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Civil Engineering :: Water Resources Engineering

Water Resources Engineering - Section 1
Water Resources Engineering - Section 2
Water Resources Engineering - Section 3

  1. Pick up the correct statement from the following :

    2. A.
    Perched aquifer is found in unconfined aquifer
    B.
    The top surface of the water held in the perched aquifer, is known as perched water table
    C.
    Perched aquifer is formed in unfined accquifer if an impervious layer exists
    D.
    All the above.

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  2. In the derivation of Thiem's formula , the following assumption is not applicable

    3. A.
    The aquifer is homogeneous and isotropic
    B.
    Flow lines are radial and horizontal
    C.
    The slope of the water surface is too small
    D.
    The well has been sunk up to the surface of the unconfined aquifer
    E.
    None of these.

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  3. A well penetrates to 30 m below the static water table. After 24 hours of pumping at 31.40 litres/minute, the water level in a test well at a distance of 80 m is lowered by 0.5 m and in a well 20 m away water is lowered by 1.0 m. The transmissibility of the auifer, is

    4. A.
    1.185 m2/minute
    B.
    1.285 m2/minute
    C.
    1.385 m2/minute
    D.
    1.485 m2/minute
    E.
    1.585 m2/minute.

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  4. Shrouding is provided in

    5. A.
    cavity type tube wells
    B.
    slotted type tube wells
    C.
    strainer type tube wells
    D.
    perforated type tube wells.

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  5. The efficiency of a pump may be taken as

    6. A.
    0.55
    B.
    0.60
    C.
    0.65
    D.
    0.70

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  6. Consumptive use of a crop during growth, is the amount of

    7. A.
    interception
    B.
    transpiration
    C.
    evaporation
    D.
    all the above.

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  7. For calculating the evaporation rate over a reservoir surface E = 0.771 (1.465 - 0.00732 B) (0.44 - 0.007375 V) (pe - pa), the equation is given by

    8. A.
    Roohwer's, formula in M.K.S.
    B.
    Roohwer's formula in F.P.S.
    C.
    Dalton's formula in F.P.S.
    D.
    Dalton's formula in M.K.S.

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  8. For the estimate of high floods in fan-shaped catchment, the formula used is

    9. A.
    Dicken's formula
    B.
    Ryve's formula
    C.
    Inglis formula
    D.
    none of these.

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  9. Burge formula cumecs is based upon

    10. A.
    rainfall and drainage area
    B.
    run off and drainage area
    C.
    drainage area and its shape
    D.
    drainage area.

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