Practice Quiz

Green Plumbing - Question List

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191. What is a significant drawback of using a closed solar heated water system?
  1. Overheating leading to a breakdown of the circulating liquid
  2. Lower efficiency than open loop systems
  3. Regular failure of collector tubes
  4. Both A and B
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192. In an open-loop active system, which area of the tank has the highest Delta T?
  1. Top of tank
  2. Bottom of tank
  3. Middle of tank
  4. Nearest the water inlet
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193. Each of the following is a component of a traditional boxed and glazed collector, except:
  1. Absorber plate
  2. Check valve
  3. Manifold inlet
  4. Riser tubes
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194. Each of the following is a simple, strong argument for rebutting perceptions that solar thermal systems will not produce adequate heat, except:
  1. Impact of global warming
  2. Scalding residual water in a garden hose left in the sun
  3. Successful performance of portable solar showers
  4. Sunburn on a cloudy day
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195. In a retrofit two-tank installation of a solar heated water system, what is the recommended age above which the existing tank should be replaced?
  1. Three years
  2. Five years
  3. Eight years
  4. Eleven years
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