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Civil Engineering :: GATE Exam Questions

  1. A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm2. Assuming modular ratio as 10, the stress (N/mm2) in concrete is

  2. A.
    11
    B.
    9
    C.
    7
    D.
    5

  3. A river 5 m deep consists of a sand bed with saturated unit weight of 20 kN/m3 . vw = 9.81 kN/m3. The effective vertical stress at 5 m from the top of sand bed is

  4. A.
    41 kN/m2
    B.
    51 kN/m2
    C.
    55 kN/m2
    D.
    53 kN/m2

  5. Biochemical oxygen demand (BOD) of waste water is a measure of

  6. A.
    total concentration of a biochemicals
    B.
    total concentration of organic matter
    C.
    concentration of biodegradable organic matter
    D.
    concentration of chemically oxidisable matter

  7. The effective width of a reinforced concrete T beam flange under compression, according to IS : 456-1978, given I0 is the distance between the adjacent zero moment points, b is the breadth of the rib and D is the thickness of the flange, is

  8. A.
    B.
    I0 + 6D
    C.
    D.

  9. In using the data from a plate bearing test for determining the modulus of subgrade reaction, the value of settlement to be used is :

  10. A.
    1.25 mm
    B.
    2.50 mm
    C.
    3.75 mm
    D.
    1.75 mm

  11. The net effective cross sectional area calculated in the steel angle tension member design, accounts for:

  12. A.
    the tensile force and bolt holes
    B.
    the eccentricity of the end connections and the bolt holes
    C.
    the effectiveness of the tack connection along the length
    D.
    the effectiveness of the end connection

  13. A light house of 120 m height is just visible above the horizon from a ship. The correct distance (m) between the ship and the light house considering combined correction for curvature and refraction, is

  14. A.
    39.098
    B.
    42.226
    C.
    39098
    D.
    42226

  15. Water distribution systems are sized to meet the

  16. A.
    maximum hourly demand
    B.
    average hourly demand
    C.
    maximum daily demand and fire demand
    D.
    average daily demand and fire demand.

  17. Determine the correctness of otherwise of the following Assertion [A] and the Reason [R].

    Assertion [A] : The crown of the outgoing larger diameter sewer is always matched with the crown of incoming smaller diameter sewer.

    Reason [R] : It eliminates backing up of sewage in the incoming smaller diameter sewer.

  18. A.
    Both [A] and [R] are true and [R] is the correct reason for [A]
    B.
    Both [A] and [R] are true and [R] is not the correct reason for [A]
    C.
    Both [A] and [R] are false
    D.
    [A] is true but [R] is false

  19. For the structure shown below, the vertical deflection at point A is given by

  20. A.
    B.
    C.
    Zero
    D.