Quiz on Noise Pollution

What is the permitted noise level as per the Environment Protection Rules 1999?

• 175 decibels

• 125 decibels

• 100 decibels

• 150 decibels

Which of the following is NOT classified as an outdoor source of noise pollution?

• Playing of loudspeakers during festivals

• Construction work

• Loudly played radio

• Industries/factories

What is the effect of being exposed to 95 dB sound levels at work?

• Death

• Physical rupture of the eardrum

• Permanent hearing loss

• Temporary hearing loss

What is a fundamental way in which noise can be controlled?

• Increase noise at the source

• Block the path of noise

• Decrease the path length

• Ignore the recipient

What is a physical effect of noise pollution on the circulatory system?

• Improving heart health

• Decreasing blood pressure

• No effect

• Altering pulse rates

What is a technique for reducing noise associated with high fluid velocities and turbulence?

• Reducing fluid jet velocities

• Using soundproof materials

• Decreasing flow techniques

• Increasing fluid jet velocities

What is a measure to mitigate boat traffic and noise produced in Hong Kong?

• Banning all ships

• Building more airports

• Increasing the number of vessels

• Establishing a sanctuary for dolphins

What is the effect of noise pollution on the performance of school children?

• No effect on performance

• Poor performance in busy areas

• Improves comprehension tasks

• Enhances concentration

What is the effect of noise pollution on workers' efficiency and productivity?

• No effect on productivity

• Decreases efficiency and productivity

• Increases efficiency

• Improves focus

What is a common control measure for noise pollution mentioned in the text?

• Ignoring legislation

• Using loud speakers at all times

• Educating and bringing awareness

• Increasing noise levels