Practice Quiz

Green Plumbing - Question List

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221. Each of the following subjects related to solar water heating systems is covered by the Uniform Solar Energy Code, except:
  1. Backflow protection
  2. Storage tank safety
  3. Relief valves
  4. None of the above - all are covered
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222. Each of the following subjects related to solar water heating systems is covered by the Uniform Mechanical Code, except:
  1. Boilers
  2. Refrigeration systems
  3. General appliance requirements
  4. Hydronic systems
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223. In order to ensure that the solar thermal pump runs only when it should, to minimize heat loss, what is the name of the device that can identify the Delta T levels for turning the pump on and off appropriately?
  1. Temperature gauge
  2. Differential thermostat
  3. Heat change detector
  4. None of the above
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224. What is the name for the temperature-sensitive resistors attached to the device that identifies the Delta T levels for turning the pump on and off?
  1. Galvanometer
  2. Transducer
  3. Variometer
  4. Thermistor
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225. Which of the following is not a potential hazard of using certain types of solar thermal systems?
  1. Freezing temperatures compromising system
  2. Scaling problem in small-diameter pipes with hard water
  3. Melting tubes
  4. Extremely high temperatures
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