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 57 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
:D TYSM

chereeb

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

The digestive system: functions of the small intestine and large intestine (colon) The digestive system: functions of the small intestine and large intestine (colon)
Gene editing using the CRISPR-Cas9 system. Gene editing using the CRISPR-Cas9 system.
Landsteiner's experiment demonstrating the exquisite specificity of the immune system. Landsteiner's experiment demonstrating the exquisite specificity of the immune system.
Lymphatic system vessels and the flow of lymph. Lymphatic system vessels and the flow of lymph.
Autonomic innervation of the male reproductive system Autonomic innervation of the male reproductive system
The Muscular System (Posterior View) The Muscular System (Posterior View)
Video: Blood Test Basics

For a complete list of videos, visit our video library