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Civil Engineering :: Irrigation

Irrigation - Section 1
Irrigation - Section 2
Irrigation - section 3

  1. According to Bligh's creep theory, percolating water flows along

    2. A.

    straight path under the foundation of the dam
    B.

    circular path under the foundation of the dam
    C.

    the outline of the base of the foundation of the dam
    D.

    none of these.

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  2. The width of a meander belt is the transverse distance between

    3. A.

    apex point of one curve and apex point of the reserve curve
    B.

    apex point and the crossing
    C.

    two banks of meandering river
    D.
    none of these.

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  3. The sensitivity of a rigid module, is

    4. A.

    2.00
    B.

    1.50
    C.

    1.00
    D.

    0.50
    E.

    zero

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  4. An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as
    5. A.

    non-modular outlet
    B.

    semi-modular outlet
    C.

    flexible modular outlet
    D.

    right modular outlet.

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  5. Canals constructed for draining off water from water logged areas, are known
    6. A.

    drains
    B.

    nundation canals
    C.

    valley canals
    D.

    contour canals
    E.

    ridge canals.

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  6. A minimum of 90 cm free board is provided if the discharge in the canal is between

    7. A.

    30 to 33 cumecs
    B.

    30 to 60 cumecs
    C.

    Over 60 cumecs
    D.

    Over 100 cumecs

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  7. If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
    8. A.

    Q = 1.71 BD1/2
    B.

    Q = 1.71 BD
    C.

    Q = 1.71 BD3/2
    D.
    Q = 1/71 BD2/3
     
    E.

    none of these.

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  8. If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is
    9. A.

    R(θ + tan θ)
    B.

    R(θ + cot θ)
    C.

    R2(θ + tan θ)
    D.

    R2(θ + cot θ)
    E.

    R(θ + tan θ)

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  9. Lacy's regime condition is obtained if

    10. A.

    silt grade in the channel is variable
    B.

    discharge in the channel is variable
    C.

    silt charge in the channel is variable
    D.

    channel flows in unlimited, incoherent alluvium of the same character as that transported material.

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  10. In Montague type fall

    11. A.

    a straight glacis is provided
    B.

    a circular glacis is provided
    C.

    a parabolic glacis is provided
    D.

    no glacis is provided.

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