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MCQs

Total Questions : 132 | Page 11 of 14 pages
Question 101. Which technique is not used to manage saline soils?
  1.    End-of-pipe
  2.    Subsurface drainage
  3.    Skimming well technology
  4.    Leaching
 Discuss Question
Answer: Option A. -> End-of-pipe
Answer: (a).End-of-pipe
Question 102. Which of the following product is not used to reduce the soil alkalinity?
  1.    Sphagnum peat
  2.    Elemental sulfur
  3.    Organic mulches
  4.    Baking powder
 Discuss Question
Answer: Option D. -> Baking powder
Answer: (d).Baking powder
Question 103. Which of the following is not an after effects of the toxic metals released during tailings?
  1.    Erosion
  2.    Sinkholes
  3.    Contamination
  4.    Nutrient absorption
 Discuss Question
Answer: Option D. -> Nutrient absorption
Answer: (d).Nutrient absorption
Question 104. Which of the following compound is used in the extraction of gold mining?
  1.    Liquid Nitrogen
  2.    Cyanide
  3.    Oxygen
  4.    Ammonia
 Discuss Question
Answer: Option B. -> Cyanide
Answer: (b).Cyanide
Question 105. Which of the following condition is caused due to tainings?
  1.    Acid mine drainage
  2.    Nutrient absorption
  3.    Air contamination
  4.    Afforestation
 Discuss Question
Answer: Option A. -> Acid mine drainage
Answer: (a).Acid mine drainage
Question 106. Mill tailings is radioactive.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 107. Tailings is an output of which phase of mining?
  1.    Extraction
  2.    Beneficiation
  3.    Processing
  4.    Remediation
 Discuss Question
Answer: Option B. -> Beneficiation
Answer: (b).Beneficiation
Question 108. The persistence of the organic compounds depends on the presence of halogen.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 109. Which of the following is used in bio degradation of xenobiotics?
  1.    Enzymes
  2.    Chemicals
  3.    Physical sorting
  4.    PAHs
 Discuss Question
Answer: Option A. -> Enzymes
Answer: (a).Enzymes
Question 110. Non-halogen based xenobiotics are converted into _________
  1.    Catechol
  2.    Sulphur
  3.    Acrylamide
  4.    Acid
 Discuss Question
Answer: Option A. -> Catechol
Answer: (a).Catechol

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