Lighting and acoustics MCQs
Lighting and acoustics MCQs
Our team has conducted extensive research to compile a set of Lighting and acoustics MCQs. We encourage you to test your Lighting and acoustics knowledge by answering these multiple-choice questions provided below.
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1: What is the science of sound called?
A. Waves
B. Ultrasound
C. Acoustics
D. Sound
2: What does an accelerometer measure?
A. Sound
B. Light
C. Vibration
D. Heat
3: What is the name of a sensor that contains an electrical output that is directly proportional to the acceleration component of the vibration?
A. Accelerometer
B. Velocity
C. Displacement
D. Amplitude
4: What does the Acoustical Society of America do?
A. Publishes standards and information related to the study and applications of acoustics.
B. Grants awards related to acoustics.
C. Conducts research on acoustics.
D. Establishes an organization that studies acoustics.
5: What does the word "acoustical" mean?
A. The study of music
B. The study of the human voice
C. The properties of a material to absorb or reflect sound
D. The study of sound
6: What does an acoustic calibrator do?
A. Used to measure the sound pressure level of a noise source
B. Used to measure the sound intensity level of a noise source
C. Provides a reference noise source to calibrate the performance of sound level meters
D. Used to calculate the sound absorption coefficient of a material
7: What does ACOUSTICAL ANALYSIS refer to?
A. The study of the effects of sound on humans
B. The study of the production, propagation, and reception of sound
C. A review of a space to determine the level of reverberation or reflected sound in the space
D. The study of the effects of sound on animals
8: What does an acoustical consultant do?
A. Provide advice on acoustical requirements and noise control
B. Design websites
C. Draw pictures
D. Build houses
9: What is impedance?
A. The sound pressure produced in a medium.
B. The wavelength of a sound wave in a medium.
C. The speed of sound in a medium.
D. The resistance to the flow of sound through a medium.
10: What is Airborne Noise?
A. Noise that arrives at a point of interest by propagation through the air.
B. Noise generated by the vibration of air
C. Noise generated by impact between two solid surfaces
D. Noise generated by the movement of air
11: What is AIRBORNE SOUND?
A. A musical group
B. Sound that reaches the point of interest by propagation through the air.
C. Sound produced by an aircraft in flight
D. A brand of loudspeakers
12: What is the purpose of architectural acoustics?
A. To protect the occupants from noise
B. To control noise in a building space
C. To evaluate the acoustical quality of a space
D. To support the communications function within the space
13: What is the purpose of an Articulation Class?
A. To classify different types of art
B. To compare acoustical ceilings and acoustical screens for speech privacy purposes
C. To determine the value of a company
D. To rate the quality of a piece of artwork
14: What is the single number rating used for acoustical ceilings and acoustical screens for speech privacy purposes?
A. ARTICULATION CLASS
B. NOISE REDUCTION COEFFICIENT (NRC)
C. ROOM NOISE CRITERIA (RNC)
D. SOUND TRANSMISSION CLASS (STC)
15: What is the measure of speech intelligibility influenced by Acoustical Environment rated from 0.01 to 1.00 called?
A. Amplitude
B. Decibel
C. Sonority
D. Articulation Index
16: What is the area effect?
A. The area of an absorption material has no effect on its sound-absorbing ability.
B. Absorption materials cannot be spaced apart to have greater sound-absorbing ability.
C. Acoustical materials spaced apart can have greater absorption than the same amount of material butted together.
D. The size of an absorption material has no effect on its sound-absorbing ability.
17: What is an ASSISTIVE LISTENING DEVICE?
A. An electronic device that provides amplification of sound to a hearing-impaired person.
B. A device that helps people with their balance
C. A device that helps people with their vision
D. A device that helps people with their hearing
18: What does attenuation refer to?
A. The reduction of sound energy gradually as a function of distance traveled through a medium.
B. The increase of sound energy gradually as a function of distance traveled through a medium.
C. The reflection of sound energy off of surfaces.
D. The ability of a medium to transmit sound energy.
19: What does a weighting do in a sound meter?
A. Allows the meter to largely ignore lower frequency sounds
B. Stops the sound
C. Counts the sound
D. Weighs the sound
20: What does A WEIGHTINGfilter out?
