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- 1. Multiple Choice
We should not throw cooking oil and paint down the drain because
they break the pipe
they harden and clog the pipe
they flow through the drain freely
None of these
- 2. Multiple Choice
Septic tanks are mostly used in
Urban cities
Rural villages
Isolated areas
Semi-urban areas
- 3. Multiple Choice
Sewage in large cities is known as
Corporation wastewater
Municipal wastewater
Rural wastewater
Urban wastewater
- 4. Multiple Choice
This is the part where solid wastes are allowed to settle down and light floatable wastes rise
Grit Chamber
Sedimentation Tank
Aeration Tank
None of These
- 5. Multiple Choice
Dried _____ is used as manure
Slurry
Sewage
Sand
Sludge
- 6. Multiple Choice
Which of these is not a source of wastewater?
Houses
Sewage
Industries
Hospitals
- 7. Multiple Choice
Why shouldn't we pour pesticides & fertilizers down the drain?
It clogs the drain
It kills the sludge digestin' bacteria
Cracks are formed in the pipelines as these things harden
Pollutes the water bodies
- 8. Multiple Choice
A chemical to disinfect water
Copper Sulphate
Distilled Water
Iron Sulphate
Chlorine
- 9. Multiple ChoiceHazardous waste is:corrosiveignitabletoxicall of these
- 10. Multiple ChoiceThe three main categories of waste include municipal solid waste, hazardous waste, and:industrial wasteradioactive wastewastewatergreen waste
- 11. Multiple ChoiceWhy are non-biodegradable plastics a problem in the environment?They do not decompose or break down naturallyThey leak toxic chemicalsThey are filling up lakes and pondsThey contain poisons for wildlife
- 12. Multiple ChoiceWhat is the collection of materials that can be broken down and reprocessed to make new items?compostingincinerationleachaterecycling
- 13. Multiple ChoiceE-waste is generated from...electronicselevated nuclear plantselephants at the zooEPA regulated facilities
- 14. Multiple ChoiceIn what category of waste do paint, household cleaners, medical waste, and solvents belong?hazardouscompostmunicipal solidindustrial
- 15. Multiple Choice
What is the first step of sewage treatment?
Clarification
Sieving
Settling
Aeration
- 16. Multiple Choice
____ is a water-borne disease.
Cholera
Cancer
Flu
Chicken pox
- 17. Multiple Choice
Which of the following statement is correct?
Chemicals like medicines, paints, insecticides should be disposed in sinks.
Dispose tea leaves and food items in the kitchen sink.
Wastewater from basins, sinks, and washing machines can be reused for watering plants or wiping floor.
Leakage in sewer lines should not be checked regularly.
- 18. Multiple Choice
This is the part where solid wastes are allowed to settle down and light floatable wastes rise
Grit Chamber
Sedimentation Tank
Aeration Tank
None of These
- 19. Multiple Choice
What gases are produced by anaerobic bacteria?
Hydrogen H2
Carbon Dioxide CO2
Carbon monoxide CO
Methane CH4
- 20. Multiple Choice
Sewage is mainly
Liquid Waste
Solid Waste
Gaseous waste
Mixture of solid and gaseous waste
- Answer choicesTagsAnswer choicesTags