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Civil Engineering :: UPSC Civil Service Exam Questions

  1. In "full face" method of constructing tunnel, the first operation relates to

  2. A.
    removal to bottom portion
    B.
    excavation of one drift in the centre
    C.
    removal of top portion
    D.
    excavation being done along the perimeter

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  3. Which one of the following statements best defines a 'level surface'?

  4. A.
    A horizontal surface every element of which is normal to plumb line
    B.
    A curved surface every element of which is perpendicular to the spheroidal shape of the earth
    C.
    A plane surface which is perpendicular at all points to the direction of gravity
    D.
    A curved surface which is perpendicular to the direction of gravity at every point

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  5. In a shape test of aggregate, which one of the following gives the correct slot for flakiness index of a material passing 50 mm sieve and retained on 40 mm sieve ?

  6. A.
    25 mm
    B.
    27 mm
    C.
    81 mm
    D.
    30 mm

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  7. Ruling gradient on highways as per IRC in plane terrain is

  8. A.
    1 in 30
    B.
    1 in 60
    C.
    1 in 100
    D.
    1 in 200

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  9. For a symmetrical continuous beam as shown in the figure given above, which one of the following is correct in respect of distribution factors at B ?

  10. A.
    δBA : δBC = 3:4
    B.
    δBA : δBC = 1:2
    C.
    δBA : δBC = 3:2
    D.
    δBA : δBC = 3:8

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  11. For the retaining wall shown in the given figure, if the stress at the heel is zero, then the maximum storage 'H' will be specific gravity of the material of the wall = 2.25

  12. A.
    7.5 m
    B.
    5 m
    C.
    4 m
    D.
    3 m

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  13. A short column of external diameter D1 and internal diameter D2 carries an external load W. For no-tension condition, the eccentricity will be :

  14. A.
    (D12 - D22)/8D2
    B.
    (D21 - D22)/8D2
    C.
    (D12 - D22)/8D1
    D.
    (D1 - D2)2 /8D1

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  15. The following four hydrological features have to be estimated or taken as inputs before one can compute the flood hydrograph at any catchment outlet:
    1. Unit hydrograph
    2. Rainfall hydrograph
    3. Infiltration index
    4. Base flow
    The correct order in which they have to be employed in the computations is

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

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  17. Which one of the following statements is correct ?
    A forebay in a hydel system is provided at the junction of :

  18. A.
    the power channel and the tail race channel
    B.
    the tail race channel and the penstock
    C.
    the penstock and the turbine
    D.
    the power channel and the penstock

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  19. Consider the following statements :
    Higher water-cement ratio in concrete results in
    1. stronger mix.
    2. better workable mix.
    3. a weak mix.
    4. less bleeding.

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

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