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