Author Question: Refrigeration oils must be miscible with the system refrigerant because: A) The system depends on ... (Read 133 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?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

For a complete list of videos, visit our video library