Home ยป What is the ambient noise level in the residential one during night time? Noise Pollution MCQs What is the ambient noise level in the residential one during night time? May 4, 2022 6 Views Q. What is the ambient noise level in the residential one during night time? A. 40 dB B. 45 dB C. 50 dB D. 55 dB Answer: 45 dB