In Part 1: Provide Minimum Background Noise of Feature S06: Minimum Background S

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试卷: WELL AP v2模拟题 B卷[查看]
In Part 1: Provide Minimum Background Noise of Feature S06: Minimum Background Sound, a sound masking system must be commissioned so that the sound pressure levels (SPL) do not exceed ______ in enclosed rooms labeled as Quiet zones.在第 1 部分：提供功能 S06：最小背景声音的最小背景噪声，必须调试声音掩蔽系统，以便在标记为安静区的封闭房间中声压级 (SPL) 不超过______。
A: 48 dBA.48 分贝
B: 46 dBA46 分贝
C: 42 dBA.42 分贝
D: 38 dBA38 分贝

参考答案: C