How to build a rainwater collection system
  • 1. What is the primary purpose of a rainwater harvesting system?
A) To pollute rainwater sources
B) To divert rainwater into sewers
C) To create artificial lakes
D) To collect and store rainwater for later use
  • 2. What is the first component rainwater touches in a typical system?
A) Filtration system
B) First flush diverter
C) Storage tank
D) Catchment surface
  • 3. Which material is commonly used for catchment surfaces?
A) Metal roofing
B) Asbestos roofing
C) Gravel
D) Soil
  • 4. What is the function of a first flush diverter?
A) To increase water pressure
B) To heat the water
C) To remove initial dirty water from the roof
D) To add chemicals to the water
  • 5. Which type of tank is best for above-ground storage in warm climates?
A) Clear glass
B) Concrete
C) Opaque polyethylene
D) Transparent metal
  • 6. What type of filter is commonly used to remove large debris?
A) Reverse osmosis filter
B) Leaf screen
C) UV filter
D) Carbon filter
  • 7. Why is it important to have a properly sized gutter system?
A) To add aesthetic value to the house
B) To efficiently channel rainwater to the downspout
C) To increase wind resistance
D) To prevent sunlight from reaching the roof
  • 8. What is the purpose of an overflow pipe in a rainwater tank?
A) To add water from another source
B) To empty the tank completely
C) To prevent tank rupture due to overfilling
D) To filter excess water
  • 9. What is a common disinfectant used in rainwater harvesting systems?
A) Sugar
B) Fertilizer
C) Motor oil
D) Chlorine
  • 10. For what purpose is rainwater collected MOST commonly used?
A) Nuclear power
B) Industrial processes
C) Irrigation
D) Drinking
  • 11. What is a backflow preventer used for?
A) Filtering rainwater
B) Increasing water pressure
C) Preventing contamination of the potable water supply
D) Heating the water
  • 12. What is the recommended slope for gutters?
A) Steep downward slope
B) Slight upward slope away from the downspout
C) Perfectly level
D) Slight downward slope towards the downspout
  • 13. Which of these is NOT a benefit of rainwater harvesting?
A) Decreases erosion
B) Reduces stormwater runoff
C) Conserves potable water
D) Increases reliance on municipal water supplies
  • 14. What type of pump is often used to deliver rainwater for irrigation?
A) Air pump
B) Hand pump
C) Bicycle pump
D) Submersible pump
  • 15. What is the ideal pH for rainwater?
A) Slightly acidic
B) Highly alkaline
C) Neutral
D) Highly acidic
  • 16. What agency typically regulates rainwater harvesting systems?
A) International Space Station
B) Local or state government
C) National Football League
D) Federal Aviation Administration
  • 17. What type of material is unsuitable for a catchment surface?
A) Lead
B) Clay tiles
C) Aluminum
D) Stainless Steel
  • 18. Which of these is NOT a common storage tank shape?
A) Spherical
B) Pyramid
C) Rectangular
D) Cylindrical
  • 19. What maintenance task is most important for a rainwater harvesting system?
A) Adding fertilizer to the water
B) Regularly cleaning gutters and filters
C) Painting the storage tank annually
D) Ignoring the system entirely
  • 20. What is the purpose of a sediment filter?
A) To remove particulate matter
B) To add minerals
C) To remove bacteria
D) To remove chemicals
  • 21. What type of pipe is commonly used for rainwater harvesting systems?
A) PVC
B) Cardboard
C) Aluminum foil
D) Glass
  • 22. What is the role of a rainwater harvesting consultant?
A) To design and install systems.
B) To pilot airplanes.
C) To mine for precious metals
D) To sell insurance.
  • 23. What is a rain chain?
A) A type of metal used to build roofs.
B) An alternative to a downspout.
C) A device for measuring rainfall acidity.
D) A type of plant that grows in rainy areas.
  • 24. Why is it important to label pipes carrying non-potable water?
A) To prevent accidental consumption.
B) To make the system look more professional.
C) To increase water pressure.
D) To make them easier to find.
  • 25. Which of these is a water quality concern for rainwater?
A) Bird droppings
B) Excessive hardness
C) High mineral content
D) Too much oxygen
  • 26. What is the name of the process of filtering water using a series of increasingly fine sieves?
A) Multi-stage filtration
B) Electrolysis
C) Reverse Osmosis
D) Photosynthesis
  • 27. Why should a rainwater harvesting system be inspected regularly?
A) To add chemicals.
B) To make sure it's attracting animals.
C) To collect rainwater data.
D) To identify and fix any potential problems.
  • 28. In a dry climate, what design consideration becomes MOST critical?
A) Minimizing filtration
B) Ignoring first flush diversion
C) Using dark-colored tanks
D) Maximizing storage capacity
  • 29. What is the impact on your water bill after using a rainwater harvesting system?
A) It doubles.
B) It typically decreases.
C) It typically increases.
D) It is not effected.
  • 30. What is the best type of paint for a rainwater harvesting tank?
A) Oil-based
B) Highly toxic
C) Non-toxic
D) Lead-based
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