Noise Pollution MCQs | Noise Pollution Objective Type Questions & Answers

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Questions
21 Allowed noise level by WHO in residential areas is
A 25 dB
B 50 dB
C 75 dB
D 100 dB

Answer: 50 dB
22 At what level a sound becomes physical pain?
A Above 50 dB
B Above 70 dB
C Above 80 dB
D Above 100 dB

Answer: Above 80 dB
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23 Noise is
A an unwanted noise
B an irritant
C a source of stress
D all of the above

Answer: All of the above

Noise Pollution – Multiple Choice Questions with Answers | EBook

24 The level of sound during normal conversation is
A 20 dbA
B 40 dbA
C 60 dbA
D 80 dbA

Answer: 60 dbA
25 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

Answer: All of the above
26 Following contributes the maximum noise
A transport sector
B industrial and construction machinery
C special events
D none of the above

Answer: Transport sector
27 Research suggests that noise pollution is the highest in ___ income neighbourhoods.
A low
B medium
C higher
D all of the above

Answer: Low
28 Sound is measured in
A Hertz
B Decibel
C ppm
D none of the above

Answer: Decibel
29 Apart from hearing loss, effects produced by excessive noise / noise pollution are 1) Migraine headaches 2) Heart Palpitation 3) Dizziness 4) Nausea 5) Gastric Ulcers
A Only 1, 2 and 3
B Only 1, 2, 3 and 4
C Only 4 and 5
D All of the above

Answer: All of the above
30 Which of the following zones are correctly matched with their permitted noise level? 1) Industrial --------- 90 dB 2) Commercial ----- 75 dB 3) Residential ------- Silence Zone 4) Courts ------------- 55 dB
A Only 1 and 2
B Only 2 and 3
C Only 3
D None of the above

Answer: None of the above

Noise Regulation Rules under the Environment Protection Act, 1986 regulate noise levels in industrial (75 dB), commercial (65 dB) and residential zones (55 dB). It also establishes zone of silence (100m) near schools, courts, hospitals, etc.

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