This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Maximum permissible noise level in hospital wards is: March 2012 
Select and explain. 
A. 20-35 dBA, B. 35-40 dBA, C. 40-45 dBA, D. 50-60 dBA
A: 20-35 dBA
Answer: A: 20-35 dBA 
Explanation: Ans: A i.e. 20-35 dBA Acceptable noise levels Acceptable noise level in hospitals (wards) is 20-35 dBA Acceptable noise level in library is 35-40 dBA \\ Acceptable noise level in conference is 40-45 dBA Acceptable noise level in restaurants and workshop is 40-60 dBA