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

Author Question: A Category IV furnace operates with a: A) High-temperature, positive-pressure vent. B) ... (Read 79 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 24, 2018
A Category IV furnace operates with a:
 
  A) High-temperature, positive-pressure vent. B) Low-temperature, positive-pressure vent.
  C) High-temperature, negative-pressure vent. D) Low-temperature, negative-pressure vent.

Question 2

What components are added to make a two-stage furnace?
 
  A) An extra set of burners and an extra gas valve
  B) Electric heat strips and a second stage sequence
  C) A two-stage gas valve, two draft proving switches, and a two-speed induced draft fan
  D) A second heat exchanger and an electric vent gas damper


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rekilledagain

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

C


neverstopbelieb

  • Member
  • Posts: 534
Reply 2 on: Jul 24, 2018
Wow, this really help

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Aquatic microclimates: aquatic environments generally show less temperature variation compared to te Aquatic microclimates: aquatic environments generally show less temperature variation compared to te
Positive Babinski’s sign. Positive Babinski’s sign.
Current FDA Pregnancy Category Ratings with Examples Current FDA Pregnancy Category Ratings with Examples
Selected High-Risk Drugs for Older Adults Selected High-Risk Drugs for Older Adults
Compression using reinforced palm. The heel of the top hand is placed to avoid putting pressure on ... Compression using reinforced palm. The heel of the top hand is placed to avoid putting pressure on ...
Apply direct pressure under the zygomatic arch. Moving laterally, gently press up and under the ... Apply direct pressure under the zygomatic arch. Moving laterally, gently press up and under the ...
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library