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Civil Engineering :: UPSC Civil Service Exam Questions

  1. If an element is subjected to pure shearing stress τxy then the maximum principal stress is equal to

  2. A.
    xy
    B.
    τxy/2
    C.
    τxy
    D.
    1 - (τxy)2

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  3. The wall friction of the retaining wall:

  4. A.
    decreases active earth pressure but increases passive earth pressure
    B.
    decreases passive earth pressure but increases active earth pressure
    C.
    decreases both active and passive earth pressures
    D.
    increases both active and passive earth pressures

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  5. Consider the following statements :
    The salient features of a bar chart over network are that :
    1. It is simple to draw and easy to understand.
    2. It is unable to depict interdependence of activities.
    3. It clearly distinguishes between critical and non-critical activities.
    4. It is not possible to crash activities to get optimum and minimum duration of the project.
    Which of the following statements given above are correct ?

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

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  7. Which one of the following is the best method for locating sounding to estimate the dredged material from the harbours ?

  8. A.
    Two angles from shore
    B.
    Two angles from boat
    C.
    One angle from shore and other from the boat
    D.
    Fixed intersecting ranges

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  9. An open channel carrying super critical flow is provided with a smooth expansion along the direction of flow. When no other considerations interfere, then the water surface.

  10. A.
    before transition will rise
    B.
    after transition will rise
    C.
    before transition will drop
    D.
    after transition will drop

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  11. A sewer is laid from a manhole A to a manhole B, 250 m apart along a downward gradient of 1 in 250. If the reduced level of the invert at A is 205.75 m and the height of the boring rod is 3 m, then, reduced level of the sight rail at B, is

  12. A.
    202.75 m
    B.
    206.75 m
    C.
    208.75 m
    D.
    211.75 m

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  13. A body of mass 4 kg moving at 12 m/s collides with another body of mass 8 kg and adheres to it. The resultant velocity of the total mass in m/s will be

  14. A.
    4.0
    B.
    5.0
    C.
    6.0
    D.
    7.0

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  15. A soil sample is having a specific gravity of 2.60 and a void ratio of 0.78. The water content in percentage required to fully saturate the soil at the void ratio would be

  16. A.
    10
    B.
    30
    C.
    50
    D.
    70

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  17. A rectangular channel carries a discharge of 5 m3/s. The channel is 2 m wide. What is the critical depth of the flow ?

  18. A.
    1.25 m
    B.
    1.07 m
    C.
    0.565 m
    D.
    0.86 m

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  19. The discharge per unit drawdown at the well is known as :

  20. A.
    Specific yield
    B.
    Specific storage
    C.
    Specific retention
    D.
    Specific capacity

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