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Microbiology Practice Test: Microbiology of Domestic Water and Wastewater
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Avg score: 77% Most missed: “The coliform group of bacteria includes all the __________________ bacilli.”
Water microbiology is the study of microorganisms that live in water, such as bacteria, fungi, yeast, viruses, protozoa, and algae.  Here are some things to know about the microbiology of domestic water and wastewater: Domestic wastewater: This wastewater comes from residential places, including sinks, toilets, and laundry. It contains a range of chemicals, soaps, detergents, bacteria, and pathogenic microbes. Microorganisms in wastewater: Most bacteria in wastewater are saprophytic and harmless to humans. However, wastewater may also contain pathogenic bacteria that cause typhoid,... Show more
Microbiology Practice Test: Microbiology of Domestic Water and Wastewater
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21 Questions

1. Which of the following is a strict anaerobe?
2. The more oxidizable organic material, the lesser the BOD.
3. The potability of water can be checked by sanitary surveys.
4. The coliform group of bacteria includes all the __________________ bacilli.
5. Activated sludge usually employs an aeration period of ________________
6. In which of the following treatment involve oxidation of organic constituents of the wastewater?
7. The upper region of the trickling filter is favorable for the growth of _____________
8. Among the following which microorganism acts as a representative of fecal streptococci group?
9. Which of the following sewerage systems carry domestic and industrial wastewater?
10. Alum is used for which of the following purification process?
11. Trickling filter is used in which of the following wastewater treatment processes?
12. In which of the following organism does iron secreted to form stalks or ribbons attached to the cell?
13. Coliforms are natural inhabitants of the large intestine of human and animals.
14. Which of the following organism does not belong to coliform group of bacteria?
15. Thiobacillus can produce an acidity in the range of pH __________
16. Belt filter presses are used in which of the following process?
17. Oxidation ponds are very deep ponds.
18. Which of the following forms of water is the most contaminated?
19. What will be the plate count of good quality water?
20. Which of the following acts as a carbon source for Enterobacter aerogenes?
21. Which of the following gases are produced in large amounts during sludge digestion?