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Civil Engineering :: UPSC Civil Service Exam Questions

  1. Consider the following statements :
    If a simply supported beam of uniform cross-section is subjected to a clockwise moment at the left support and an equal anticlockwise moment at the right support, then the
    1. B.M.D. will be in the shape of a rectangle.
    2. S.F.D. will be a straight line coinciding with the base.
    3. deflection curve will be in the shape of a circular arc.
    Of these statements :

  2. 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

  3. Which one of the following related to domestic potable water quality is correct?

  4. A.
    Turbidity (on Silica scale) is 15-20 ppm or mg/lit.
    B.
    Colour (on Cobalt scale) is 15-25 ppm or mg/lit.
    C.
    Hardness (expressed as Ca CO3 equivalent) is 75-115 ppm or mg/lit
    D.
    BOD is 20 ppm or mg/lit

  5. Which one of the following pairs in not correctly matched ?

  6. A.
    Lame's constant : Thick cylinder
    B.
    Macaulay's method : Deflection of beams
    C.
    Euler's method : Theory of columns
    D.
    Eddy's theorem : Torsion of shafts.

  7. BOD is preferred to COD as an index of sewage concentration because

  8. A.
    BOD represents both carbonaceous and nitrogenous organic matter while COD may indicate carbonaceous matter only
    B.
    BOD test is easier to perform and gives more reliable result
    C.
    BOD relates specifically to putrescible organic matter which is the most objectionable sewage constituent
    D.
    COD relates to the impurities which can only removed by chemical treatment which is expensive

  9. Consider the following systems :
    1. Trusses and purlins
    2. Suspension system
    3. Flat grid roof
    4. Shells
    When these are used in single deck industrial structures, the correct sequence in increasing order of spans will be

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

  11. A clay layer 3 m deep is sandwiched by a pervious material. The soil reaches 90% consolidation in 3 years. At another site, the same clay layer is bounded by impervious boundary at the bottom and sand at the top. What is the time taken by this layer to reach 90% settlement ?

  12. A.
    9 years
    B.
    12 years
    C.
    15 years
    D.
    21 years

  13. What is the distance through which the tongue rail moves laterally at the toe of the switch for movement of trains called ?

  14. A.
    Flangeway clearance
    B.
    Heel divergence
    C.
    Throw of the switch
    D.
    None of the above

  15. Presence of which one of the following in water is the major cause of depression paralysis, blindness and/or birth defects ?

  16. A.
    cadmium
    B.
    Chromium
    C.
    Manganese
    D.
    Mercury

  17. Consider a close-coiled helical spring of radius R, subjected to a load P. The spring consists of n turns of wire with wire radius r. The stiffness of the spring is


  18. Force of buoyancy on a floating body equals

  19. A.
    total pressure on the vertical projection of the body
    B.
    total pressure on the horizontal projection of the body
    C.
    weight of the liquid equal to the volume of the body
    D.
    weight of the liquid equal to the immersed volume of the body