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