The transmission loss of a specified wall construction is 65 dB. The sound transmission loss of the wall if it has an ac
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The transmission loss of a specified wall construction is 65 dB. The sound transmission loss of the wall if it has an ac
The transmission loss of a specified wall construction is 65 dB. The sound transmission loss of the wall if it has an acoustic leak area of 0.01 % is: 30 dB None of the listed responses 50 dB 40 dB
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