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mireiajordan mireiajordan
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Posts: 543
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6 years ago
Which of the following refrigerant oils is glycol-based?
 
  A) Alkylbenzene
  B) POE
  C) PAG
  D) PVE


[Ques. 2] Moisture in a system reacts with refrigerant to form _____.
 
  A) an azeotrope
  B) hydrochloric and hydrofluoric acids
  C) a non-condensable contaminant
  D) nitrogen


[Ques. 3] At sea level, the air pressure applied to every square inch of Earths surface is _____.
 
  A) 0 psia
  B) 14.7 psia
  C) 27.68 psia
  D) 14.7 psig


[Ques. 4] Most electronic thermostats maintain their programming when the batteries are removed using a built-in
  _____.
 
  A) diode
  B) resistor
  C) light cell
  D) capacitor


[Ques. 5] The most common heating fuel in the United States is _____.
 
  A) gas
  B) fuel oil
  C) electricity
  D) coal
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apyattapyatt
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Posts: 306
Rep: 4 0
6 years ago
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mireiajordan Author
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#2
6 years ago
I appreciate what you did here
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