Practice Quiz

Green Plumbing - Question List

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206. In terms of ideal placement for solar water heater collectors, which of the following is not one of the methods for finding true south?
  1. Sundial extrapolation method
  2. Compass
  3. “Solar noon” method
  4. GPS device
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207. For solar installations in which the collectors will be mounted flat on the roof, what is the approximate number of degrees increase in slope for each inch of increase in roof incline (e.g., 1/12 to 2/12)?
  1. 2 degrees
  2. 4 degrees
  3. 7 degrees
  4. 10 degrees
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208. Which of the following time ranges is considered most crucial to address in orienting solar collectors?
  1. 12 noon and 6pm
  2. 8am and 12 noon
  3. 8am and 6pm
  4. 9am and 3pm
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209. What is a significant advantage of using a GPSR over other tools to find true north and true south?
  1. Can be used any time of day or night
  2. Fast and convenient
  3. Both A and B
  4. None of the above
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210. What is the impact of magnetic declination on determination of true north and true south?
  1. Great impact
  2. Some impact
  3. Little impact
  4. Varied impact
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