Question

The permitted noise level in industrial zone is

• A. 75 dB
• B. 65 dB
• C. 55 dB
• D. 100 dB

Answer 1

The correct option is A 75 dB

• Noise pollution is defined as any undesirable human or machine created noise which disturbs the balance or activity of human or animal life.
• Noise pollution can damage physiological and psychological health. High blood pressure, insomnia,stress-related illness(anxiety), sleep disruption, hearing loss, and productivity loss are the problems related to noise pollution.
• Noise or sound is measured in decibels(dB). Typical noise levels measured as follows library(35dB),office(60-65dB),normal traffic(70-80dB),airport( >120).

• The permitted noise level in the industrial zone is 75dB.
  
• So, the correct answer is '75dB'.