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Sound Insulation and Absorption Quiz

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Questions and Answers

What is the primary focus of architectural acoustics?

Isolating unwanted sounds

Reducing sound wave volume

Creating a satisfactory acoustical environment (correct)

Generating sound sources

Which aspect of acoustical design in buildings involves insulating building occupants from intrusive noise?

Structural precautions to reduce noise penetration

Isolation of unwanted sounds (correct)

Internal acoustics of rooms

Planning to keep noise sources as far as possible from quiet areas

What is the difference between sound and noise in the context of acoustics?

Sound is what we hear, unwanted sound is noise (correct)

Sound is unwanted, noise is what we hear

Noise is what we hear, sound is unwanted

Noise is wanted, sound is unwanted

What is the primary purpose of acoustic materials in architectural acoustics?

Providing special acoustic treatments for specific rooms Signup and view all the answers

What is the main purpose of sound insulation?

To eliminate the sound path from a source to a receiver Signup and view all the answers

What is Sound Absorption Coefficient (SAC) related to?

Absorbing or reflecting randomly incident sound power Signup and view all the answers

What does Sound Transmission Class (STC) measure?

Barrier effect of a material or assembly Signup and view all the answers

What is the noise reduction coefficient (NRC) used to rate?

How absorptive a particular material is Signup and view all the answers

What does sound transmission loss (TL) measure?

A door's ability to reduce noise Signup and view all the answers

Which term refers to the bending or 'flowing' of a sound wave around an object or through an opening?

Diffraction Signup and view all the answers

What does the term 'sound-reflecting walls' indicate?

The ability of walls to reflect sound Signup and view all the answers