Previous Year Question
In the context of permissible noise level match List-I with List-II and select the answer from the code given below the lists.
List-I (Area) | List-II (Permissible Noise Level) |
A. Residential area | 1. 50 dB |
B. Silent zone | 2. 55 dB |
C. Industrial area | 3. 65 dB |
D. Commercial area | 4. 70 dB |
Codes:
A-1, B-2, C-3, D-4
A-3, B-4, C-2, D-1
A-2, B-1, C-4, D-3
A-2, B-1, C-3, D-4
Correct Answer: C
Detailed Solution
In India, ambient noise standards are prescribed under the Noise Pollution (Regulation and Control) Rules, 2000. Separate day-time and night-time limits are prescribed for Industrial, Commercial, Residential and Silence Zones.
Residential Area — 55 dB: The permissible day-time noise level for a Residential Area is 55 dB(A) Leq.
Silence Zone — 50 dB: The permissible day-time limit in a Silence Zone is 50 dB(A) Leq.
Commercial Area — 65 dB: The permissible day-time limit in a Commercial Area is 65 dB(A) Leq.
Industrial Area — 70 dB in the question: Under the official rules, the Industrial Area limit is 75 dB during daytime and 70 dB during nighttime.