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Author Question: Which of the following accurately describes the danger of air in the refrigeration system? A) The ... (Read 18 times)

jayhills49

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on: Jul 24, 2018
Which of the following accurately describes the danger of air in the refrigeration system?
 
  A) The presence of air makes it impossible to connect a vacuum pump, which is necessary to perform the evacuation procedure.
  B) Too much air makes it impossible to properly calibrate an analog vacuum gauge within the refrigeration system.
  C) Oxygen may violently react with hydrogen and potentially cause a fire within the refrigeration system.
  D) Oxygen will chemically react with the refrigeration oil and deposits buildup in the discharge valve area, causing compressor motor burnouts.

Question 2

The total resistance of a series circuit with resistances of 18 and 9 is:
 
  A) 18  9 = 162 B) 18  9 = 9
  C) (18  9 )/(18 + 9 ) = 6 D) 18 + 9 = 27


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triiciiaa

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

D

Answer to Question 2

D


jayhills49

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Reply 2 on: Jul 24, 2018
Excellent

softEldritch

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Reply 3 on: Yesterday
Gracias!

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