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Author Question: How can an air-source heat pump heat when the outdoor temperature is cold? A) All heating is ... (Read 79 times)

809779

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on: Jul 24, 2018
How can an air-source heat pump heat when the outdoor temperature is cold?
 
  A) All heating is accomplished with electrical resistance heaters, so the air temperature is irrelevant.
  B) Air-source heat pumps only use the outdoor air in the cooling season.
  C) The friction of the air passing over the outdoor coil raises the temperature.
  D) All molecules contain some heat until they reach absolute zero (-460F).

Question 2

________ are available for integration in communicating control systems.
 
  A) Air cleaners, dishwashers, and refrigerators
  B) Zoning boards, humidifiers, and air cleaners
  C) Blowers, kitchen appliances, and entertainment systems
  D) Humidifiers, video games, and audio systems


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Jsherida

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Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

B


809779

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Reply 2 on: Jul 24, 2018
Wow, this really help

mochi09

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Reply 3 on: Yesterday
Excellent

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