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MCQs

Total Questions : 53 | Page 1 of 6 pages
Question 1. Which one of the following is not included in the mechanism of bioleaching?
  1.    Acidolysis
  2.    Complexolysis
  3.    Redoxolysis
  4.    Hydrolysis
 Discuss Question
Answer: Option D. -> Hydrolysis
Answer: (d).Hydrolysis
Question 2. Microbially catalyzed redox reaction leads to metal ________
  1.    Mobilization
  2.    Immobilization
  3.    Reduction
  4.    Oxidation
 Discuss Question
Answer: Option A. -> Mobilization
Answer: (a).Mobilization
Question 3. Which of the following is the most common bacteria used for bioleaching?
  1.    Spirillum
  2.    Coccus
  3.    Bacillus
  4.    Streptococcus
 Discuss Question
Answer: Option C. -> Bacillus
Answer: (c).Bacillus
Question 4. Which genera helps in bioaccumulation?
  1.    Bacillus
  2.    Aspergillus
  3.    Agaricus
  4.    Mycenae
 Discuss Question
Answer: Option B. -> Aspergillus
Answer: (b).Aspergillus
Question 5. What kind of bacteria benefits the most from direct leaching?
  1.    Autotrophs
  2.    Heterotrophs
  3.    Chemotrophs
  4.    Chemolithotrophs
 Discuss Question
Answer: Option A. -> Autotrophs
Answer: (a).Autotrophs
Question 6. Which of following is not a focus in conversing microbial communities to biofuel?
  1.    Substrate Flexibility
  2.    High productivity
  3.    Higher number of products in one process
  4.    Tolerance to stress
 Discuss Question
Answer: Option C. -> Higher number of products in one process
Answer: (c).Higher number of products in one process
Question 7. Which of the following is the correct phosphate pathway?Which Of The Following Is The Correct Phosphate Pathway?
  1.    a
  2.    b
  3.    c
  4.    d
 Discuss Question
Answer: Option A. -> a
Answer: (a).a
Question 8. At which step in the below diagram, phosphorus is released?At Which Step In The Below Diagram, Phosphorus Is Released?...
  1.    Incineration
  2.    Ash
  3.    Bioleaching
  4.    Anaerobic digestion
 Discuss Question
Answer: Option D. -> Anaerobic digestion
Answer: (d).Anaerobic digestion
Question 9. What kind of pH is most suitable for bioleaching in majority of the metals?
  1.    At very low pH
  2.    At very high pH
  3.    At low pH
  4.    At high pH
 Discuss Question
Answer: Option C. -> At low pH
Answer: (c).At low pH
Question 10. Which among the following is the most suitable particle size of solid waste?
  1.    Order of few tens of millimeter
  2.    Order of few tens of centimeter
  3.    Order of few tens of micrometer
  4.    Order of few tens of decimeter
 Discuss Question
Answer: Option C. -> Order of few tens of micrometer
Answer: (c).Order of few tens of micrometer

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