Exercise: Microbiology Of Waste Water

Questions for: Microbiology Of Waste Water

The death of a river by environmental pollutants ultimately results from
A:
the overpopulation of algae
B:
the overabundance of toxic proteins
C:
the depletion of oxygen
D:
the buildup of sediment on the river bottom
Answer: C
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Water testing relies on the detection of certain indicator organisms known as
A:
acid-fast bacteria
B:
bacteroids
C:
coliforms
D:
dinoflagellates
Answer: C
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Which of the following is responsible for the corrosion problem?
A:
Iron bacteria
B:
Sulfur bacteria
C:
Slime forming bacteria
D:
All of these
Answer: B
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The acetate-utilizing methanogens are responsible for
A:
20% of methane produced in a biogas reactor
B:
50% of methane produced in a biogas reactor
C:
70% of methane produced in a biogas reactor
D:
85% of methane produced in a biogas reactor
Answer: C
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Biogas production is
A:
a temperature-dependent process
B:
a temperature independent process
C:
an oxygen dependent process
D:
none of the above
Answer: A
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