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

Author Question: A classification of assemblies (based on lab testing) in their ability to dampen sound in airborne ... (Read 237 times)

Collmarie

  • Hero Member
  • *****
  • Posts: 569
on: Aug 28, 2018
A classification of assemblies (based on lab testing) in their ability to dampen sound in airborne transmission is referred to as:
 
   NRC ratings
   STC ratings
   NC ratings
   All of above

Question 2

Uniform background sound can be achieved by:
 
   Installing a sound masking system (sometimes
  called white noise) into the plenum space of a
  building or room
   Allowing the HVAC system to continually blow air
   Manipulating the placement of materials that can redirect sound waves
   Using an audio system tuned into soft music


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Aug 28, 2018
Answer to Question 1

STC ratings

Answer to Question 2

Installing a sound masking system
(sometimes called white noise) into the plenum
space of a building or room


Collmarie

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Aug 28, 2018
Thanks


joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #3 on: Aug 28, 2018
Welcome :)


« previous next »
 

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Phylogeny based on the FIT2 gene Phylogeny based on the FIT2 gene
Testing Visual Fields by Confrontation: Visual Fields Range Testing Visual Fields by Confrontation: Visual Fields Range
Classification of Sex Steroid Hormones Classification of Sex Steroid Hormones
International Television Viewing Rates in Childhood In most developed countries, children watch TV International Television Viewing Rates in Childhood In most developed countries, children watch TV
Prevalence of Diabetes in the United States, 2010–2012, Age 20 and Older, Based on Race and ... Prevalence of Diabetes in the United States, 2010–2012, Age 20 and Older, Based on Race and ...
The places on Tom’s body where touches elicited sensations in his phantom hand. (Based on ... The places on Tom’s body where touches elicited sensations in his phantom hand. (Based on ...
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library