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Civil Engineering :: UPSC Civil Service Exam Questions

  1. Consider the following factors pertaining to flow through soil:
    1. Hydraulic gradient
    2. Grain size
    3. Void ratio
    4. Cross-sectional area of the sample.
    Of these, the factors affecting permeability include

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

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  3. In drawing AOA networks and making time computations, the following processes are involved :
    1. Activity listing
    2. Work breakdown structure
    3. Activity time allotment
    4. Consideration of available resources for each activity
    5. Activity dependencies
    6. Float computations
    7. Backward path computation
    8. Project duration
    9. Forward path computation
    What is the correct sequence of the processes given above ?

  4. A.
    1, 2, 4, 3, 9, 7, 5, 6, 8
    B.
    2, 1, 4, 3, 5, 9, 8, 7, 6
    C.
    4, 1, 3, 2, 9, 5, 7, 8, 6
    D.
    Any sequence can be followed but 6 and 7 will be the last two ones

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  5. Timber can be made more fire resistant by

  6. A.
    dipping and steeping process
    B.
    hot and cold open tank treatment
    C.
    charring
    D.
    Sir Abel's process

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  7. Which one of the following is correct in respect of the influence line for the bending moment at one-fourths of the span from left support of a prismatic beam simply supported at ends ?

  8. A.
    It is composed of straight lines only
    B.
    It is composed of curved lines only
    C.
    It is composed of straight and curved line
    D.
    It is parabolic

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  9. Consider the following statements :
    In a uni-dimensional stress system, the principal plane is defined as one on which the
    1. shear stress is zero.
    2. normal stress is zero.
    3. shear stress is maximum.
    4. normal stress is maximum.
    Of these statements :

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

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  11. Which one of the following pairs relating to flumes carrying open channel flow is correctly matched ?

  12. A.
    N-modular flume....Flow is unaffected by drowning
    B.
    Venturi flume....Standing wave forms at the throat
    C.
    Venturi flume....Flow at the throat is at less than critical velocity
    D.
    Standing wave flume....Hump is not provided at the throat

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  13. A cylindrical vessel with a constant plane area of 1 m2 is rotated about its vertical axis such that the liquid inside the vessel is about to spill. If the height of the vessel is 2 m and the height of the paraboloid at 1 m, then the volume (in m3) of the liquid in the vessel will be

  14. A.
    2
    B.
    1.5
    C.
    1.0
    D.
    0.5

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  15. Critical hydraulic gradient ic is given by (where, G = specific gravity of solids e = void ratio)

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  17. Consider the following statements with reference to oxidation ponds :
    1. They require high initial investments
    2. They have low operational cost
    3. They are also called stabilization ponds.
    Which of the statements given above are correct ?

  18. A.
    1 and 2
    B.
    2 and 3
    C.
    1 and 3
    D.
    1, 2 and 3

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  19. The length, coefficient of thermal expansion and Young's modulus of bar 'A' are twice that of bar 'B'. If the temperature of both bars is increased by the same amount while preventing any expansion, then the ratio of stress developed in bar A to that in bar B will be

  20. A.
    2
    B.
    4
    C.
    8
    D.
    16

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