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Author Question: When free cooling operation is not practical but the system is operating in an occupied mode, an ... (Read 42 times)

moongchi

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on: Jul 24, 2018
When free cooling operation is not practical but the system is operating in an occupied mode, an economizer
  damper will be in its _____.
 
  a. fully open position
  b. fully closed position
  c. half open position
  d. minimum position

Question 2

Poor ventilation may exist in a building when the concentration of carbon dioxide in the building exceeds
  _____.
 
  a. 100 ppm
  b. 500 ppm
  c. 1,000 ppm
  d. 1,300 ppm


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mcabuhat

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

d

Answer to Question 2

c


moongchi

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Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

upturnedfurball

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Reply 3 on: Yesterday
Excellent

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