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