Sound Insulation MCQs
Sound Insulation MCQs
Discover an extensive repository of Sound Insulation MCQs designed to reinforce your understanding of the subject. We offers valuable Sound Insulation MCQ resource to assess your knowledge
1: What is the scientific study of sound called?
A. Acoustics
B. Sociology
C. Geology
D. Biology
2: What does the study of acoustics involve?
A. The scientific study of sound, its production, transmission, and effects.
B. The study of sonic booms
C. The study of animals that produce sound
D. The study of hearing
3: What does the word "acoustical" mean?
A. The properties of a material to absorb or reflect sound (adjective)
B. The study of sound
C. Of or relating to the ear
D. A device used to amplify sound
4: What does the adjective form of acoustical mean?
A. The science of hearing
B. The study of sound
C. The study of the physics of sound
D. The properties of a material to absorb or reflect sound
5: What is the purpose of an acoustical analysis?
A. To determine the level of acoustical absorption in a space
B. To determine the level of reverberation or reflected sound in a space
C. To determine the level of noise in a space
D. To determine the level of light in a space
6: What is an Acoustical Consultant?
A. A medical doctor who specializes in the study of the ear and its disorders
B. Someone who analyses and rates the quality of sounds
C. A professional who is experienced in providing advice on acoustical requirements, and noise control in a variety of situations.
D. A professional who designs and installs sound systems.
7: What does the acoustical environment refer to?
A. The study of hearing
B. The acoustical characteristics of a space or room
C. The study of music
D. The study of sound
8: What is AIRBORNE SOUND?
A. Sound that reaches the point of interest by traveling through the ground.
B. Sound that is generated at the point of interest.
C. Sound that reaches the point of interest by traveling through the water.
D. Sound that reaches the point of interest by traveling through the air.
9: What are the two main types of noise?
A. Transcriptional noise
B. Environmental noise
C. Traffic and HVAC
D. Genetic noise
10: What is the AMPLITUDE?
A. The positive scaler measurement of a sound wave’s trough magnitude during a frequency cycle.
B. The scaler measurement of a sound wave’s frequency during a pressure cycle.
C. The nonnegative scaler measurement of a sound wave’s peak magnitude during a frequency cycle or peak pressure variation.
D. The scaler measurement of a sound wave’s average magnitude during a frequency cycle.
11: AMPLITUDE is the nonnegative scaler measurement of what during a frequency cycle?
A. The average magnitude
B. The minimum magnitude
C. A sound wave's peak magnitude
D. The maximum magnitude
12: What is the main purpose of Architectural Acoustics?
A. To assess the effect of the building on its occupants
B. To support the communications function within the space
C. To determine the character of the building materials used
D. The control of noise in a building space
13: What does AC stand for?
A. Acoustical screens
B. Articulation Class
C. Acoustical Ceilings
D. Acoustical Class
14: What is the difference between AC and NIC?
A. AC is less effective than NIC
B. NIC is based on speech privacy while AC is not.
C. AC is more expensive than NIC
D. AC values increase with increasing privacy, while NIC is based on hearing sensitivity.
15: The ARTICULATION INDEX is a measure of which of the following?
A. Speech intelligibility
B. Reverberation
C. Sound clarity
D. Background noise
16: What does the ARTICULATION INDEX measure?
A. The clarity of the spoken word in a sentence.
B. The number of words spoken in a sentence.
C. Intelligibility of the spoken word in a sentence from 0 to 100%.
D. The length of time it takes to articulate a sentence.
17: Why does having acoustical materials spaced apart increase absorption?
A. Air space
B. More surface area on an acoustical panel
C. More surface area on an acoustical panel, diffraction around the panels, and air space
D. Diffraction around the panels
18: What is the main reason for the increase in efficiency of absorption?
A. Air space
B. More surface area on an acoustical panel
C. Diffraction around the panels
D. Spacing the materials apart
19: What is the sum total of all unwanted residual noise generated from all direct and reflected sound sources in a space called?
A. Background noise
B. Speech noise
C. Sound spectrum
D. Reverberation
20: What is the purpose of a baffle?
A. To absorb sound
B. To reduce reverberation and noise levels
C. To increase reverberation and noise levels
D. To create a more reverberant space
21: What does BAFFLE stand for?
A. A device used to produce light
B. An acoustical sound absorbing unit.
C. A device used to measure sound
D. A device used to clean water
22: What is the definition of BARRIER?
A. A place where you can practice your communication skills
B. An impenetrable wall
C. A device that helps you hear better
D. Anything physical or an environment that interferes with communication or listening
23: What is the main purpose of a bass trap?
A. To increase sound at low frequencies
B. To generate sound
C. To reflect sound
D. To absorb sound at low frequencies
24: What is the range of frequencies that a bass trap can absorb?
A. Mid-range frequencies
B. Sound at low frequencies less that about 100 hertz (Hz)
C. Low frequencies greater than 100 hertz (Hz)
D. High frequency sounds
25: What does BOOMINESS refer to?
