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  • Question

  • Stoneware sewers are available in size


  • Options
  • A. 10 cm
  • B. 15 cm
  • C. 20 cm
  • D. 25 cm
  • E. all the above.

  • Correct Answer
  • all the above. 

    • Waste Water Engineering problems

    Search Results

    • 1. The pH value of sewage is determined with the help of

    • Options
    • A. Imhoff Cone
    • B. turbidimeter
    • C. potentiometer
    • D. none of these.
      • Discuss
    • 2. Primary treatment of sewage consists of removal of

    • Options
    • A. large suspended organic solids
    • B. oil and grease
    • C. sand and girt
    • D. floating materials
    • E. none of these.
      • Discuss
    • 3. In trickling filter, B.O.D. is reduced to

    • Options
    • A. 30 to 40%
    • B. 40 to 60%
    • C. 60 to 80%
    • D. 80 to 90%
    • E. 95%.
      • Discuss
    • 4. Pick up the correct statement from the following :

    • Options
    • A. The water supply pipes carry pure water free from solid particles
    • B. The water supply pipes get clogged if flow velocity is less than self cleansing velocity
    • C. The sewers may be carried up and down the hills and valleys
    • D. The sewer pipes are generally laid along level hills
    • E. None of these.
      • Discuss
    • 5. For large sewers, maximum distance between manholes may be

    • Options
    • A. 50 m
    • B. 100 m
    • C. 200 m
    • D. 300 m
    • E. 400 m.
      • Discuss
    • 6. Inter-distance between ventilation columns in a sewer line is kept

    • Options
    • A. 25 to 50 m
    • B. 50 m to 100 m
    • C. 100 m to 150 m
    • D. 150 m to 300 m.
      • Discuss
    • 7. Ventilating shafts are provided to a sewer line at every

    • Options
    • A. 100 m
    • B. 150 m
    • C. 200 m
    • D. 300 m
    • E. 500 m.
      • Discuss
    • 8. For the open drain (N = 0.025) shown in the below figure, the discharge is

    • Options
    • A. 26.88 cumecs
    • B. 27.88 cumecs
    • C. 28.88 cumecs
    • D. 29.88 cumecs.
      • Discuss
    • 9. The sewer which resists sulphide corrosion, is

    • Options
    • A. Brick sewer
    • B. Cast iron sewer
    • C. R.C.C. sewer
    • D. Lead sewer
    • E. None of these.
      • Discuss
    • 10. Which one of the following part of human body withstands minimum radiation

    • Options
    • A. thyroid
    • B. kidneys
    • C. eyes
    • D. ovaries/testis.
      • Discuss

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