The main disadvantage of oxidation pond is that
A. Large area is required for construction
B. Maintenance and operation cost are high
C. BOD removal is very low
D. None of the above
Answer: Option A
A. Large area is required for construction
B. Maintenance and operation cost are high
C. BOD removal is very low
D. None of the above
Answer: Option A
The distribution mains are designed for
A. Maximum daily demand
B. Maximum hourly demand
C. Average daily demand
D. Maximum hourly demand on maximum day
Sewage treatment units are designed for
A. Maximum flow only
B. Minimum flow only
C. Average flow only
D. Maximum and minimum flow
A. 4.5 to 6.0
B. 6.5 to 8.0
C. 8.5 to 10.0
D. 10.5 to 12.0
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