Which One of the Following Processes in Sewage Treatment Requires

question 47

Multiple Choice

Which one of the following processes in sewage treatment requires bacterial metabolism?

• A) sedimentation
• B) primary treatment
• C) removal of BOD
• D) chlorination
• E) None of the answers is correct.

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Definitions:

Average Total Cost

The total cost of production (fixed and variable costs combined) divided by the quantity of output produced.

Minimum

The lowest permissible limit or the least possible amount or degree of something.

Marginal Cost

The funds required to produce an extra item of a product or service.

Average Fixed Cost

Fixed production charges (remaining constant irrespective of output size) partitioned by the amount of production.