Question 1

____ dB is the level at which a feeling of vibration in the ear can be produced.

Accepted Answer

A)   80
B)   100
C)   120
D)   140E) A) and B)
F) A) and C)

Question 2

What type of ceiling tile material is fire resistant and used in areas of high humidity?

Accepted Answer

A)   Sugarcane fiber
B)   Ceramic
C)   Wood
D)   AluminumE) None of the above
F) All of the above

Question 3

Building codes typically require that floor-ceiling assemblies have an impact isolation class rating of ____.

Accepted Answer

A)   20
B)   50
C)   90
D)   120E) A) and D)
F) None of the above

Question 4

​Explain what baffles are and identify two types.

Accepted Answer

Baffles are acoustical panels hung from ...

Question 5

What are the typical building code STC requirements for residences, apartments, and hotels?

Accepted Answer

Typical building code STC requirements f...

Question 6

Sound waves travel at a speed of approximately ____ ft/sec through the air at sea level.

Accepted Answer

A)   445
B)   900
C)   1130
D)   1270E) A) and B)
F) None of the above C

Question 7

What materials can be used to dampen sound from mechanical equipment?

Accepted Answer

Much of the sound can be dampened by mounting the mechanical equipment on various types of isolator pads. Rubber, neoprene, cork, and fiberglass pads are used for small pieces of equipment or larger pieces located in basement areas. For heavier-duty units mounted within a building or on its roof, a steel spring mounting is used.

Question 8

What is acoustics and how are acoustical materials used?

Accepted Answer

Acoustics is the science of sound, inclu...

Question 9

What is acoustical plaster?

Accepted Answer

Acoustical plaster is composed of a plas...

Question 10

____ is available as thin as 0.0005 in. and is used in walls, doors, and other areas where a thin but effective sound barrier is needed.

Accepted Answer

A)   Lead
B)   Concrete block
C)   Acoustical sealant
D)   GypsumE) A) and B)
F) A) and C) A

Exam 32: Acoustical Materials

____ dB is the level at which a feeling of vibration in the ear can be produced.

Correct Answer
verified

What type of ceiling tile material is fire resistant and used in areas of high humidity?

Correct Answer
verified

Building codes typically require that floor-ceiling assemblies have an impact isolation class rating of ____.

Correct Answer
verified

Explain what baffles are and identify two types.

Correct Answer
verified
Baffles are acoustical panels hung from ...
View Answer

What are the typical building code STC requirements for residences, apartments, and hotels?

Correct Answer
verified
Typical building code STC requirements f...
View Answer

Sound waves travel at a speed of approximately ____ ft/sec through the air at sea level.

Correct Answer
verified
C

What materials can be used to dampen sound from mechanical equipment?

What is acoustics and how are acoustical materials used?

Correct Answer
verified
Acoustics is the science of sound, inclu...
View Answer

What is acoustical plaster?

Correct Answer
verified
Acoustical plaster is composed of a plas...
View Answer

____ is available as thin as 0.0005 in. and is used in walls, doors, and other areas where a thin but effective sound barrier is needed.

Correct Answer
verified
A

Exam 32: Acoustical Materials

____ dB is the level at which a feeling of vibration in the ear can be produced.

Correct AnswerverifiedShow Answer

What type of ceiling tile material is fire resistant and used in areas of high humidity?

Correct AnswerverifiedShow Answer

Building codes typically require that floor-ceiling assemblies have an impact isolation class rating of ____.

Correct AnswerverifiedShow Answer

​Explain what baffles are and identify two types.

Correct AnswerverifiedBaffles are acoustical panels hung from ...View AnswerShow Answer

What are the typical building code STC requirements for residences, apartments, and hotels?

Correct AnswerverifiedTypical building code STC requirements f...View AnswerShow Answer

Sound waves travel at a speed of approximately ____ ft/sec through the air at sea level.

Correct AnswerverifiedC

What materials can be used to dampen sound from mechanical equipment?

What is acoustics and how are acoustical materials used?

Correct AnswerverifiedAcoustics is the science of sound, inclu...View AnswerShow Answer

What is acoustical plaster?

Correct AnswerverifiedAcoustical plaster is composed of a plas...View AnswerShow Answer

____ is available as thin as 0.0005 in. and is used in walls, doors, and other areas where a thin but effective sound barrier is needed.

Correct AnswerverifiedA

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Explain what baffles are and identify two types.

Correct Answer
verified
Baffles are acoustical panels hung from ...
View Answer

Correct Answer
verified
Typical building code STC requirements f...
View Answer

Correct Answer
verified
C

Correct Answer
verified
Acoustics is the science of sound, inclu...
View Answer

Correct Answer
verified
Acoustical plaster is composed of a plas...
View Answer

Correct Answer
verified
A