.37 kPa
    C.
    4.775 kPa
    D.
    4.37 kPa

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  3. Consider the following statements :
    Seasoning of timber results is
    1. increased strength
    2. increased durability.
    3. reduced resilience.
    Of these statements :

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

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  5. Gypsum is added to Portland cement during its manufacture so that it may

  6. A.
    accelerate the setting time
    B.
    retard the setting time
    C.
    decrease the burning temperature
    D.
    facilitate grinding

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  7. If the velocity potential φ = 4 xy, what are the x and y components of velocity at the point(1, 4) ?

  8. A.
    u = - 16, v = - 4
    B.
    u = - 4, v = - 16
    C.
    u = 16, v = - 4
    D.
    u = 16, v = 16

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  9. Unit cost of any item of work can be found by using

  10. A.
    specifications
    B.
    value analysis
    C.
    economic analysis
    D.
    rate analysis

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  11. Which one of the following different types of submerged soils is susceptible to liquefaction under earthquake shocks ?

  12. A.
    Dense sand
    B.
    Soft clay
    C.
    Loose silt
    D.
    Fissured clay

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  13. In the given figure, σ1 and the σ2 and maximum and minimum principal stresses. In order that the resultant stress on the plane AB is the value of θ should be

  14. A.
    30°
    B.
    45°
    C.
    60°
    D.
    75°

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  15. Eutrophication of water bodies is caused by the

  16. A.
    discharge of toxic substances
    B.
    excessive discharge of nutrients
    C.
    excessive discharge of suspended solids
    D.
    excessive discharge of chlorides

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  17. For laminar flow through a circular tube, the average velocity at a section is

  18. A.
    the same as that at the centre of tube
    B.
    two-thirds the velocity at the centre of the tube
    C.
    half the velocity at the centre of the tube
    D.
    dependent on the pressure at the section

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  19. In the figure shows, the effective pressure at C is given by (symbols have the usual meanings)

  20. A.
    (h + z) yw
    B.
    zyw
    C.
    zySub
    D.
    hyw + zysat

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