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