Question

What is the main source of vehicular noise?

(a) High speed

(b) Movement of the vehicle’s tyres on the pavement

(c) Low pressure

(d) Fuel engine

I have been asked this question in unit test.

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

Answer 1

Correct option is (b) Movement of the vehicle’s tyres on the pavement

The explanation: Most of the vehicular noise comes from the movement of the vehicle’s tyres on the pavement and wind resistance. Poorly maintained vehicles can also increase the noise pollution in the vehicles.