Class 7 Science Online Tests
Sewage System MCQ (Multiple Choice Questions) PDF Download
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The Sewage system Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sewage System MCQ PDF e-Book) download to practice Grade 7 Science Tests. Study Importance of Water Multiple Choice Questions and Answers (MCQs), Sewage System quiz answers PDF for homeschool certificate courses. The Sewage System MCQ App Download: Free learning app for safe and drinking water, fresh water, water treatment test prep for taking online classes.
The MCQ: Untreated sewage should not be pumped into; "Sewage System" App Download (Free) with answers: Water tanks; Water reservoirs; Rivers and streams; Oceans; for homeschool certificate courses. Solve Importance of Water Quiz Questions, download Apple eBook (Free Sample) for free online courses.
Sewage System MCQ (PDF) Questions Answers Download
The soil and sand is settled at the bottom in
- metal screen
- grit tank
- sludge tank
- filter bed
Untreated sewage should not be pumped into
- water tanks
- water reservoirs
- rivers and streams
- oceans
In country area, untreated sewage is pumped into tanks known as
- septic tanks
- sewage tanks
- grit tanks
- sludge tanks
The remaining sewage after it has passed through the sludge tank is known as
- treated sewage
- effluent
- clinker
- distillate
Which gas is often used as a energy source at the city's wastewater treatment plants?
- ethane
- carbon
- methane
- nitrogen
Class 7 Science Practice Tests
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Grade 6 Science MCQ Questions
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