logo

CuriousTab

CuriousTab

Discussion

Home ‣ Civil Engineering ‣ Waste Water Engineering Comments
  • Question

  • Pick up the correct statement from the following :


  • Options
  • A. anaerobic bacteria flourish in the absence of oxygen
  • B. aerobic bacteria flourish in the presence of oxygen
  • C. facultative bacteria flourish with or without oxygen
  • D. all the above.

  • Correct Answer
  • all the above. 

    • Waste Water Engineering problems

    Search Results

    • 1. In areas where rainy season is limited to a few months, the type of sewerage system recommended is

    • Options
    • A. combined system
    • B. partially separate system
    • C. separate system
    • D. none of these.
      • Discuss
    • 2. The value of Chezy's constant

      is used in

    • Options
    • A. Chezy's formula
    • B. Bazin's formula
    • C. Kutter's
    • D. Manning's formula.
      • Discuss
    • 3. The discharge per unit plan area of a sedimentation tank, is generally called

    • Options
    • A. over flow rate
    • B. surface loading
    • C. over flow velocity
    • D. all the above.
      • Discuss
    • 4. The sewerage system consists of

    • Options
    • A. house sewer
    • B. lateral sewer
    • C. branch sewer
    • D. main sewer
    • E. all of these.
      • Discuss
    • 5. The suitable cross-section of sewers to carry combined flow, is

    • Options
    • A. circular
    • B. egg shaped
    • C. rectangular
    • D. horse shoe shaped.
      • Discuss
    • 6. The sewers

    • Options
    • A. must be of adequate size to avoid over flow
    • B. must flow under gravity to full
    • C. must be laid at least 2 to 3 m deep to collect /water from the basements
    • D. all the above.
      • Discuss
    • 7. For detecting the nitrites in the sewage, the matching colour may be developed by adding

    • Options
    • A. Pottassium permanganate
    • B. Sulphuric acid and napthamine
    • C. Phenol-di-sulphuric acid pottassium hydroxide
    • D. None of these.
      • Discuss
    • 8. Aerobic activity is maximum

    • Options
    • A. in freshly produced sewage
    • B. at sewer pipes
    • C. in sewer treatment plants
    • D. none of these.
      • Discuss
    • 9. Hazin's formula is used for the settlement velocity of the particles of diameter

    • Options
    • A. less than 0.01 mm
    • B. less than 0.05 mm
    • C. less than 0.1 mm
    • D. greater than 0.1 mm.
      • Discuss
    • 10. If n is the rugosity coefficient, r is the hydraulic depth, s is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula evolved by

    • Options
    • A. Chezy
    • B. Manning
    • C. Bazin
    • D. Kutter.
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.