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MCQs

Total Questions : 64 | Page 4 of 7 pages
Question 31. Which of the bacteria is considered for biological leaching?
  1.    Ferrobacillus terrooxidans
  2.    T. ferrooxidans
  3.    all of these
  4.    T. thiooxidans
 Discuss Question
Answer: Option C. -> all of these
Question 32. The rate of degradation and microbes resistance to toxic pollutants remain better when the
  1.    individual cell along with metal is used
  2.    mixed cell population is used
  3.    individual cell is used
  4.    mixed cell population along with metals is used
 Discuss Question
Answer: Option B. -> mixed cell population is used
Question 33. Which of the following/(s) can be used for the reduction of nitrate in waste water?
  1.    Nitrosomonas europaen
  2.    Growth of Hypomicrobium in presence of added methanol
  3.    Both (a) and (b)
  4.    Micrococcus denitrificans cells encapsulated in liquid membranes
 Discuss Question
Answer: Option C. -> Both (a) and (b)
Question 34. Streptomyces griseochromogenes is reported to show a potent curative effect against
  1.    yellow blight of maize
  2.    rice blast disease
  3.    eye spot of sugarcane
  4.    milo of soybean
 Discuss Question
Answer: Option B. -> rice blast disease
Question 35. Which of the following herbicide is known to be effective against perennial shrubs, annual weeds and weeds of rice?
  1.    Herbicidin
  2.    Bialaphos
  3.    Cycloheximide
  4.    Anisomycin
 Discuss Question
Answer: Option C. -> Cycloheximide
Question 36. The heavily polluted zone of water reservoir is known as
  1.    oligosaprophytic zone
  2.    pleosaprophytic zone
  3.    none of these
  4.    mesosaprophytic zone
 Discuss Question
Answer: Option B. -> pleosaprophytic zone
Question 37. Which of the following is selectively effective against dicot weeds?
  1.    Bialaphos
  2.    Herbicidin A and B
  3.    Cycloheximide
  4.    Anisomycin
 Discuss Question
Answer: Option B. -> Herbicidin A and B
Question 38. Which of the following is known to control Colorado potato beetle?
  1.    Nomuraea rileyi
  2.    Verticillium lecauii
  3.    Metarhizium anisopliae
  4.    Beaveria bassiana
 Discuss Question
Answer: Option D. -> Beaveria bassiana
Question 39. Which of the following accumulates from factory waste?
  1.    Zoogloea ramigera
  2.    Pseudomonas putida
  3.    Pseudomonas aeruginosa
  4.    Thiobacillus
 Discuss Question
Answer: Option A. -> Zoogloea ramigera
Question 40. Which of the following subgroup/(s) belong/(s) to the Baculo viruses?
  1.    Granulosis viruses
  2.    Oryctestypes
  3.    Nuclear polyhedrosis viruses
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these

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