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 43 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
Gracias!

Bigfoot1984

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Major features of the Solar System (not to scale) Major features of the Solar System (not to scale)
Example of a Regulatory System Example of a Regulatory System
Procedures and Diagnostic Tests Related to the Female Reproductive System Procedures and Diagnostic Tests Related to the Female Reproductive System
The pressure valve maintains the system pressure and allows excess pressure to vent. The vacuum ... The pressure valve maintains the system pressure and allows excess pressure to vent. The vacuum ...
The fuel system should hold pressure if the system is leak free. The fuel system should hold pressure if the system is leak free.
Integumentary system & Skeletal system Integumentary system & Skeletal system
Video: Elementary kinetics

For a complete list of videos, visit our video library