A. No frequency reflections
B. Medium frequency reflections
C. Low frequency reflections
D. High frequency reflections
26: CLOUD refers to an acoustical panel suspended in a vertical position from a ceiling or roof structure.
A. True
B. False
27: What is a cloud?
A. A large mass of ice and snow
B. A group of water droplets
C. A natural phenomenon consisting of vapor, water droplets, ice crystals, or a mixture of these
D. An acoustical panel suspended in a horizontal position from a ceiling or roof structure.
28: What is the cocktail party effect?
A. The ability to focus one’s listening attention on a single talker among a mixture of conversations and background noises
B. The ability to focus one’s attention on a single task among a mixture of tasks
C. The ability to focus one’s auditory attention on a single sound among a mixture of sounds and background noise
D. The ability to focus one’s visual attention on a single object among a mixture of objects and background clutter
29: What is the name for the region where the speed of the wave is equal to the speed of sound in air?
A. Coincidence Region
B. Diffraction Region
C. Right Region
D. Interference Region
30: What are the two layers found in constrained layer damping?
A. Viscoelastic damping compound and stiff layers
B. Vibrational energy and resonance
C. Convertion of vibration and heat
D. Drywall and plywood
31: What are the constraining layers in CLD?
A. Asphalt
B. Rigid layers like drywall or plywood
C. Concrete
D. Soil
32: What is the full oscillation of a sound wave's pressure called?
A. Wavelength
B. Cycle
C. Sine
D. Amplitude
33: What is the cycle in acoustics?
A. The number of times a sound wave vibrates per second
B. The time it takes for a sound wave to travel one meter
C. The loudness of a sound
D. The complete oscillation of a sound wave's pressure above and below the atmospheric static pressure
34: What is the definition of cycles per second?
A. The number of beats per minute.
B. The number of vibrations per second.
C. The number of oscillations (cycles) that occur in the time frame of one second.
D. The number of decibels.
35: What is the unit of measure for cycles per second?
A. Minutes
B. One second
C. Hertz
D. Decibels
36: What does DAMPING refer to?
A. The process by which heat is converted into vibrations over time and distance.
B. The process by which vibrations are converted into heat over time and distance.
C. The process by which vibrations are converted into electrical energy over time and distance.
D. The process by which vibrations are converted into sound over time and distance.
37: What is a decibel?
A. A logarithmic unit used to express the difference or magnitude of the level or power of sound intensity.
B. A unit of sound pressure
C. A unit of sound intensity
D. A unit of frequency
38: What is the threshold of pain for the human ear in decibels?
A. 100 dB
B. 120 dB
C. 110 dB
D. 130 dB
39: What is the definition of a "deflection"?
A. The process of altering the course of something
B. The distance an elastic body or spring moves when subjected to a static or dynamic force
C. The act of deterring something
D. The amount of force required to cause an object to move
40: What is the definition of diffusion?
A. The scattering or random reflection of a sound wave from a surface.
B. The direction of a sound wave from a surface.
C. The amplification of a sound wave from a surface.
D. The reflection of a sound wave from a surface.
41: What is the minimum delay required for an echo to be heard?
A. .1 sec
B. .01 sec
C. 1 sec
D. .001 sec
42: How can echo flutters be controlled?
A. With diffusers and sound absorbing products.
B. By adding more reverb
C. By amplifying the sound
D. By bouncing the sound off a hard surface
43: What is the measure of sound pressure over the frequency spectrum represented by curves on a graph called?
A. Volume of Noise
B. Sensitivity of Hearing
C. Pitch of Frequency
D. Equal Loudness Contours
44: Flanking noise is caused by _____________
A. Indirect path of sound transmission traveling around a partition or barrier
B. Sound waves bouncing off of walls
C. Noise under doors
D. Direct path of sound transmission
45: What is the full form of STC?
A. Static Transmission Class
B. Sound Transmission Class
C. Standard Temperature & Pressure Conditions
D. Sound Transmission Capacity
46: What is meant by a "free field?"
A. A sound environment that is free from all bounding surfaces or obstructions.
B. A sound environment that has no noise
C. A sound environment that is small
D. A sound environment that has no reflections
47: What is the SI unit of frequency?
A. Decibels (dB)
B. Hertz (Hz)
C. Meter (m)
D. Seconds (s)
48: What is the unit used to measure acoustic frequency?
A. Hertz
B. Cycles/second
C. Minutes
D. Seconds
49: What is the main purpose of frequency analysis?
A. To determine the overall volume of a sound.
B. To determine the volume of sounds at various frequencies that make up the overall sound’s spectrum.
C. To determine the single pure frequency of a sound.
D. To determine the pitch of a sound.
50: What is a sound composed of?
A. A sound is composed of multiple frequencies.
B. A sound is composed of lower frequency pitches.
C. A sound is composed of higher frequency pitches.
D. A sound is composed of a single frequency.
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