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Environmental Engineering - Civil Engineering - section-1
  1. The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is

    2. A.

     Circle method
    B.

     Equivalent pipe method
    C.

     Electrical analysis method
    D.

     Hardy cross method

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  2. Residual chlorine in water is determined by

    3. A.

     Starch iodide method
    B.

     Orthotolidine method
    C.

     Both (A) and (B)
    D.

     None of the above

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  3. The means of access for inspection and cleaning of sewer line is known as

    4. A.

     Inlet
    B.

     Manhole
    C.

     Drop manhole
    D.

     Catch basin

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  4. The phenolic compounds in public water supply should not be more than

    5. A.

     0.1 ppm
    B.

     0.01 ppm
    C.

     0.001 ppm
    D.

     0.0001 ppm

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  5. The water carriage system of collection of waste product

    6. A.

     Is cheaper in initial cost than dry conservancy system
    B.

     Requires treatment before disposal
    C.

     Creates hygienic problem
    D.

     All of the above

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  6. In chlorination, with the rise in temperature of water, death rate of bacteria

    7. A.

     Increases
    B.

     Decreases
    C.

     Remains unaffected
    D.

     None of the above

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  7. The characteristics of fresh and septic sewage respectively are

    8. A.

     Acidic and alkaline
    B.

     Alkaline and acidic
    C.

     Both acidic
    D.

     Both alkaline

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  8. An egg shaped section of sewer

    9. A.

     Is economical than circular section
    B.

     Provides self cleansing velocity at low discharges
    C.

     Is more stable than circular section
    D.

     Is easy to construct

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  9. Most suitable section of sewer in separate sewage system is

    10. A.

     Rectangular section
    B.

     Circular section
    C.

     Standard form of egg shaped sewer
    D.

     Modified egg shaped section

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  10. A sewer that receives the discharge of a number of house sewers is called

    11. A.

     House sewer
    B.

     Lateral sewer
    C.

     Intercepting sewer
    D.

     Sub-main sewer

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