Practice Quiz

Green Plumbing - Question List

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236. For which of the following purposes is untreated reused water generally not suitable?
  1. Spray irrigation
  2. Decorative water features
  3. Street washing
  4. All of the above
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237. Which describes the distinction between graywater and blackwater?
  1. Reusing untreated graywater creates no risks; reusing untreated blackwater is potentially dangerous
  2. Graywater comes from the after-effects of storms; blackwater comes from irrigated compost filtering
  3. Graywater comes from bathing, laundry, dishes; blackwater comes from toilet waste
  4. A and C above
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238. HVAC condensate is a viable alternative source of water for reuse, with which caution:
  1. May contain high levels of bacteria
  2. Can be very acidic
  3. May have high particulate levels
  4. All of the above
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239. All of the following are potential health-related exposure issues from reusing untreated stormwater, except:
  1. Pathogenic bacteria
  2. Sediment
  3. Excess trace chemicals
  4. Radionuclides
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240. Each of the following is a potential source of cross connection and/or backflow between the public water supply and potentially contaminated/polluted water, except:
  1. Plumbing reroutes
  2. Toilet tanks
  3. Hose bibs
  4. Extended faucets
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