Question 1
Question
Acoustical and noise control concerns exist in almost every modern building
Question 2
Question
Most commonplace acoustical issues are resolved using a consultant's assistance?
Question 3
Question
An acoustical consultant is usually required for the design of a concert hall or to solve a complicated noise problem.
Question 4
Question
Most sound is non-complex, generally consisting of continum of frequencies.
Question 5
Question
Sound is the ear’s response to pressure fluctuations in the air caused by
Question 6
Question
The lower the TL of an assembly, the greater the sound insulation provided by it
Question 7
Question
The STC of an assembly can be improved if we make it heavier
Question 8
Question
STC of a 2 x 4 wood stud wall with ½” gypsum board each side = 37. To improve it, we can…
Question 9
Question 10
Question
Sound originating within a room can only be reduced by using sound-absorbing materials
Question 11
Question
Sound-absorbing materials(acoustical materials) have a sound-absorption co-efficient of
Question 12
Question
The sound-absorptive coefficient of an assembly =
Answer
-
the sound energy that is NOT reflected by the assembly divided by the total sound energy falling on the assembly
-
the sound energy that IS reflected by the assembly divided by the total sound energy falling on the assembly
Question 13
Question
A closed window is the perfect acoustical absorber because it does not reflect any sound
Question 14
Question
The sound pressure that corresponds to the sensation of pain in the ear is approx
Question 15
Question
Although sound pressures are small, their range is extremely large
Question 16
Question
Massive heavyweight assemblies are horrible sound insulators
Question 17
Question
What are the 3 basic framing members [blank_start]_____________[blank_end], [blank_start]_______________[blank_end], [blank_start]_____________.[blank_end]
Answer
-
Studs & joists
-
Channels
-
Tracks
Question 18
Question
Light gauge steel members are increasingly used as blocking/backing for handrails, upper cabinets, or any other secured material or assembly