This topic contains a solution. Click here to go to the answer

Author Question: If the low side test pressure is not know, the maximum pressure that should be used for leak testing ... (Read 68 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
If the low side test pressure is not know, the maximum pressure that should be used for leak testing an R-22 refrigeration system with hermetic compressor is:
 
  A) 150 psig. B) 300 psig. C) 200 psig. D) 250 psig.

Question 2

When the contacts on a contactor or motor starter begin to stick:
 
  A) They should be replaced.
  B) They should be reconditioned using a file.
  C) They should be cleaned with contact cleaner.
  D) The voltage to the coil should be increased to strengthen the contactor.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CharlieArnold

  • Sr. Member
  • ****
  • Posts: 319
Answer to Question 1

A

Answer to Question 2

A





 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

The FDA recognizes 118 routes of administration.

For a complete list of videos, visit our video library