Practice Quiz

Green Plumbing - Question List

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181. Which of the following components is designed to help ensure that collected rainwater is safe?
  1. Pump
  2. Overflow port
  3. Collection gutters
  4. First-flush diverter
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182. Which of the following is a drawback of having catchment system components to produce both potable and non-potable rainwater for in-house reuse?
  1. Greater flexibility in reuse
  2. Requires additional permitting and code compliance
  3. Requires two plumbing systems
  4. Cannot tell which is potable and which is non-potable
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183. Which of the following are fundamental safety measures in installing a rainwater catchment system?
  1. Use only fully-enclosed storage tanks
  2. Avoid asphalt shingles as a collection surface
  3. Secure the storage tank to a wall or other sturdy surface
  4. All of the above
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184. Each of the following is a common perception of those preferring solar photovoltaic compared to solar thermal installations, except:
  1. Solar thermal systems don’t work well
  2. Solar thermal is dangerous
  3. Solar photovoltaic allows users to “spin their meters backwards”
  4. Solar photovoltaic turns the tables so the electric utility pays for electricity from the user, rather than the other way around
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185. Which of the following are approximate efficiency percentages, respectively, for solar thermal and solar photovoltaic commercially-available cells? (As of ~2007)
  1. Up to 90%; 15% to 20%
  2. Up to 80%; 9% to 14%
  3. Up to 60%; 24% to 29%
  4. Up to 50%; 12% to 16%
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