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MCQs

Total Questions : 53 | Page 2 of 6 pages
Question 11. Microbes that exhibit a low tolerance or have become adapted to low concentrations of soluble heavy metals in the leach suspension should be selected for bioleaching.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 12. Which of the following microbial leaching techniques depend on the working volume of less than ten cubic meter (<10m3)?
  1.    Laboratory Scale
  2.    Pilot-Plant Scale
  3.    Industrial Scale
  4.    Commercial Scale
 Discuss Question
Answer: Option B. -> Pilot-Plant Scale
Answer: (b).Pilot-Plant Scale
Question 13. FCC stands for _________
  1.    Fluid Cracking Catalyst
  2.    Fluid Catalytic Cracking
  3.    Fluid Chemical Cracking
  4.    Fluid Chemical Catalyst
 Discuss Question
Answer: Option B. -> Fluid Catalytic Cracking
Answer: (b).Fluid Catalytic Cracking
Question 14. The effects of bacterial activity decreases with time and distancefrom the injection well.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 15. In which form of microbial product is Leuconostoc applied in microbial oil recovery?
  1.    Biomass
  2.    Surfactants
  3.    Polymers
  4.    Solvents
 Discuss Question
Answer: Option A. -> Biomass
Answer: (a).Biomass
Question 16. Clostridium is used as which metabolite in microbial oil recovery?
  1.    Solvents, Acid and Gases
  2.    Biomass, Surfactants and Polymers
  3.    Solvents, Polymers and Gases
  4.    Acids, Surfactants and Biomass
 Discuss Question
Answer: Option A. -> Solvents, Acid and Gases
Answer: (a).Solvents, Acid and Gases
Question 17. Which is the most used bacteria strain in microbial oil recovery?
  1.    Bacillus
  2.    Pseudomonas
  3.    Arthrobacterium
  4.    Micrococcus
 Discuss Question
Answer: Option A. -> Bacillus
Answer: (a).Bacillus
Question 18. How the flow pattern in clogging mechanism is achieved?
  1.    By increasing the pressure
  2.    By increasing the viscosity
  3.    Bydecrease in microbial cell mass
  4.    By increasing the cell mass of microbes
 Discuss Question
Answer: Option D. -> By increasing the cell mass of microbes
Answer: (d).By increasing the cell mass of microbes
Question 19. Which of these is not a direct treatment on hemicellulose?
  1.    Cellulase production
  2.    Hexose fermentation
  3.    Syngas fermentation
  4.    Pentose fermentation
 Discuss Question
Answer: Option C. -> Syngas fermentation
Answer: (c).Syngas fermentation
Question 20. Which of the following is an undesirable microbe in endogenic silage microorganism with simple sugar as the substrate?
  1.    Homolactic
  2.    Propionic acid bacteria
  3.    Heterolactic
  4.    Yeast
 Discuss Question
Answer: Option D. -> Yeast
Answer: (d).Yeast

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