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Worksheetsnoise pollution
Total questions: 10
Worksheet time: 5mins
In which unit sound is measured?
KiloMeter
Pascal
Decibel
Kilogram
The level at which sound becomes physically painful is:
Above 95 decibel
Above 65 decibel
Above 80 decibel
Above 60 decibel
Which of the following sound is pleasant to our ears?
Heavy machinery
Transportation equipment
Loud noise
Music
Name the harmful effect of noise on the health of a person-
Lack of sleep
Hypertension
Anxiety
All of the above
noise level can be reduced by, setting up heavy industries far away from the residential areas, using loud speakers, auto horns etc.
true
false
noise is usually of high frequency
true
false
noise pollution is created if sound is in excess to
70-75 dB
50-60 dB
80-99 dB
40-65 dB
what should be done to control noise pollution
Automobiles should use effective silencer
Trees should be planted along the road
use of loudspeakers & loud music players should be restriced
all of the above
Roadways noise can be reduced by:
Use of noise barriers
Limitation of vehicle speed
Alteration of roadway Surface texture
All of the above
