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In order to reduce the roadside noise which of the following product Australian Government designed?

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In order to reduce the roadside noise which of the following product Australian Government designed?

(a) Sound tube

(b) Ear buds

(c) Ear repellent

(d) Noise repellent

I had been asked this question during an internship interview.

My query is from Noise Pollution Control Techniques in section Environmental Pollution of Energy Management

1 Answer

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Best answer
Correct answer is (a) Sound tube

Explanation: In Melbourne, Australia a special instrument called as a sound tube is designed. This sound tube reduced the roadway noise without detracting from the area’s aesthetics and thus it lowers the noise pollution.

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