Practice Quiz

Green Plumbing - Question List

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186. The type of reaction that creates solar energy is called what?
  1. Combustion
  2. Diffusion
  3. Fission
  4. Fusion
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187. Which of the following are common passive designs for solar heated water systems with the advantage of having no pump?
  1. Vertical grid system
  2. Batch (breadbox) system
  3. Thermo-siphon system
  4. B and C above
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188. Which of the following is a key advantage of an evacuated tube array collector design?
  1. Keeps operating if tube is damaged; replace only glass portion of tube
  2. Ensures that no snow can accumulate on the collector installation
  3. A and B above
  4. None of the above
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189. Which pair of terms related to solar thermal system design has recently been redefined as “direct and indirect”?
  1. Active and passive
  2. Open and closed
  3. Uninterrupted and interrupted
  4. Dynamic and inert
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190. Which of the following can increase the efficiency of a heat exchanger in closed loop systems?
  1. E. Pipe-within-a-pipe design: hot water in inner pipe and glycol in outer pipe
  2. F. Counter-flow path
  3. G. Both A and B
  4. H. Neither A nor B
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