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Interior Design Professional Practice Exam

Category - Interior Design Practice Exam

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Which of the following best describes the meaning of the rating called NIC (Noise Isolation Class)?
  1. The measurement of surfaces in which sound transmits off of.
  2. A measures the effectiveness of panels in reducing speech intelligibility.
  3. The measurement of placement of elements that block direct line-of-sight travel paths for sound waves.
  4. An interzonal rating that evaluates panels in terms of both absorption and transmission of sound.
Explanation
Answer: D - An interzonal rating that evaluates panels in terms of both absorption and transmission of sound.
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