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