Architectural Acoustics: Unveiling the Magical Science of Sound - Exam
- 1. What material is commonly used to absorb sound in architectural design?
A) Concrete blocks
B) Acoustic foam
C) Wood panels
D) Metal plates
- 2. What is the term for the time taken for sound to decrease in intensity by 60 decibels?
A) Reflection coefficient
B) Diffusion index
C) Sound absorption
D) Reverberation time
- 3. What is the purpose of sound masking in architectural acoustics?
A) Enhance music quality
B) Increase reverberation
C) Amplify sound projection
D) To improve speech privacy
- 4. What type of lighting is often combined with acoustical treatments to maintain a pleasing atmosphere in spaces?
A) Fluorescent lighting
B) String lighting
C) Indirect lighting
D) Spotlighting
- 5. What is the phenomenon where multiple sound reflections combine constructively or destructively called?
A) Transmission
B) Interference
C) Diffusion
D) Refraction
- 6. What is the unit of measurement for sound intensity level?
A) Decibel (dB)
B) Celsius (°C)
C) Hertz (Hz)
D) Newton (N)
- 7. What type of sound waves are primarily responsible for room modes in enclosed spaces?
A) Surface waves
B) Standing waves
C) Pulse waves
D) Transverse waves
- 8. Which method is typically used to calculate the speech transmission index (STI) in architectural acoustics?
A) Modulation transfer function
B) Echoic memory test
C) Frequency spectrum analysis
D) Reverberation calculation
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