4967971
Descrição
Quiz por Ashleigh Picken, atualizado more than 1 year ago
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Criado por Ashleigh Picken
mais de 8 anos atrás
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Questão 1
Questão
Acoustical and noise control concerns exist in almost every modern building
Responda
- True
- False
Questão 2
Questão
Most commonplace acoustical issues are resolved using a consultant's assistance?
Responda
- True
- False
Questão 3
Questão
An acoustical consultant is usually required for the design of a concert hall or to solve a complicated noise problem.
Responda
- True
- False
Questão 4
Questão
Most sound is non-complex, generally consisting of continum of frequencies.
Responda
- True
- False
Questão 5
Questão
Sound is the ear’s response to pressure fluctuations in the air caused by
Responda
-
a vibrating object
-
a back and forth motion of air particles
-
none of the above
Questão 6
Questão
The lower the TL of an assembly, the greater the sound insulation provided by it
Responda
- True
- False
Questão 7
Questão
The STC of an assembly can be improved if we make it heavier
Responda
- True
- False
Questão 8
Questão
STC of a 2 x 4 wood stud wall with ½” gypsum board each side = 37. To improve it, we can…
Responda
-
Add fibrous insulation
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Add Foam board
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Add Structural insulated panels
Questão 9
Questão
NRC stands for
Responda
-
Noise Reduction Corollary
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Noise Reduction Coefficient
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NO RICE CATHY!
Questão 10
Questão
Sound originating within a room can only be reduced by using sound-absorbing materials
Responda
- True
- False
Questão 11
Questão
Sound-absorbing materials(acoustical materials) have a sound-absorption co-efficient of
Responda
-
<0.2
-
>0.2
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>0.4
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<0.4
Questão 12
Questão
The sound-absorptive coefficient of an assembly =
Responda
-
the sound energy that is NOT reflected by the assembly divided by the total sound energy falling on the assembly
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the sound energy that IS reflected by the assembly divided by the total sound energy falling on the assembly
Questão 13
Questão
A closed window is the perfect acoustical absorber because it does not reflect any sound
Responda
- True
- False
Questão 14
Questão
The sound pressure that corresponds to the sensation of pain in the ear is approx
Responda
-
20 PA
-
30 PA
-
10 PA
Questão 15
Questão
Although sound pressures are small, their range is extremely large
Responda
- True
- False
Questão 16
Questão
Massive heavyweight assemblies are horrible sound insulators
Responda
- True
- False
Questão 17
Questão
What are the 3 basic framing members [blank_start]_____________[blank_end], [blank_start]_______________[blank_end], [blank_start]_____________.[blank_end]
Responda
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Studs & joists
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Channels
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Tracks
Questão 18
Questão
Light gauge steel members are increasingly used as blocking/backing for handrails, upper cabinets, or any other secured material or assembly
Responda
- True
- False
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