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Civil Engineering :: GATE Exam Questions

  1. A parabolic curve is used to connect a 4% upgrade with a 2% downgrade as shown in the below figure. The highest point on the summit is at a distance of (measured horizontally from the first tangent point - (FTP)

  2. A.
    50 m
    B.
    60 m
    C.
    75 m
    D.
    100 m

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  3. A deep cut of 7 m has to be made in a clay with unit weight 16 kN/m3 and a cohesion of 25 kN/m2. What will be the factor of safety if one has to have a slope angle of 30° ? Stability number is given to be 0.178 (from Taylor's chart) for a depth factor of 3.

  4. A.
    0.80
    B.
    1.1
    C.
    1.25
    D.
    1.0

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  5. An inverted siphon is a

  6. A.
    device for distributing septic tank effluent to a soil absorption system
    B.
    device for preventing overflow from elevated water storage tank
    C.
    device for preventing crown corrosion of sewer
    D.
    section of sewer which is dropped below the hydraulic grade line in order to avoid an obstacle.

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  7. The main constituents of gas generated during the anaerobic digestion of sewage sludge are :

  8. A.
    carbon dioxide and methane
    B.
    methane and ethane
    C.
    carbon dioxide and carbon monoxide
    D.
    carbon monoxide and nitrogen

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  9. A weir on a permeable foundation with downstream sheet pile is shown in the figure below. The exit gradient as per Khosla's method is

  10. A.
    1 in 6.0
    B.
    1 in 5.0
    C.
    1 in 3.4
    D.
    1 in 2.5

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  11. Which one of the following set of values give the minimum clear cover (in mm) for the main reinforcements in the slab, beam, column and footing, respectively, according to IS : 456-1978 ?

  12. A.
    20, 25, 30, 75
    B.
    5, 15, 25, 50
    C.
    15, 25, 40, 75
    D.
    none of the above

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  13. Two flow patterns are represented by their stream functions ψ1 and ψ2 as given below:
    ψ1 = x2 + y2, ψ2 = 2xy
    If these two patterns are superimposed on one another, the resulting streamline pattern can be represented by one of the following :

  14. A.
    A family of parallel straight lines
    B.
    A family of circles
    C.
    A family of parabolas
    D.
    A family of hyperbolas

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  15. The forces in members 'a, b, c' in the truss shown are, respectively

  16. A.
    P, , 0
    B.
    , P, 0
    C.
    P, P, P
    D.
    , , 0

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  17. The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is

  18. A.
    3000 mm
    B.
    4600 mm
    C.
    4750 mm
    D.
    6400 mm

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