SSC Delhi Police Constable Driver 2025 Mock Test General Knowledge Indian Geography Indian Economic and Human Geography
What is the noise limit at the manufacturing stage of all passenger and commercial vehicles as per Environment Protection Rules 1986?
1
61 dB to 70 dB
2
71 dB to 80 dB
3
81 dB to 90 dB
4
91 dB to 100 dB