Effluent MCQ

Test your knowledge with important Effluent MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Effluent MCQs at Bissoy

• The temperature of 20°C is used to take BOD of _________
  ক

  7-days

  খ

  10-days

  গ

  5- days

  ঘ

  1-day
• Which of the following is used where there is no oxygen supply?
  ক

  Comminutors

  খ

  Sedimentation tank

  গ

  Mechanical mixer

  ঘ

  Screening devices
• Trickling filters are less suitable for a larger volume of effluents.
  ক

  True

  খ

  False
• Velocity channels are used to remove larger suspended particles.
  ক

  True

  খ

  False
• UASB was developed in __________
  ক

  America

  খ

  Netherlands

  গ

  London

  ঘ

  Japan
• Which of the following is not the use of anaerobic treatment?
  ক

  Achieving higher loading rates

  খ

  Low power to treat BOD

  গ

  The metabolization of organic matter

  ঘ

  High levels of microbial growth
• What is the use of venturi?
  ক

  To generate low-pressure

  খ

  To remove grit

  গ

  To generate high pressure

  ঘ

  To break the foam
• Who described the use of contactors in wastewater treatment?
  ক

  Ware and Pescod

  খ

  Arden and Lockett

  গ

  Cooper and Wheeldon

  ঘ

  Taylor and Senior
• The diameter of a conventional trickling filter is _______
  ক

  5-8 m

  খ

  5-10 m

  গ

  1-10 m

  ঘ

  8-16 m
• Which is the use of comminutors?
  ক

  To reduce the size of particles

  খ

  To remove the grit

  গ

  To remove large particles

  ঘ

  To remove small particles
• What is the function of a sedimentation tank?
  ক

  Removal of larger suspended matter

  খ

  Reduction in particle size

  গ

  Removal of grit

  ঘ

  Removal of finer matter
• Which of the following is a primary treatment?
  ক

  Sedimentation

  খ

  Activated sludge

  গ

  Sand filters

  ঘ

  Microstrainers
• Who described the disposal of antibodies and steroid wastes?
  ক

  Colovos and Tinklenberg

  খ

  Zajic and Melcher

  গ

  Smith

  ঘ

  Mbagwu and Ekwealor
• Which of the following is not a factor to investigate in a site survey?
  ক

  BOD/COD

  খ

  Sterility

  গ

  Colour

  ঘ

  Radioactivity
• Which of the following is the method for disposal of municipal solid waste?
  ক

  Incineration

  খ

  Landfilling

  গ

  Well disposal

  ঘ

  Spray irrigation