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Civil Engineering :: GATE Exam Questions

  1. Sewage treatment in an oxidation pond is accomplished primarily by :

  2. A.
    alga-bacterial symbiosis
    B.
    algal photosynthesis only
    C.
    bacterial oxidation only
    D.
    chemical oxidation only

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  3. Presence of excess nitrates in river water indicates :

  4. A.
    recent pollution of water with sewage
    B.
    past pollution of water with sewage
    C.
    immediate pollution of water with sewage
    D.
    no pollution of water with sewage

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  5. Two steel plates each of width 150 mm and thickness 10 mm are connected with three 20 mm diameter rivets placed in a zig-zag pattern. The pitch of the rivets is 75 mm and gauge is 60 mm. If the allowable tensile stress is 150 MPa, the maximum tensile force that the joint can withstand is

  6. A.
    195.66 kN
    B.
    195.00 kN
    C.
    192.75 kN
    D.
    225.00 kN

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  7. The relation that must hold for the flow to be irrotational is

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  9. A single bay single storey portal frame has hinged left support and a fixed right support. It is loaded with uniformly distributed load on the beam. Which one of the following statements is true with regard to the deformation of the frame ?

  10. A.
    It would sway to the left side
    B.
    It would sway to the right side
    C.
    It would not sway at all
    D.
    None of the above

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  11. To have zero active pressure intensity at the tip of a wall in cohesive soil, one should apply a uniform surcharge intensity of

  12. A.
    2c tan α
    B.
    2c cot α
    C.
    - 2c cot α
    D.
    - 2c tan α

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  13. The following characteristics pertain to the sand filters used in water industry.

    1. Filtration rate is 1 to 4 m3 (m2 day).
    2. Typical duration of operation in one run is 24 to 72 hours.
    3. Operating cost is low.

    Which of the above characteristics pertain to slow sand filters ?

  14. A.
    I, II and III
    B.
    I and II
    C.
    II and III
    D.
    I and III

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  15. Effective length of a rafter member between two nodes at a distance L, perpendicular to the plane of the truss, is : .

  16. A.
    2.00 L
    B.
    0.85
    C.
    1.50
    D.
    1.00 L

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  17. Consistency Index for a clayer soil is [LL = Liquid Limit, PL = Plastic Limit, PI = Plas-ticity Index, W - natural moisture content]

  18. A.
    B.
    C.
    LL - PL
    D.
    0.5 w

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  19. The slope of the elastic curve at the free end of a cantilever beam of span L, and with fluxural rigidity EI, subjected to uniformly distributed load of intensity w is

  20. A.
    wL3/6EI
    B.
    wL3/3EI
    C.
    wL4/8EI
    D.
    wL3/2EI

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