Noise pollution

Which of these is not a source of noise pollution

• Transport

• Household

• Network

• Natural

(a)   noise is mostly commonly associated with the construction and demolition industry

Which is statement is correct

• Low frequency noise is a category of (acoustic) noise that includes unwanted, almost instantaneous sharpsounds.

• Impulsive noise, the frequency range from about 10 Hz to 200 Hz, has been recognised as a special environmental noise problem, particularly to sensitive people in their homes

• Intermittent noise is a noise level that increases or decreases rapidly.

Which of these is not an effect of noise pollution?

• Attacks of stress

• Headaches

• Hearing Problems

• Respiratory problems

Which of these is a disease caused by noise pollution?

• Noise Induced Hearing Loss (NIHL)

• Heart attacks

• Brain strokes

• Meniere's disease

Noise from (a)   are an increasingly prominent feature of the urban environment.

Noise pollution is created if sound is in excess to

• 90-120 dB

• 80-90 db

• 70-78db

• 100-120db

Which of these impact of noise pollution on human health is not governed by

• Intensity of noise

• Sensitivity of human ear

• Socio-economic status of an individual

• Frequency range of noise

Choose the correct options below(two)

• A) Noise levels decrease as we move away from the source of noise

• B) Sound pressure of 2 Pa corresponds to a noise of zero decibel

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• C) Materials with high surface/mass density act as good noise barriers'

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A sound absorbing agent

• Wood

• Polystyrene

• Paper