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

Author Question: List the agencies that promote duct standards and briefly describe what they cover. What will be ... (Read 20 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
on: Jul 26, 2018
List the agencies that promote duct standards and briefly describe what they cover.
 
  What will be an ideal response?

Question 2

Why are rounded tipped sheet metal screws used?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

debra928

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 26, 2018
Answer to Question 1

Underwriters Laboratories produces standards for manufactured duct and duct connections

National Fire Protection Association promotes standards for installation of heating and air conditioning systems. The NFPA is primarily interested in fire safety.

SMACNA publishes standards related to duct installation.

NAIMA publishes standards for the installation of fiber ductboard and fiberglass insulation.

Air Diffusion Council publishes standards for installing flexible duct.

ACCA publishes duct design manuals and a specification for quality installation.

Answer to Question 2

To protect against accidental stripping or shorting of wires within the electrical panel.


Ebrown

  • Member
  • Posts: 567
Reply 2 on: Jul 26, 2018
Excellent

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

The salivary glands, parotid, sublingual, and submandibular. This image shows the position of each g The salivary glands, parotid, sublingual, and submandibular. This image shows the position of each g
Biochemistry List of Usefullness Biochemistry List of Usefullness
Herbert Bayer, Cover for Bauhaus 1. Herbert Bayer, Cover for Bauhaus 1.
Assist recipient into side-lying position. Woman sits on edge of table holding drape to cover her ... Assist recipient into side-lying position. Woman sits on edge of table holding drape to cover her ...
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Major Vitamins List Major Vitamins List
Video: Introduction to Autism

For a complete list of videos, visit our video library