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Civil Engineering :: UPSC Civil Service Exam Questions

  1. According to Boussinesq's theory, the vertical stress at a point in a semi-infinite soil mass depends upon

  2. A.
    point load, coordinates of the point and modulus of elasticity of soil
    B.
    point load, coordinates of the point, modulus of elasticity of soil and its Poisson's ratio
    C.
    point load and coordinates of the point
    D.
    point load, coordinates of the point, modulus of elasticity of soil and its density.

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  3. A star is observed at its western elongation. If the latitude of place of observation is θ, the declination of star is δ, altitude of star at elongation is α, then the hour angle of star is given by

  4. A.
    cos H = cos δ . sec θ
    B.
    cos H = tan θ . cot δ
    C.
    cos H = tan θ . cot α
    D.
    cos H = tan δ . cot θ

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  5. A 20 m chain was found to be 10 cm too long after chaining a distance of 2000 m. It was found to be 18 cm too long at the end of the day's work after chaining a total distance of 4000 m. What is the true distance if the chain was correct before the commencement of the day's work ?

  6. A.
    3962 m
    B.
    4019 m
    C.
    3981 m
    D.
    4038 m

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  7. Timber can be made reasonably fire-resistant by

  8. A.
    soaking it in Ammonium Sulphate
    B.
    coating with Tar paint
    C.
    pumping creosote oil into timber under high pressure
    D.
    seasoning process

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  9. A jet of water issues from a 5 cm diameter nozzle, held vertically upwards, at a velocity of 20 m/sec. If air resistance consumers 10% of the initial energy of the jet, then it would reach a height, above the nozzle, of

  10. A.
    18.35 m
    B.
    19.14 m
    C.
    19.92 m
    D.
    20.00 m

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  11. A given material has Young's modulus E, modulus of rigidity G and Poisson's ratio of Young's modulus to modulus of rigidity of this material is,

  12. A.
    3.75
    B.
    3
    C.
    2.5
    D.
    1.5

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  13. The force in the member BD of the truss shown in the given figure is

  14. A.
    4 kN tensile
    B.
    4 kN compressive
    C.
    zero
    D.
    12 kN compressive

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  15. Which of the following instruments have both horizon glass and index glass ?
    1. Optical square
    2. Line ranger
    3. Box sextant
    4. Pedometer
    Select the correct answer using the code given below :

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

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  17. Which of the following equations are used for the derivation of the differential equation for water surface profile in open channel flow :
    1. Continuity equation
    2. Energy equation
    3. Momentum equation
    Select the correct answer using the codes given below :

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

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