The 2.4 ml of raw sewage is diluted to 240 ml. The Dissolved Oxygen (DO) of the diluted sample at the beginning of Biochemical Oxygen Demand (BOD) test was 8 mg/l and it was 6 mg/l after 5-day incubation at 20 ° C. The BOD₅ (in mg/l) of the raw sewage is

GATE 2026 Civil Engineering Q42 — Civil Engineering

GATE 2026Shift 2Q42MCQanswer keyexplanation soonmedium

Civil Engineering · Environmental Engineering - Water and Wastewater Treatment

Concept intelligence

Jump into a concept drill from this question.

Studying seriously for GATE CSE?

Keep browsing free. Pro unlocks the paid study loop: explanations, topic mastery, mistake notebook, and custom PYQ drills.

Recurring concept

Environmental Engineering - Water and Wastewater Treatment has appeared in GATE Civil Engineering 3 times across 2 years (2023, 2026).

More questions on Environmental Engineering - Water and Wastewater Treatment

∑ has math

BODSewageDilutionEnvironmental Engineering