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

Author Question: How is a U factor calculated for a building panel built of several different materials? A) Add ... (Read 48 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Jul 24, 2018
How is a U factor calculated for a building panel built of several different materials?
 
  A) Add the R values of the different materials and then find the reciprocal.
  B) Take the reciprocal of the lowest R value.
  C) Take the reciprocal of the highest R value.
  D) Average the R values of the different materials and then find the reciprocal.

Question 2

Which of the following statements is TRUE about the economizer?
 
  A) The economizer cools the liquid refrigerant but does not affect the volume of available liquid refrigerant.
  B) The economizer acts as a control valve and separates the liquid cooled and warmed refrigerant.
  C) The economizer provides more cooled liquid refrigerant to the cooler than do systems without an economizer.
  D) The economizer is directly connected to the compressor, so liquid refrigerant that flashes is returned directly to the compressor.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

britb2u

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

C


xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Rocks are the most common geosphere materials, and can be fun, dangerous, beauti Rocks are the most common geosphere materials, and can be fun, dangerous, beauti
Many former slaves understood that illiteracy was an implement of bondage. The Freedmen’s Bureau bui Many former slaves understood that illiteracy was an implement of bondage. The Freedmen’s Bureau bui
(Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ... (Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ...
Rhinestones, acrylic, and enamel on wood panel Rhinestones, acrylic, and enamel on wood panel
The graph of y = sqrt(x) is vertically stretched by a factor The graph of y = sqrt(x) is vertically stretched by a factor
A company that makes environmental measuring devices has calculated their revenue and costs as ... A company that makes environmental measuring devices has calculated their revenue and costs as ...
Video: Genetic terms Animation

For a complete list of videos, visit our video library