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

Author Question: How does air from air-conditioning vents affect open display cases? A) Open display cases are not ... (Read 162 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 24, 2018
How does air from air-conditioning vents affect open display cases?
 
  A) Open display cases are not affected by external air sources because of their powerful built-in air curtains.
  B) Open display cases are not affected by external air sources because of their engineered air baffles.
  C) It improves their performance by lowering the temperature of the air surrounding the display case.
  D) It disrupts the case's air curtain, causing them to rise in temperature.

Question 2

Why are draft inducer fans necessary in today's furnaces?
 
  A) To separate the flue gas from the heat through centrifugal force
  B) To move the flue gases through the ductwork
  C) The flue gases cannot make their way through the new heat exchangers on their own.
  D) To move gas into the burner assembly


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

FergA

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

C


rmenurse

  • Member
  • Posts: 513
Reply 2 on: Jul 24, 2018
Gracias!

amynguyen1221

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

A Simple Neural Model of Instrumental Conditioning A Simple Neural Model of Instrumental Conditioning
Classical Conditioning in Advertisements Classical Conditioning in Advertisements
CS-US Relationships Predict Conditioning CS-US Relationships Predict Conditioning
The driver information display on a Chevrolet Impala with a 5.3 liter V-8 equipped with active fuel ... The driver information display on a Chevrolet Impala with a 5.3 liter V-8 equipped with active fuel ...
Relaxed Posture and a Friendly Smile Communicate an Open and Welcoming Attitude Toward Clients. Relaxed Posture and a Friendly Smile Communicate an Open and Welcoming Attitude Toward Clients.
Display of Canapés Display of Canapés
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library