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MCQs

Total Questions : 65 | Page 2 of 7 pages
Question 11. Micro-algae are an essential food source in rearing which of the following marine molluscs?
  1.    Zooplankton
  2.    Shrimp
  3.    Marine gastropods
  4.    Bacteria
 Discuss Question
Answer: Option D. -> Bacteria
Answer: (d).Bacteria
Question 12. Which of the following are found in abundance in coastal saline water bodies?
  1.    Oxygen
  2.    NaCl
  3.    Nitrogen
  4.    Carbon monoxide
 Discuss Question
Answer: Option B. -> NaCl
Answer: (b).NaCl
Question 13. The production of algae comprises about 30% of the operating costs in the bivalve hatchery.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 14. Which of the following Sea water intrusions consists of a lot of Geo-chemical process and doesn’t include microalgae?
  1.    Inter-aquifer mixing
  2.    Anthropogenic contamination
  3.    Increasing dissolved oxygen
  4.    Mobilization of brines
 Discuss Question
Answer: Option C. -> Increasing dissolved oxygen
Answer: (c).Increasing dissolved oxygen
Question 15. Which of the following process would increase the salt content in the soil?
  1.    Engineered biopiling
  2.    Soil salinization
  3.    Land farming
  4.    Bio-sparging
 Discuss Question
Answer: Option B. -> Soil salinization
Answer: (b).Soil salinization
Question 16. Which of the following factors of cells doesn’t influence their Eco toxicological evaluations?
  1.    Stability
  2.    Size
  3.    Color
  4.    Texture
 Discuss Question
Answer: Option C. -> Color
Answer: (c).Color
Question 17. Which of the following is not a portion of degradability of immobilized cells?
  1.    Very easily degradable
  2.    Easily degradable
  3.    Potentially degradable
  4.    Very fast degradable
 Discuss Question
Answer: Option D. -> Very fast degradable
Answer: (d).Very fast degradable
Question 18. Which of the following factors can determine the rate of degradability of cells?
  1.    Residence time
  2.    Fermentation time
  3.    Instability
  4.    Growth
 Discuss Question
Answer: Option A. -> Residence time
Answer: (a).Residence time
Question 19. Which of the following factors is not used to determine the response of aquatic environment water and sediment biota to the immobilized cells?
  1.    Altered growth rate
  2.    Physiological activity at organism level
  3.    Fermentation
  4.    Physiological activity at cellular level
 Discuss Question
Answer: Option C. -> Fermentation
Answer: (c).Fermentation
Question 20. Which the following doesn’t come under the category of very easily degradable polymer compounds used in immobilization?
  1.    Sugar
  2.    Amino acids
  3.    Organic acids
  4.    PCB
 Discuss Question
Answer: Option D. -> PCB
Answer: (d).PCB

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