Home » A person can make a complainant to the competent authority if the noise levels exceeds the ambient noise levels by Noise Pollution MCQs A person can make a complainant to the competent authority if the noise levels exceeds the ambient noise levels by May 4, 2022 4 Views Q. A person can make a complainant to the competent authority if the noise levels exceeds the ambient noise levels by A. 10 dB B. 20 dB C. 30 dB D. 40 dB Answer: 10 dB