A. No frequency sounds
B. All frequency sounds
C. Higher frequency sounds
D. Lower frequency sounds
21: What is the definition of Ambient Noise?
A. Noise that is not from outside the space
B. Noise that is not from the HVAC system
C. A type of music
D. Noise level in a space from all sources such as HVAC or extraneous sounds from outside the space.
22: What does AMBIENT NOISE refer to?
A. All of the above
B. Noise level from only HVAC
C. Noise level in a space from all sources
D. Noise level from outside the space only
23: What does BAFFLE mean?
A. A type of musical note
B. An ancient Peruvian instrument
C. A device for heating a room
D. A free-hanging acoustical sound absorbing unit
24: What is the meaning of the word "barrier" in the context of effective communication?
A. The process of encoding and decoding messages
B. Anything physical or an environment that interferes with communication or listening.
C. A way to reduce noise in a communication channel
D. A method of nonverbal communication
25: What does BEL stand for?
A. British Empire League
B. Base Energy Level
C. Bell Telephone Laboratories
D. A measurement of sound intensity named in honor of Alexander Graham Bell.
26: What is the definition of "boominess"?
A. An uncontrolled amount of bass in the sound reproduced by a loudspeaker.
B. A deep prolonged sound.
C. A sharp explosive noise.
D. The state or quality of being bool.
27: What does CLOUD stand for in acoustical industry terms?
A. An atmospheric condition caused by a small change in pressure or temperature
B. An acoustical panel suspended in a horizontal position from the ceiling/roof structure.
C. A group of interconnected computers and computer networks that share a common infrastructure
D. A large mass of water vapor that condenses into a visible body
28: What is the cocktail party effect?
A. The mutual attraction of alcohol molecules and water molecules.
B. Sound in a noisy crowded room generated mostly by conversation.
C. A measure of a cocktail's alcoholic strength.
D. Conversation among groups at a cocktail party.
29: What is the function of the cochlea?
A. Helps maintain balance
B. Aids in frequency recognition
C. Allows for movement
D. Assists with hearing
30: What is the CYCLE in acoustics?
A. The loudness of a sound.
B. The pitch of a sound.
C. The complete oscillation of pressure above and below the atmospheric static pressure.
D. The time it takes for a sound wave to travel one wavelength.
31: How many oscillations occur in one second?
A. 100 cycles
B. 60 cycles
C. 2 cycles
D. 1 cycle
32: What is the unit for CYCLES PER SECOND?
A. The number of oscillations that occur in the time frame of one day.
B. The number of oscillations that occur in the time frame of one second.
C. The number of oscillations that occur in the time frame of one minute.
D. The number of oscillations that occur in the time frame of one hour.
33: What is DAMPING?
A. The amplification of vibratory energy in solid media and structures with time or distance.
B. The dissipation of vibratory energy in solid media and structures with time or distance.
C. The reflection of vibratory energy in solid media and structures.
D. The transmission of vibratory energy in solid media and structures.
34: What is decibel?
A. The loudness of a sound is measured in decibels.
B. Decibels are used to measure the amplitude of a sound wave.
C. A decibel is a unit used to measure the Intensity of a sound wave.
D. Sound level in decibels as a logarithmic ratio.
35: What is the unit for distance an elastic body or spring moves when subjected to a static or dynamic force?
A. Meters
B. Seconds
C. Inches or mm
D. Km
36: What is deflection?
A. The distance an elastic body or spring moves when subjected to a static or dynamic force.
B. A measure of the electrical resistance of a conductor.
C. The property of a material that determines how much it will bend under load.
D. The degree to which a substance slows the passage of electromagnetic radiation
37: What does DEAF stand for?
A. Delay, Eliminate, and Avoid Failure
B. Design, Establish, Analyze, and Finish
C. Data, Evolve, Analyze, and Formulate
D. Loss of auditory sensation with or without use of assistive listening device.
38: What is the definition of diffusion?
A. The bending of sound waves around obstacles
B. The reflection of sound waves from a surface
C. The scattering or random reflection of a sound wave from a surface.
D. The amplification of sound waves
39: What is the early decay time derived from?
A. The sound intensity level
B. The reverberation time decay curve
C. The sound pressure level
D. The frequency response
40: What does ECHO stand for?
