Category: Energy Management Objective Questions

Energy & Environment Management Multiple Choice Questions on “Noise Pollution and its Effects”.

1. What is noise?
a) Desirable sound
b) Desirable and unwanted sound
c) Undesirable and unwanted sound
d) Undesirable and wanted sound
Answer: c
Clarification: Noise is defined as an undesirable and unwanted sound. Noise pollution affects human health and can contribute o a general deterioration of environmental quality. Several sources of noise pollution contribute to both indoor and outdoor noise pollution.

2. In which unit sound is measured?
a) Kilometer
b) Pascal
c) Kilogram
d) Decibel
Answer: d
Clarification: Noise pollution is measured in terms of decibel (dB). This parameter depends on the various environmental conditions. If the decibel level increased than the threshold it causes problems to humans and other organisms.

3. Which pollution cause hearing loss in organisms?
a) Air pollution
b) Noise pollution
c) Water pollution
d) Soil pollution
Answer: b
Clarification: Noise pollution can cause various health impacts on humans and other organisms. This health impacts leads to various issues like reduced in the mental health, hearing loss either temporary or permanent, loss in efficiency and many more.

4. What is the dB of a threshold of hearing?
a) 0
b) 10
c) 50
d) 100
Answer: a
Clarification: Decibel of the threshold of hearing is 0, for the rustle of leaves the dB is 10, for broadcasting studio dB is 20 and for Bedroom at night the dB is 30. This dB various based on the noise and the environmental conditions.

5. What is the dB of a threshold of pain?
a) 100
b) 110
c) 120
d) 146
Answer: d
Clarification: Threshold of pain is described as the maximum level in which one can sustain the noise after this the noise and cause several health related issues and it even damage the hearing capacity permanently or temporarily.

6. All sound is noise.
a) True
b) False
Answer: b
Clarification: Not all sound is noise. Sound is the voice below of the threshold of pain where organisms can listen to the voice without any struggle. But noise is the disturbance that arises in the sound and cause problems to organisms.

7. At what decibel instantaneous rupture of membrane happens?
a) 100
b) 120
c) 146
d) 150
Answer: d
Clarification: Instantaneous rapture of the membrane occurs at the decibel of 150. Threshold of pain is caused at the decibel of 146. If the noise level increased to 150 decibels than within no time there will be an instantaneous rupture of membrane occurs.

8. What is the ambient noise level in the residential one during night time?
a) 40 dB
b) 45 dB
c) 50 dB
d) 55 dB
Answer: b
Clarification: The ambient noise level in residential zone during night period is 45 dB. During day time the ambient noise levels in the residential area are 55 dB. Ambient noise levels are different for commercial zone and industrial zones.

9. What is called for a temporary hearing loss?
a) Temporary ear pain
b) Temporary hearing problem
c) Temporary threshold shift
d) Temporary hearing shift
Answer: c
Clarification: Temporary hearing loss is often called a ‘temporary threshold shift’. People suffering from this condition are unable to detect weak sounds. If a person got this problem, hearing ability is usually recovered within a month of exposure.

10. What is the permissible noise limit of 120 db?
a) 30 minutes
b) 2 minutes
c) 1 minute
d) 30 seconds
Answer: d
Clarification: One can hear 120 db for a duration of 30 seconds. For 30 seconds the permissible noise limits is 120 db. If someone hear more than this duration there are high chances of hearing loss and other mental health issues.

11. 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: c
Clarification: Sound is measured in terms of decibels (db). World Health Organization prescribed optimum noise level as 45 db during day time and 35 db during night time. Anything above 80 db is hazardous.

12. Which of the following sound is pleasant to our ears?
a) Heavy machinery
b) Transportation equipment
c) Loud noise
d) Music
Answer: d
Clarification: Among the above options music is the only sound which pleasant our ears rest of the sounds cause irritation by its unpleasant noise and cause damage to the hearing permanently or temporarily.

13. Wildlife faces more problems than humans due to noise pollution, because animals dependent on_______________
a) Noise
b) Sound
c) Actions
d) Behavior
Answer: b
Clarification: Animals develop a better sense of hearing than us since their survival depends on it. Wildlife faces far more problems than humans because wildlife depends on sound to protect themselves from enemies more than humans.

14. The degree of hearing loss depends on the duration as well as the intensity of the noise.
a) True
b) False
Answer: a
Clarification: For example, one hour of exposure to a 100 db sound level can produce a temporary threshold shift that may last for about one day. In factories workers subjected to high sounds for several hours in a day. It will cause hearing loss and other mental issues.

Energy & Environment Management Multiple Choice Questions on “Value of Biodiversity & Bio-piracy”.

