Noise Pollution Multiple Choice Questions
1. Noise is
a. an unwanted noise
b. an irritant
c. a source of stress
d. all of the above
2. Following contributes the maximum noise
a. transport sector
b. industrial and construction machinery
c. special events
d. none of the above
3. Sound is measured in
a. Hertz
b. Decibel
c. ppm
d. none of the above
4. Following scale is used for loudness of sound or noise
a. linear scale
b. logarithmic scale
c. exponential scale
d. none of the above
5. The level of sound during normal conversation is
a. 20 dbA
b. 40 dbA
c. 60 dbA
d. 80 dbA
6. Allowed noise level by WHO in residential areas is
a. 25 dB
b. 50 dB
c. 75 dB
d. 100 dB
7. Research suggests that noise pollution is the highest in ___ income neighbourhoods.
a. low
b. medium
c. higher
d. all of the above
8. Noise pollution can cause
a. hypertension
b. hearing loss
c. sleep disturbances
d. all of the above
9. Roadways noise can be reduced by
a. use of noise barriers
b. limitation of vehicles speed
c. alteration of roadway surface texture
d. all of the above
10. Following is used for measuring intensity of sound
a. Sound level meter
b. Frequency meter
c. both a and b
d. None of the above