Explore topic-wise MCQs in Environmental Biotechnology.

This section includes 9 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.

Which of the following has a vertical flow of waste in a reactor system?

A. Vertical reactor
B. Rotating drum
C. Horizontal reactor
D. Windrow composting
Answer» B. Rotating drum
Discussion
2.

Which of the following has a helical ridge?

A. Vertical reactor
B. Rotating drum
C. Horizontal reactor
D. Recycling
Answer» C. Horizontal reactor
Discussion
3.

Reactor composting leads to forced exchange of gases.

A. True
B. False
Answer» B. False
Discussion
4.

Which of the following methods are not the result of windrow composting when the wastes are distributed?

A. Homogenization
B. Landfill sealing
C. Reintroducing free air space
D. Increased evaporation
Answer» C. Reintroducing free air space
Discussion
5.

Which non-reactor system serves as a direct contact between the waste and the atmosphere?

A. Windrow composting
B. Vertical reactor
C. Rotating drum
D. Horizontal reactor
Answer» B. Vertical reactor
Discussion
6.

Which of the following methods doesn t use thermal disinfection method?

A. Field composting
B. Windrow composting
C. Vertical reactor
D. Horizontal reactor
Answer» B. Windrow composting
Discussion
7.

Which of the following methods is the simplest way of microbial composting?

A. Field composting
B. Vertical reactor
C. Horizontal reactor
D. Windrow composting
Answer» B. Vertical reactor
Discussion
8.

Which of the following is not a type of reactor system used for microbial composting?

A. Rotating drum
B. Horizontal reactor
C. Vertical reactor
D. Field composting
Answer» E.
Discussion
9.

Non-reactor system is a classification of the composting systems.

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