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Civil Engineering :: UPSC Civil Service Exam Questions

  1. A pipeline of 5 cm diameter is reduced abruptly to 2.5 cm diameter at a section to enable measurement of the water flowing through it. The loss of head at the contraction is 0.5 m. Given that, in metric units, 2g = 4.43 and g = 3.132, the mean velocity in the reduced section will be

  2. A.
    0.5 m/sec
    B.
    1.1075 m/sec
    C.
    1.566 m/sec
    D.
    4.43 m/sec

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  3. A clay layer, 5 m thick undergoes 50% consolidation in 5 years when subjected to an average pressure increase of 50 kN/m2. If the clay layer were 10 m thick, in what period would it undergo 50% consolidation for the same pressure ?

  4. A.
    10 years
    B.
    2.5 years
    C.
    25 years
    D.
    20 years

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  5. Which one of the following is the most preferred wood for high quality and durable furniture ?

  6. A.
    Sandalwood
    B.
    Deodar wood
    C.
    Teakwood
    D.
    Shisham wood

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  7. For ornamental work, which type(s) of bricks is/ are preferred ?
    1. Silica bricks
    2. Silica lime bricks
    3. Bricks produced in autoclaves
    Select the correct answer using the code given below :

  8. A.
    1 and 3 only
    B.
    2 and 3 only
    C.
    1 only
    D.
    2 only

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  9. In case of footing on the surface of shallow depth is very dense sand, which one of the following types of failure is likely to occur?

  10. A.
    Punching shear failure
    B.
    Local shear failure
    C.
    General shear failure
    D.
    Any of the above three

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  11. For one cubic metre of brick masonry, the number of modular bricks needed is

  12. A.
    400 or less
    B.
    400 to 450
    C.
    500 to 550
    D.
    600 to 650

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  13. To produce low heat cements, it is necessary to reduce the compound

  14. A.
    C3S
    B.
    C2S
    C.
    C3A
    D.
    C4AF

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  15. The probability that the load on a scaffolding will exceed the design load of 3 tonnes is 0.15. At the same time, the probability that the strength of the scaffolding will be more than 3 tonnes is 0.85. The probability that the scaffolding will fail is

  16. A.
    0.2775
    B.
    0.1275
    C.
    0.0225
    D.
    0.0020

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  17. The dry density of a soil is 1.5 g/cc. If the saturation water content were 50%, then its saturated density and submerged density would, respectively, be

  18. A.
    1.5 g/cc and 1.0 g/cc
    B.
    2.0 g/cc and 1.0 g/cc
    C.
    2.25 g/cc and 1.25 g/cc
    D.
    2.0 g/cc and 1.50 g/cc

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  19. Consider the following soil parameters and conditions :
    1. Drainage conditions
    2. Thickness of layer
    3. Initial void ratio
    4. Over-burden pressure
    The magnitude of settlement is influenced by,

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

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