Ambient noise levels on a site located in vicinity of a busy road are expected to be in the range:किसी व्यस्त मार्ग के समीप स्थान पर परिवेशी ध्वनि स्तर की अनुमानित रेंज क्या होगी?
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Correct answer: C. 75 to 85 dB75 से 85 डेसीबल
Explanation
Heavy road traffic typically produces noise of about 70–85 dB near the road. 35–45 dB is like a quiet residential area or library, 50–60 dB is normal conversation, and 110–120 dB is near the threshold of pain (rock concert, jet take-off). Hence 75 to 85 dB.भारी सड़क यातायात सड़क के पास सामान्यतः लगभग 70–85 डेसीबल ध्वनि उत्पन्न करता है। 35–45 डेसीबल शांत आवासीय क्षेत्र या पुस्तकालय जैसा है, 50–60 डेसीबल सामान्य बातचीत है, और 110–120 डेसीबल पीड़ा-सीमा के निकट है (रॉक कॉन्सर्ट, जेट उड़ान)। अतः 75 से 85 डेसीबल।More People, Development and Environment questions
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