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MCQs

Total Questions : 132 | Page 9 of 14 pages
Question 81. Which among the following is not suitable for treatment by bio-remediation?
  1.    Hdrocarbons
  2.    Fungicides
  3.    Surfactants
  4.    Multiple sclerosis
 Discuss Question
Answer: Option D. -> Multiple sclerosis
Answer: (d).Multiple sclerosis
Question 82. Which among the following is not considered as the principal environmental factor?
  1.    pH
  2.    Temperature
  3.    Soil type
  4.    Pressure
 Discuss Question
Answer: Option D. -> Pressure
Answer: (d).Pressure
Question 83. Some soil remediation processes enhance the presiding micro-bacteria and bio-augment the clean-up process by adding fungi to the respective soil.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 84. In-situ based bio remediation involves introducing __________________ to contaminated areas.
  1.    Oxygen and nutrients
  2.    Carbon dioxide and methane
  3.    Nitrogen and CO₂
  4.    CO and methane
 Discuss Question
Answer: Option D. -> CO and methane
Answer: (d).CO and methane
Question 85. Which of the following major technique is not employed during in-situ bioremediation?
  1.    Biosparging
  2.    Bioventing
  3.    Injection recovery
  4.    Bio-luminescence
 Discuss Question
Answer: Option D. -> Bio-luminescence
Answer: (d).Bio-luminescence
Question 86. If the majority of the mechanism of bio-remediation process is an anaerobic process, then oxygen presence becomes toxic.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 87. Which among the following is not a caused due to presence of heavy metals in the soil micro-biome during a remediation process?
  1.    Increased mobilization of heavy metals
  2.    Inhibition of biological processes
  3.    Iron precipitation
  4.    Increase in soil fertility
 Discuss Question
Answer: Option D. -> Increase in soil fertility
Answer: (d).Increase in soil fertility
Question 88. Which of the following is used to isolate the processes taking place in lined earthworks?
  1.    Low density lipoprotein
  2.    High density lipoprotein
  3.    Low density polyethylene liner
  4.    High density polyethylene (HDPE) liner
 Discuss Question
Answer: Option D. -> High density polyethylene (HDPE) liner
Answer: (d).High density polyethylene (HDPE) liner
Question 89. To increase the speed and efficiency of Soil banking method ___________ is used.
  1.    Engineered biopiling
  2.    Soil slurry bioreactors
  3.    Land farming
  4.    Bio-sparging
 Discuss Question
Answer: Option A. -> Engineered biopiling
Answer: (a).Engineered biopiling
Question 90. In Soil slurry reactor, the slurry is thickened and dewatered using __________
  1.    Clarifiers
  2.    Biosparging
  3.    Bio-accumulation
  4.    Bio-degradation
 Discuss Question
Answer: Option A. -> Clarifiers
Answer: (a).Clarifiers

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