Question

In India permissible ambient noise level for residential area during night is

• A. 65 db
• B. 55 db
• C. 45 db
• D. 40 db

Answer 1

Answer: (C)

45 db

Constructions, vehicles and industries disturbs the peaceful environment of residential areas. It causes distractions and annoyance in not only in institutional areas, but also much discomfort and mental disturbance to patients in hospitals. Therefore there is set prescribed limits of 55 db in day-time and 45 db at night time. Hence, the correct answer is option C.