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  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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  3. Residual chlorine in water is determined by

  4. A.

     Starch iodide method

    B.

     Orthotolidine method

    C.

     Both (A) and (B)

    D.

     None of the above

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

  6. A.

     Inlet

    B.

     Manhole

    C.

     Drop manhole

    D.

     Catch basin

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

  8. A.

     0.1 ppm

    B.

     0.01 ppm

    C.

     0.001 ppm

    D.

     0.0001 ppm

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  9. The water carriage system of collection of waste product

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

  12. A.

     Increases

    B.

     Decreases

    C.

     Remains unaffected

    D.

     None of the above

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  13. The characteristics of fresh and septic sewage respectively are

  14. A.

     Acidic and alkaline

    B.

     Alkaline and acidic

    C.

     Both acidic

    D.

     Both alkaline

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  15. An egg shaped section of sewer

  16. 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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  17. Most suitable section of sewer in separate sewage system is

  18. A.

     Rectangular section

    B.

     Circular section

    C.

     Standard form of egg shaped sewer

    D.

     Modified egg shaped section

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

  20. A.

     House sewer

    B.

     Lateral sewer

    C.

     Intercepting sewer

    D.

     Sub-main sewer

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