A. Every Child Has Opportunities
B. Editing Corrects Homophones Objectively
C. Reflected sound producing a distinct repetition of the original sound.
D. Early Childhood Hearing Outreach
41: What does ECHO FLUTTER produce?
A. A continuous sound
B. A clicking, ringing or hissing sound
C. A loud sound
D. A soft sound
42: What is the result of an echo flutter?
A. A faint duplicate of the original sound signal.
B. A clicking, ringing, or hissing sound after the original sound signal has ceased.
C. No sound after the original sound signal has ceased.
D. A loud duplicate of the original sound signal.
43: What is the effective level also known as?
A. The lowest level
B. The highest level
C. The average level
D. The root mean square
44: What is the effective level?
A. The lowest point in a wave.
B. The highest point in a wave.
C. The root mean square of the instantaneous level over a given period of time.
D. The average of the highest and lowest points in a wave.
45: What does FLAME SPREAD indicate?
A. Propagation of flame across a sample
B. The rate at which a fuel is consumed
C. Heat released by a burning substance
D. The amount of air needed for complete combustion
46: What does Flanking refer to?
A. A dance move
B. The sound a dog makes
C. The transmission of sound around the perimeter or through holes within partitions
D. A military strategy
47: What is the full form of FSTC?
A. Field Standard Transmission Class
B. Field Service Transmission Class
C. Full Sound Transmission Class
D. Field Sound Transmission Class
48: What is the FIELD SOUND TRANSMISSION CLASS?
A. A sound transmission rating obtained under "real-life" conditions.
B. The number of decibels produced by a given noise source
C. A measure of a vehicle's engine volume
D. The sound made by a fieldmouse
49: What does the word "Footfall" mean?
A. A unit of measurement for length
B. A type of shoe
C. A form of impact noise that occurs when feet come into contact with a floor.
D. The act of walking
50: What is the main difference between free field and reverberant sound?
A. Free field is indoors while reverberant is outdoors
B. Free field is artificial while reverberant is natural
C. Free field has no obstructions while reverberant sound does
D. Free field has sound waves while reverberant does not
51: Sound waves from a source outdoors are called what?
A. Reflection
B. Refraction
C. Diffraction
D. Free Field
52: What does the word "Frequency" mean?
A. The number of times an event happens
B. The number of oscillations or cycles per unit of time.
C. The amount of time between two events
D. The number of units of time
53: What is hearing impairment?
A. A condition that only affects infants.
B. A condition that only affects the elderly.
C. A degree of hearing loss, temporary or permanent due to many causes.
D. A condition that only affects those who work in noisy environments.
54: What does the unit "Hz" stand for?
A. Homework
B. Henry
C. Hz
D. Hertz
55: What type of sound is produced by the collision of two solid objects?
A. Impact sound
B. Percussion sound
C. Vibrational sound
D. Volcanic sound
56: Which of the following is an example of impact sound?
A. The sound of a rock hitting water
B. The sound of two rocks hitting water
C. The sound of two rocks hitting each other
D. The sound of water hitting a rock
57: What is the mean root square of the instantaneous level over a given period of time called?
A. Root
B. Square
C. Level
D. Intensity
58: What is the drop in sound level for every doubling of distance?
A. 9 dB
B. 6 dB
C. 3 dB
D. 12 dB
59: What is an acoustical treatment plan for rooms in which one end is highly absorbent and the other end is reflective and diffusive?
A. Reflective and diffusive
B. Absorbent
C. LIVE END/ DEAD END
D. DEAD END/ LIVE END
60: What is the average deviation above and below the static value due to sound waves called?
A. Frequency
B. Vibration
C. Sound Pressure
D. Loudness
61: What does masking refer to?
A. The process of hiding
B. The process of covering up
C. The process by which the threshold of hearing of one sound is raised due to the presence of another.
D. The process of concealment
62: What does MASS stand for?
A. The measure of how much of an item is produced.
B. None of the above.
C. The measure of the amount of matter in an object.
D. The fundamental property of a material relevant to sound transmission loss through that material.
63: What does MOUNTING represent?
