Author Question: Refrigeration oils must be miscible with the system refrigerant because: A) The system depends on ... (Read 142 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
Refrigeration oils must be miscible with the system refrigerant because:
 
  A) The system depends on the refrigerant to carry the oil throughout the system to lubricate all the refrigeration components.
  B) The compressor cannot operate properly without liquid refrigerant in the crankcase.
  C) The system depends on the refrigerant to return the oil to the compressor.
  D) The system depends on the oil to return the refrigerant to the compressor.

Question 2

Automatic expansion valves are similar in operating concept to:
 
  A) Manual valves. B) Electronic expansion valves.
  C) Fixed restrictions. D) Pressure regulators.



Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

For a complete list of videos, visit our video library