Sewage System MCQs Quiz Worksheet PDF Download
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MCQs on Sewage System Quiz PDF Download
MCQ: Soil and sand is settled at bottom in
- metal screen
- grit tank
- sludge tank
- filter bed
MCQ: Untreated sewage should not be pumped into
- water tanks
- water reservoirs
- rivers and streams
MCQ: In country area, untreated sewage is pumped into tanks known as
- septic tanks
- sewage tanks
- grit tanks
- sludge tanks
MCQ: Remaining sewage after it has passed through sludge tank is known as
- treated sewage
MCQ: Which gas is often used as a energy source at city's wastewater treatment plants?