Practice Quiz

Green Plumbing - Question List

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246. All of the following are enhancements to gutters in rainwater harvesting systems that maximize the amount and cleanliness of rainwater to the storage tank, except:
  1. Guards/screens
  2. Ice/snow melters
  3. Rain chains
  4. Sludge traps/outlets
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247. Which shows the correct order of rainwater’s movement through the harvesting system components, starting with rain and assuming it is destined for potable water use?
  1. Gutter - storage tank - purification system - pressure pump
  2. Catchment surface - gutter - storage tank - filters
  3. Catchment surface - filters - first flush device - purification system
  4. Gutter - check valve - first flush device - filters
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248. What is the equation to determine the amount of harvested rainwater (in gallons)?
  1. Catchment area (ft2) x rainfall depth (in.) x 0.62 conversion factor
  2. Catchment area (ft2) x rainfall depth (in.)
  3. Roof area (ft2) x roof slope (degrees) x rainfall depth (in.)
  4. Roof area (ft2) x roof slope (degrees) x rainfall depth (in.) x 0.62 conversion factor
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249. Which describes the conversion factor for calculating rainwater harvesting quantities?
  1. Product of humidity level multiplied by barometric pressure in kilopascals
  2. Proportion of rainwater generated per degree Fahrenheit above freezing over catchment area
  3. Proportion of rainwater generated per rainwater inch over 1,000 ft2 of catchment area
  4. Quotient of rainwater evaporation rate divided by rainwater fall
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250. All of the following are best practices for choosing rainwater tanks except:
  1. Accessible port for cleaning
  2. Opaque/dark color to inhibit algae growth
  3. Screened vents and ports to impede infiltration of debris and mosquitoes
  4. Choose only polyethylene tanks
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