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MCQs

Total Questions : 110 | Page 4 of 11 pages
Question 31. Which of the following is not an objective of composting?
  1.    Reduction of mass
  2.    Elimination of toxic substances
  3.    Stabilization
  4.    Incineration
 Discuss Question
Answer: Option D. -> Incineration
Answer: (d).Incineration
Question 32. Which of the following is known to decompose the organic matter of wastes?
  1.    Composting
  2.    Cooking
  3.    Decomposing
  4.    Burning
 Discuss Question
Answer: Option A. -> Composting
Answer: (a).Composting
Question 33. What is the method that fills in gas into the landfills?
  1.    Vermicomposting
  2.    In-situ aeration
  3.    Incineration
  4.    Recycling
 Discuss Question
Answer: Option B. -> In-situ aeration
Answer: (b).In-situ aeration
Question 34. What of the following microorganisms have a major role in compositing?
  1.    Bacteria
  2.    Fungi
  3.    Plants
  4.    Actinomycetes
 Discuss Question
Answer: Option C. -> Plants
Answer: (c).Plants
Question 35. Pre-treatment of the wastes by composting leads to greenhouse effect.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 36. Which of the following undesirable and waste material is neither gas nor liquid?
  1.    Water waste
  2.    Oxygen
  3.    Liquid waste
  4.    Solid waste
 Discuss Question
Answer: Option D. -> Solid waste
Answer: (d).Solid waste
Question 37. Which of the following is not a result of mishandling of solid waste?
  1.    Odor
  2.    Hydrolysis of sugar
  3.    Fire
  4.    Dysentery
 Discuss Question
Answer: Option B. -> Hydrolysis of sugar
Answer: (b).Hydrolysis of sugar
Question 38. Which of the following are not categorized as hazardous wastes?
  1.    Garbage
  2.    Industry wastes
  3.    Hospital wastes
  4.    Laboratory wastes
 Discuss Question
Answer: Option A. -> Garbage
Answer: (a).Garbage
Question 39. Which of the following is both inorganic and organic?
  1.    Sewage Sludge
  2.    Liquid crystalline
  3.    Natural gas
  4.    Semi crystalline
 Discuss Question
Answer: Option A. -> Sewage Sludge
Answer: (a).Sewage Sludge
Question 40. Disposal is the initial stage during solid waste management.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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