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

Author Question: Which of the following accurately describes the danger of air in the refrigeration system? A) The ... (Read 31 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

D


jayhills49

  • Member
  • Posts: 559
Reply 2 on: Jul 24, 2018
Wow, this really help

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Divisions of the nervous system. Divisions of the nervous system.
The Hepatic Portal Blood Supply The liver receives water, minerals, and nutrients from the digestive The Hepatic Portal Blood Supply The liver receives water, minerals, and nutrients from the digestive
Modification of neural transmission in the central nervous system: (a) normal transmission; (b) ... Modification of neural transmission in the central nervous system: (a) normal transmission; (b) ...
A demand delivery system uses a fuel-pressure regulator attached to the fuel pump assembly inside ... A demand delivery system uses a fuel-pressure regulator attached to the fuel pump assembly inside ...
The urinary system: Anterior view of the urinary organs of a female The urinary system: Anterior view of the urinary organs of a female
Sensory systems and Endocrine system Sensory systems and Endocrine system
Video: Carbohydrate digestion - mouth and stomach & pancreas and small intestine

For a complete list of videos, visit our video library