Question

How can we reduce the noise in industries?

(a) By not using the heavy machinery

(b) By using rigid sealed enclosures

(c) By using more robotics

(d) By reduce the production of the industries

I had been asked this question in class test.

Question is from Noise Pollution Control Techniques in portion Environmental Pollution of Energy Management

Answer 1

Right choice is (b) By using rigid sealed enclosures

To explain I would say: In industries, noise reduction can be done by using rigid sealed enclosures around machinery, lined with acoustic absorbing material. Isolated machines and their enclosures from the floor can reduce the noise pollution at the source.