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Civil Engineering :: GATE Exam Questions

  1. A borrow pit soil has a dry density of 17 kN/m3. How many cubic meters of this soil will be required to construct an embankment of 100 m3 volume with a dry density of 16 kN/m3.

  2. A.
    94 m3
    B.
    106 m3
    C.
    100 m3
    D.
    90 m3

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  3. The ultimate bearing capacity of a soil is 300 kN/m2. The depth of foundation is 1 m and unit weight of soil is 20 kN/m3. Choosing a factor of safety of 2.5, the net safe bearing cacpacity is

  4. A.
    100 kN/m2
    B.
    112 kN/m2
    C.
    800 kN/m2
    D.
    100.5 kN/m2

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  5. One of the following statements is true with regards to bodies that float or are submerged in liquids :

  6. A.
    For a body wholly submerged in a liquid the stability is ensured if the centre of buoyancy is below the centre of gravity of the body
    B.
    For a body floating in a liquid the stability is ensured if the centre of buoyancy is below the centre of gravity of the body
    C.
    For a body floating in a liquid the stability is ensured if the centre of buoyancy and the centre of gravity, regardless of the relative positions of the centre of buoyancy and gravity
    D.
    For a body floating in a liquid the stability is ensured if the centre of buoyancy is below the centre of gravity and the metacentre is above both the centres of gravity and buoyancy.

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  7. Transition curves are provided on the approach to horizontal curves in order to :

  8. A.
    increase jerk to allowable levels
    B.
    minimize the length of the horizontal curve
    C.
    simplify the laying-out and construction of the horizontal curve
    D.
    reduce jerk to allowable levels

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  9. The flow of water (mass density = 1000 kg/m3 and kinematic viscosity = 10-6 m2/s) in a commercial pipe, having equivalent roughness ks as 0.12 mm, yields an average shear stress at the pipe boundary = 600 N/m2. The value of ks/δ' (δ' being the thickness of laminar sub-layer) for this pipe is

  10. A.
    0.25
    B.
    0.50
    C.
    6.0
    D.
    8.0

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  11. The unconfined compressive strength of a 'stiff clay' falls in the range

  12. A.
    less than 50 kN/m2
    B.
    50 to 100 kN/m2
    C.
    100 to 200 kN/m2
    D.
    above 200 kN/m2

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  13. What is the equivalent single wheel load of a dual wheel assembly carrying 20, 440 N each for pavement thickness of 20 cm ? Centre to centre spacing of tyres is 27 cm and the distance between the walls of tyres is 11 cm

  14. A.
    27, 600 N
    B.
    32, 300 N
    C.
    40, 880 N
    D.
    30, 190 N

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  15. A person standing on the bank of a canal drops a stone on the water surface. He notices that the disturbance on the water surface in not travelling upstream. This is because the flow in the canal is

  16. A.
    sub-critical
    B.
    super-critical
    C.
    steady
    D.
    uniform

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  17. A circular sewer 2 m diameter has to carry a discharge of 2 m3/s when flowing nearly full. What is the minmum required slope to initiate the flow ? (Assume Manning's n = 0.015)

  18. A.
    0.00023
    B.
    0.000036
    C.
    0.000091
    D.
    0.000014

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  19. The material that exhibits the same elastic properties in all the directions at a point, is said to be

  20. A.
    homogeneous
    B.
    orthotropic
    C.
    visco-elastic
    D.
    isotropic

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