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