This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The preferred method for raising the pressure of a low-pressure chiller in order to test for leaks ... (Read 122 times)

silviawilliams41

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
The preferred method for raising the pressure of a low-pressure chiller in order to test for leaks is:
 
  A) Charging the chiller with R-410A. B) Adding nitrogen to the evaporator.
  C) Circulating warm water through the chiller. D) Adding more refrigerant.

Question 2

Why is evacuating a refrigeration system important?
 
  A) Evacuation is the only procedure to ensure that noncondensable gases and moisture are removed from HFC systems with a POE lubricant.
  B) Increases in the system high-side pressure and temperature can only be accomplished by proper evacuation.
  C) Evacuation increases the system head pressure and compression ratio.
  D) Noncondensable gases and moisture, the two most common system contaminants, can be removed through evacuation.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pocatato

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

D


silviawilliams41

  • Member
  • Posts: 560
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Straight Leg Raising Test Straight Leg Raising Test
Blood Pressure Classifications Blood Pressure Classifications
If necessary, connect a battery charger to the battery before starting the compression test. It is ... If necessary, connect a battery charger to the battery before starting the compression test. It is ...
Apply direct pressure to points along the shoulders. Stand to one side and use your forearm to apply ... Apply direct pressure to points along the shoulders. Stand to one side and use your forearm to apply ...
Phalen’s test Phalen’s test
Mutagenicity of aflatoxin B1 determined by the Ames test Mutagenicity of aflatoxin B1 determined by the Ames test
Video: Frequency of stimulation and force (Recruitment of motor units and force)

For a complete list of videos, visit our video library