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Biochemical Oxygen Demand (BOD5) test is standardly measured after incubation at:

A10 degrees Celsius for 5 days
B37 degrees Celsius for 3 days
C25 degrees Celsius for 7 days
D20 degrees Celsius for 5 days

Explanation

Standard Biochemical Oxygen Demand (BOD5) test measures dissolved oxygen consumed by microorganisms to decompose organic matter in wastewater incubated at 20°C for 5 days.

Submitted by: mcqstutor Team More Civil Engineering MCQs →

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