A. A structure that supports or holds something
B. The highest point of a hill or mountain
C. Standards established by ASTM to represent typical installation for the purpose of testing materials.
D. The process of attaching a horse to a rider
64: What is the definition of noise?
A. A device that amplifies sound
B. Unwanted sound that is annoying or interferes with listening.
C. A soft sound
D. A repeating sound
65: What does NC stand for?
A. Noise Committee
B. Noise Council
C. Noise Criteria
D. National Council
66: What do noise criteria curves measure?
A. Sound levels at loudest locations in a room
B. Sound levels at softest locations in a room
C. Sound levels at average locations in a room
D. Sound levels at noisiest locations in a room
67: What does NNR stand for?
A. Normalized Noise Reduction
B. Noise Negation Ratio
C. Noise Noise Reduction
D. Noise Negation Reaction
68: What does NORMALIZED NOISE REDUCTION mean?
A. Noise Reduction and a 0.5 second reverberation time in the receiving room are unrelated.
B. Noise Reduction not related to a 0.5 second reverberation time in the receiving room.
C. Noise Reduction caused by a 0.5 second reverberation time in the receiving room.
D. Noise Reduction normalized as a function of a 0.5 second reverberation time in the receiving room.
69: What is the meaning of NR?
A. Nearly Right
B. Not Required
C. No Response
D. Noise Reduction
70: What are OCTAVE BANDS?
A. A type of insect
B. Sounds that contain energy over a wide range of frequencies
C. A part of the human ear
D. The highest note on a piano
71: What is the study of the ear called?
A. OTOLOGY
B. Otolaryngology
C. Dermatology
D. Ophthalmology
72: What is the full form of "OTOLOGIST"?
A. A doctor who specializes in the study of ears
B. A doctor who treats hearing problems
C. A doctor who performs surgeries
D. Doctor specializing in the structure, disorders and treatment of the ear.
73: What does the medical term "OTOLARYNGOLOGIST" refer to?
A. A doctor specializing in disorders and treatment of the ear, nose, and throat disorders.
B. A doctor specializing in disorders and treatment of the eye, nose, and throat disorders.
C. A doctor specializing in disorders and treatment of the ear, nose, and throat diseases.
D. A doctor specializing in disorders and treatment of the ear, nose, and mouth disorders.
74: What is PITCH?
A. The length of time a sound lasts.
B. The perceived auditory sensation of sounds expressed in terms of high or low frequency stimulus of the sound.
C. The degree to which a sound is loud or soft.
D. The timbre of a sound.
75: What is presbycusis?
A. A disorder characterized by unusual movements
B. The loss of hearing due primarily to the aging process.
C. A disease that primarily affects the joints
D. A medical condition in which the pupil of the eye cannot constrict
76: What is the loss of hearing due primarily to the aging process called?
A. Meniere's disease
B. Presbycusis
C. Tinnitus
D. Deafness
77: What does REFLECTION measure?
A. The amount of sound wave energy (sound) that is transmitted through a surface.
B. The amount of sound wave energy (sound) that is reflected off a surface.
C. The amount of sound wave energy (sound) that is absorbed by a surface.
D. The amount of sound wave energy (sound) that is produced by a surface.
78: What is the meaning of the word "resonance"?
A. The wavelength of sound waves.
B. The speed of sound waves.
C. The frequency of sound waves.
D. The emphasis of sound at a particular frequency.
79: What is a frequency at which resonance exists?
A. Echo
B. Reverberation
C. Wavelength
D. Resonant frequency
80: How does a sound wave lose energy?
A. By reflection
B. By refraction
C. By absorption
D. By scattering
81: What does SABIN stand for?
A. Square Area Become Invest Now
B. Securities and Exchange Board of India
C. A unit of sound absorption based on one square foot of material
D. Sound Amplification Based on Individual Noise
82: What does the Sabine Formula allow designers to do?
A. Plan reverberation time in a room in advance of construction and occupancy
B. Make Formulas
C. Design rooms
D. Teach children mathematics
83: What is the definition of "Septum?"
A. A type of bacteria
B. The study of ancient buildings
C. A small, delicate bone in the ear
D. A thin layer of material between 2 layers of absorptive material.
84: What is the sound level at the listener’s ear of a speaker above the background noise level?
