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Waste Water Engineering - Section 5
Waste Water Engineering - Section 6
Waste Water Engineering - Section 7
Waste Water Engineering - section-8
  1. If q is the average sewage flow from a city of population P, the maximum sewage flow

    2. A.

     Q = [(4 + )/(18 + )] q
    B.

     Q = [(18 + P)/(4 + )] q
    C.

     Q = [(18 + )/(4 + )] q
    D.

     Q = [(5 + )/((15 + )] q

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  2. Fresh sewage may become stale in

    3. A.

     One hour
    B.

     Two to three hours
    C.

     Three to four hours
    D.

     Six hours

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  3. The grit and silt of the grit chambers, may not be used for

    4. A.

     Raising low lying areas by dumping
    B.

     Concreting
    C.

     Both A and B
    D.

     Neither A nor B

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  4. When drainage to sewage ratio is 20, the peak dry weather flow is

    5. A.

     20% of the design discharge
    B.

     Slightly less than 5% of the design discharge
    C.

     Slightly more than 5% of the design discharge
    D.

     None of these

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  5. The sewerage system consists of

    6. A.

     House sewer
    B.

     Lateral sewer
    C.

     Branch sewer
    D.

     All of these

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