1. How many types of economical values are there for biodiversity?
a) One
b) Two
c) Three
d) Four
Answer: b
Clarification: Economically there are two main types of values of biodiversity are there. They are, a) Use value, and b) Non use value. In Use value there are three types namely direct values, indirect values, and option values. In Non use value there are two types namely bequest value and existence value.

2. What are called for the value of nature’s products that are consumed directly?
a) Productive value
b) Indirect value
c) Non-consumptive value
d) Consumptive value
Answer: d
Clarification: Consumptive values are the values of nature’s products that are consumed directly. Some of the examples of consumptive values are firewood’s, fodder and meat. Consumptive use value seldom appears in National income accounts.

3. “Flowers offered to the god” is an example of ___________________
a) Non-consumptive values of biodiversity
b) Consumptive values of biodiversity
c) Social value of biodiversity
d) Ethical values of biodiversity
Answer: c
Clarification: Biodiversity in India is important for its religious, spiritual and other cultural uses. Many plants and animals have ritual significance. The entire ecosystem is utilized for cultural and spiritual purposes.

4. Which one of the following values of diversity we can classified for ‘The beauty of waterfall in the Western Ghats’?
a) Ethical values
b) Social values
c) Option values
d) Aesthetic values
Answer: d
Clarification: Aesthetic value provides physical, intellectual and emotional satisfying for humans. Nearly everyone enjoys wildlife and joy makes our lives good lives. It will reduce the stress and give a great pleasure to eyes.

5. Why biodiversity is of great scientific value?
a) Because many species of plants and animals are the subjects of our research
b) Because biodiversity can be use only in space
c) Because biodiversity can only be useful for scientist
d) Because biodiversity provides only few products that helps for humans
Answer: a
Clarification: During the usage of many species for research and in turn we get a lot of knowledge on plants, insects and animals from this we find better ways of making medicines, hybrid plants, and many other things that are helpful to humans.

6. Biodiversity provides Option values.
a) True
b) False
Answer: a
Clarification: Option values include unknown potential of biodiversity. There are many plants and animals which have not yet been discovered or even if they have been discovered we do not know the importance of such plants.

7. Which one of the following is the backbone of viable ecosystems on which we depend on for basic necessities?
a) Pollution
b) Atmosphere
c) Biodiversity
d) Pollination
Answer: c
Clarification: Biodiversity forms the backbone of viable ecosystems on which we depend on for basic necessities. These ecosystem services play an important role in the functioning of our climate and in both air and water quality.

8. What is called for the illegal collection of indigenous plants by corporations ho patent them for there own use?
a) Biopiracy
b) Biomagnifications
c) Biodegradation
d) Biodiversity
Answer: a
Clarification: Biopiracy means the commercial development of biological compounds by a technologically advanced country or organization without obtaining consent from the people or nations in whose territory the material were discovered.

9. Why we should not encourage biopiracy?
a) Because it kills the whole biodiversity
b) Because it doesn’t provide any useful for humans
c) Because it takes years of time
d) Because it creates inequality between nations
Answer: d
Clarification: Greenpeace claims a strong opposition for biopiracy. They claim these practices contribute to inequality between developing countries rich in biodiversity, and developed countries which hosts companies that involve n biopiracy.

10. Why India has been traditionally one of the targets of biopiracy?
a) Because India has more population
b) Because India has large amount of biodiversity
c) Because India’s don’t use biodiversity
d) Because India do not impose any punishment for biopiracy
Answer: b
Clarification: The countries most affected by biopiracy are the most biodiverse. India is the country which has large amount of biodiversity. Because of the richness in biodiversity many countries illegally make patents to the Indian indigenous plants.

11. Which of the following professions are highly affected by biopiracy?
a) Politicians
b) Actors
c) Businessman
d) Farmers
Answer: d
Clarification: Biopiracy is highly affected o farmers. Biopiracy is widely affects the countries which are highly relying on agriculture. Farmers worldwide are outraged that plants they developed are being hijacked by companies.

12. Why we should take strict action against biopiracy in India?
a) Because Indian population is high
b) Because India carrying the Earth’s richest biodiversity
c) Because Indian Area is less
d) Because Indian policies are not efficient
Answer: b
Clarification: India carrying the Earth’s richest biodiversity. It is very much vulnerable to biopiracy. There has been indiscriminate exploitation of traditional knowledge without equitable sharing of benefits. Hence there is an urgent need to make amendments to avoid biopiracy.

13. Biopiracy is legal.
a) True
b) False
Answer: b
Clarification: Biopiracy is illegal because, in violation of international conventions and corresponding domestic laws, it does not respect or adequately compensate the rightful owners of the life forms appropriated.

14. When did Convention on Biological Diversity established?
a) 1990
b) 1991
c) 1992
d) 1993
Answer: d
Clarification: Convention on Biological Diversity is one of the actions taken against biopiracy. It was established in 1993. It establishes sovereign national rights over biological sources and commits the countries which are the members to conserve them.