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