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Q. Acceptable noise level in dB for auditorium is
A. 25 to 30
B. 40 to 45
C. 35 to 40
D. 45 to 55
Answer: 35 to 40
A. 25 to 30
B. 40 to 45
C. 35 to 40
D. 45 to 55
Answer: 35 to 40
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