

MCQOPTIONS
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1. |
Permissible noise level in small conference room is |
A. | 10 to 15 dB |
B. | 15 to 25 dB |
C. | 35 to 40 dB |
D. | 55 to 60 dB |
E. | None of the above |
Answer» D. 55 to 60 dB | |