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Civil Engineering :: Water Supply Engineering

Water Supply Engineering - Section 1
Water Supply Engineering - Section 2
Water Supply Engineering - Section 3
Water Supply Engineering - Section 4
Water Supply Engineering - Section 5
Water Supply Engineering - Section 6
Water Supply Engineering - Section 7
Water Supply Engineering - Section 8

  1. Most commonly used pump for lifting water in water supply mains, is

    2. A.
    axialflow pump
    B.
    reciprocating pump
    C.
    rotary type pump
    D.
    centrifugal pumps
    E.
    none of these.

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  2. Economic height of a dam is the height corresponding to which

    3. A.
    cost of the dam per unit of storage is minimum
    B.
    amount of silting is less
    C.
    cost of dam per unit storage is maximum
    D.
    free board provided is least
    E.
    none of these.

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  3. Distribution mains of any water supply, is normally designed for its average daily requirement

    4. A.
    100%
    B.
    150%
    C.
    200%
    D.
    225%.

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  4. If pH value of water is

    5. A.
    7 water it is said to be neutral
    B.
    less than 7 it is said to be acidic
    C.
    more than 7 it is said to be alkaline
    D.
    all the above.

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  5. In pressure supply mains, water hammer pressure is reduced by providing

    6. A.
    sluice valves
    B.
    air valves
    C.
    pressure relief valves
    D.
    none of the these.

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  6. P0, P1, P2 be the populations of a city at times t0, t1 and t2 = 2t1, the saturation value of the population Ps of the city, is

    7. A.
    B.
    C.
    D.
    E.
    None of these.

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  7. Water supply system includes

    8. A.
    digging a well for water
    B.
    construction of dams
    C.
    construction of canals
    D.
    entire arrangement from source to distribution.

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  8. Corrosion of a pipe

    9. A.
    reduces its life span
    B.
    reduces its carrying capacity
    C.
    adds colour to water
    D.
    adds odour to water
    E.
    all the above.

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  9. Most satisfactory formula for an estimate of fire demand Q for a city of population P in thousands for Indian conditions, is

    10. A.
    B.
    Q = 1640 P (1 - 0.01 P)
    C.
    Q = 3180 P
    D.
    none of these.

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  10. Pick up the correct statement from the following :

    11. A.
    Detention period for plain sedimentation tanks ranges between 4 to 8 hours
    B.
    Detention period for sedimentation tanks, using coagulants usually ranges between 2 to 4 hours
    C.
    The horizontally flow velocity in sedimentation tanks, is generally limited to 0.3 m/minute
    D.
    All the above.

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