A. Signal to noise ratio
B. Amplitude
C. Frequency
D. Decibels
85: What does the SMOKE DEVELOPED INDEX compare the smoke development of a particular material to?
A. Wood and metal
B. Soil and water
C. Brick and mortar
D. Concrete panels and red oak.
86: What is sound?
A. Oscillation in pressure, stress particle displacement, particle velocity in a medium
B. Particle velocity in a medium
C. Displacement in a medium
D. Change in pressure
87: What is the definition of sound absorption?
A. The property possessed by materials, objects and air to reflect sound waves.
B. The property possessed by materials, objects and air to conduct sound waves.
C. The property possessed by materials, objects to refract sound waves.
D. The property possessed by materials, objects and air to convert sound energy into heat.
88: What is the sound absorption coefficient?
A. The rate at which energy is lost in a system
B. The amount of energy required to make a sound.
C. The fraction of energy striking a material or object that is reflected.
D. The fraction of energy striking a material or object that is not reflected.
89: What is a sound barrier?
A. A material that when placed around a source of noise inhibits the transmission of that noise beyond the barrier.
B. A device that amplifies sound
C. A type of dance
D. A material that prevents sound from being transmitted
90: What is the decibel scale used to measure?
A. SOUND LEVEL
B. TEMPERATURE
C. WEIGHT
D. SOUND WAVES
91: Sound pressure is the difference between the ____________.
A. Loudness of the sound wave and the total instantaneous pressure
B. Static pressure and the loudness of the sound wave
C. Static pressure and the intensity of the sound wave
D. Static pressure and the total instantaneous pressure
92: What is the sound pressure level, in decibels, of a sound?
A. The sound pressure multiplied by the reference pressure
B. 20 times the logarithm to the base 10 of the ratio of the sound pressure to the reference pressure.
C. The sound pressure divided by the reference pressure
D. 10 times the logarithm to the base 20 of the ratio of the sound pressure to the reference pressure.
93: What is the definition of soundproofing?
A. The conversion of sound waves into electrical energy.
B. The prevention of sound from entering or exiting a space.
C. The study of the behavior of sound.
D. Building materials that make structures impervious to sound or insulates against sound.
94: What does a sound level meter do?
A. A sound level meter records sound.
B. A sound level meter amplifies sound.
C. A sound level meter measures sound intensity.
D. A sound level meter converts sound pressure variations in air into corresponding electronic signals.
95: What is the definition of speech?
A. The act of listening.
B. The act of writing.
C. Communication of thoughts and feelings by spoken words.
D. Communication of thoughts and feelings by written words.
96: What is the degree to which speech is unintelligible between offices called?
A. Speech Intelligibility
B. Speech Confidentiality
C. Office Privacy
D. Speech Privacy
97: What is the definition of speech privacy?
A. The right to freedom of expression and opinion
B. The right to freedom of thought, conscience and religion
C. The right to freedom of assembly and association
D. The degree to which speech is unintelligible between offices.
98: What is sound transmission loss?
A. The difference between the sound power level reflected by a partition and that transmitted through that partition.
B. The difference between the sound power level incident on a partition and that transmitted through that partition.
C. The difference between the sound power level incident on a partition and that absorbed by that partition.
99: What is STRUCTURE BORNE NOISE?
A. Noise that arrives at a point of interest by propagation through a gas
B. Noise that arrives at a point of interest by propagation through a liquid
C. Noise that arrives at a point of interest by propagation through a vacuum
D. Noise that arrives at a point of interest by propagation through a solid structure
100: What does TWA stand for?
A. Temperature Weighted Average
B. Total Workplace Average
C. Time Warner Average
D. Time Weighted Average
List of Lighting and acoustics...
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Lighting and acoustics MCQs
Вопросы по освещению и акустике на русском языке
Preguntas sobre iluminación y acústica en español
日本語での照明と音響の質問
Questioni illuminotecniche e acustiche in lingua italiana
Questions d'éclairage et d'acoustique en langues françaises
Questões de iluminação e acústica em línguas portuguesas
Fragen zur Beleuchtung und Akustik in deutschen Sprachen
照明和声学 照明和声学
أسئلة الإضاءة والصوتيات باللغات العربية
Soal lighting dan akustik bahasa indonesia
