Explore topic-wise MCQs in Environmental Biotechnology.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Biotechnology knowledge and support exam preparation. Choose a topic below to get started.

1.

The major disadvantage of heterotrophic nitrification is ____________ for final disposal.

A. excess sludge generation
B. less sludge generation
C. presence of oxygen
D. presence of carbon source
Answer» B. less sludge generation
Discussion
2.

Expand OLNAD.

A. Oxygen limited nitrification and denitrification
B. Oxygen reduced nitrification and denitrification
C. Oxygen limited ammonification and denitrification
D. Oxygen reduced nitrification and ammonification
Answer» B. Oxygen reduced nitrification and denitrification
Discussion
3.

Which of the following genera the nitrifying bacteria doesn t belong to?

A. <i>Nitrosomonas</i>
B. <i>Nitrosococcus</i>
C. <i>Nitrosospira</i>
D. <i>Pseudomonas</i>
Answer» E.
Discussion
4.

Which of the following is not an after effect of accumulation of nitrogen and phosphorus in aquatic ecosystem?

A. Adverse health conditions
B. Algal blooms
C. Increase in water quality
D. Reduction in marine life
Answer» D. Reduction in marine life
Discussion
5.

Autotrophic nitrification leads to formation of nitrate by conversion of ammonia.

A. True
B. False
Answer» B. False
Discussion
6.

Which of the following process is not involved in the removal of nitrogen?

A. Nitrification
B. Ammonification
C. Denitrification
D. Desalination
Answer» E.
Discussion
7.

Amino nitrogen and heterocyclic nitrogen can be degraded by biological method by first converting it into ______________

A. Ammonia
B. Nitrate
C. Sulphate
D. Carbon dioxide
Answer» B. Nitrate
Discussion
8.

Which of the following is the main source for eutrophication of surface water?

A. Nitrogen
B. Calcium
C. Magnesium
D. Potassium
Answer» B. Calcium
Discussion