Revision_Exam

What is the dependence factor of the degree of hearing loss?

• variation in noise

• Intensity of noise

• Time

• Duration of noise

Which pollution causes hearing loss in organisms?

• Water Pollution

• Sound Pollution

• Noise Pollution

• Air Pollution

What are the effects of Noise pollution?

• Diabetes

• Hypertension and Sleep disturbance

• Lung infection

• Asthma

Which broad classifications of noise are most challenging to treat?

• Noise generated in the receiver

• Noise generated in the transmitter

• External noise

• Internal noise

What is Psychoacoustic?

• The study of perception of environmental quality

• The study of perception of surrounding environment

• The study of perception of noise pollution

• The study of perception of sound

Which one is not a correct point for the definition of offensive noise?

• Inherently offensive characteristics

• Level

• Audibility

• Duration

What is L90 noise?

• The noise level exceeded 90% of the time of measurement duration.

• the noise level below 10% of the time of the measurement duration.

• the noise level exceeded 10% of the time the measurement duration

• the noise level below for 90% of the time of the measurement duration

Which one is not a fundamental step for noise pollution?

• Path

• Source

• Receiver

• Detector

Which Ministry published a draft of Noise Pollution Rules?

• Ministry of Public Affairs

• Ministry of Environment and Forests

• Ministry of Industries

• Ministry of Home Affairs

Which one is an incorrect point for the possible types of sound absorbing materials?

• Wood wool board

• Honeycomb sheet

• Pulp boards

• Acoustic plaster