Noise Pollution MCQ with answer and solution

Concept

Acceptable noise level for school buildings

Formula

NONE

Step-by-step solution

1. According to IS 4954-1968 and general environmental noise criteria, acceptable indoor noise levels vary based on building usage. 2. For educational institutions such as schools and college buildings, the recommended acceptable noise level range is 45 dB to 50 dB. 3. Therefore, the acceptable noise level for a school building is 45 to 50 dB. Answer: A

Explanation

For educational institutions and school buildings, acceptable noise levels are kept low to maintain a quiet environment conducive to learning and concentration. Standard environmental engineering guidelines specify acceptable noise levels for schools in the range of 45 to 50 dB. Higher ambient noise levels can cause distraction and interfere with effective classroom communication.

Why the other options are wrong

B) 55 to 60 dB is too high for educational institutions and is appropriate for commercial areas. C) 60 to 65 dB is typical for commercial zones and would cause noise disturbance in schools. D) 65 to 70 dB corresponds to noisy commercial or light industrial zones.

Shortcut

Schools need quiet: acceptable noise level for school buildings is 45 to 50 dB.

Common mistake

Confusing general building noise standards with lower WHO classroom recommendations or higher industrial thresholds.