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Free download in PDF Noise Pollution Multiple Choice Questions & Answers for competitive exams. These Noise Pollution Objective Questions with Answers are useful for competitive exams UGC NET, GATE, IBPS Specialist Recruitment Test.
(1)
What is noise?
[A]
Desirable sound
[B]
Desirable and unwanted sound
[C]
Undesirable and unwanted sound
[D]
Undesirable and wanted sound
Answer: Undesirable and unwanted sound
(2)
Which pollution cause hearing loss in organisms?
[A]
Air pollution
[B]
Noise pollution
[C]
Water pollution
[D]
Soil pollution
(3)
What is the dB of a threshold of pain?
[A]
100
[B]
110
[C]
120
[D]
146
(4)
In anaerobic conditions, mercury is present in; metallic form and
[A]
Humic Acid
[B]
Nitric Acid
[C]
Methane form
[D]
Sulphide form
(5)
Noise pollution effects marine animal's;
[A]
blood circulation
[B]
gene pool
[C]
DNA transposition
[D]
behaviour
(6)
Main sources of noise pollution are
[A]
Transportation equipment
[B]
Musical instruments
[C]
Heavy machinery
[D]
A and C both
(7)
A safe level of noise depends on
[A]
level of noise and exposure to noise
[B]
area
[C]
pitch
[D]
frequency
Answer: level of noise and exposure to noise
(8)
Sound which has Jarring effect on ears is
[A]
Noise
[B]
Music
[C]
pleasant sound
[D]
soul music
(9)
Lower medial lethal dose, higher is the;
[A]
Toxicity
[B]
solubility
[C]
Heat reaction
[D]
Dosage quantity
(10)
Sounds which are pleasant to our ears are called
[A]
noise
[B]
musical sounds
[C]
frequency
[D]
amplitude
(11)
Following is used for measuring intensity of sound
[A]
Sound level meter
[B]
Frequency meter
[C]
both (A) and (B)
[D]
all of the above
Answer: Sound level meter
(12)
Following scale is used for loudness of sound or noise
[A]
linear scale
[B]
logarithmic scale
[C]
exponential scale
[D]
none of the above
(13)
Wildlife faces more problems than humans due to noise pollution, because animals dependent on_______________
[A]
Noise
[B]
Sound
[C]
Actions
[D]
Behavior
(14)
Which of the following sound is pleasant to our ears?
[A]
Heavy machinery
[B]
Transportation equipment
[C]
Loud noise
[D]
Music
(15)
What is the permissible noise limit of 120 db?
[A]
30 minutes
[B]
2 minutes
[C]
1 minute
[D]
30 seconds
(16)
In which unit sound is measured?
[A]
Kilometer
[B]
Pascal
[C]
Kilogram
[D]
Decibel
(17)
At what decibel instantaneous rupture of membrane happens?
[A]
100
[B]
120
[C]
146
[D]
150
(18)
What is the dB of a threshold of hearing?
[A]
0
[B]
10
[C]
50
[D]
100
(19)
Noise pollution can cause
[A]
hypertension
[B]
hearing loss
[C]
sleep disturbances
[D]
all of the above
(20)
Level of noise recommended in most countries is
[A]
30-40 dB
[B]
95-100 dB
[C]
85-90 dB
[D]
75-80 dB
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