Which material has the highest NRC value among the listed options?

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Prepare for the NYSID Materials and Methods Exam 1. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which material has the highest NRC value among the listed options?

Explanation:
NRC measures how much sound energy a material absorbs in the mid-frequency range; higher NRC means more absorption. Carpet, being soft, fibrous, and porous, traps and dissipates more sound energy than hard surfaces. Gypsum wallboard and wood are dense and smooth, so they reflect more sound and have lower NRC values. Glass windows absorb very little in typical interior use, so their NRC is also low. Therefore, carpet has the highest NRC value among the listed options.

NRC measures how much sound energy a material absorbs in the mid-frequency range; higher NRC means more absorption. Carpet, being soft, fibrous, and porous, traps and dissipates more sound energy than hard surfaces. Gypsum wallboard and wood are dense and smooth, so they reflect more sound and have lower NRC values. Glass windows absorb very little in typical interior use, so their NRC is also low. Therefore, carpet has the highest NRC value among the listed options.

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