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Thapar University 2006 B.E Electrical and Electronics Engineering Environmental Studies - Question Paper

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Thapar Institute of Engineering & Technology
B.Tech Electrical & Instrumentation (1st Year)
Final Term exam
EN001 (Environmental Studies)

Max. Marks - 60

Time 3 Hr

THAPAR INSTITUTE OF ENGINEERING AND TECHNOLOGY End Semester Examination - December 2006 EN-001 - ENVIRONMENTAL STUDIES (Instructor : Dr. N.Tejo Prakash)

Max. Marks - 60

Time 3 Hr

Mention the Branch, Group-number and Reg. Number without fail on the regular answer sheet (for Section A) as well

as objective answer sheet (for Section B

REAP THE INSTRUCTIONS BEFORE ANSWERING THE QUESTIONS

THE QUESTION PAPER HAS TWO SECTIONS:

SECTION A* (SHORT ANSWER QUESTIONS) & SECTION B (OBJECTIVE QUESTIONS). ANSWER THE QUESTIONS FOR SECTION A* IN REGULAR ANSW ER BOOK.

SECTION A (20 MARKS)

(EACH QUESTION IS OF 1 MARK-20 QUESTIONS X 1 = 20 MARKS)

ANSWERS SHOULD BE PRECISE AND MAXIMUM OF TWO-THREE SENTENCES WRITE ANSW ERS IN REGULAR ANSWER BOOK

1. List functional components of ecosystem.

2. What are different natural and man-made impacts on the environment?

3. What are causes that pose threat to biodiversity?

4. What is eutrophication?

5. List the major environmental laws in India.

6. What does Scoping in EIA constitute?

7. How is thermal pollution caused?

8. What is ecological succession?

9. List the sources of marine pollution?

10. Why is it necessary to involve public in EIA?

11. What are the advantages of vermicomposting over conventional composting?

12. What is a Dobson unit?

13. What is the significant difference between COD and BOD?

14. List ecological benefits of biodiversity?

15. What are the organisms involved with nitrogen fixation in root zone?

16. What is leaching of pollutant?

17. What is Love Canal famous for?

18. What are environmental ethics?

19. What are induced species?

20. What is the difference between Solar-Thermal and Solar-photovoltaic devices?

SECTION B (OBJECTIVE QUESTIONS) STARTS FROM NEXT PAGE

SECTION B (40 MARKS)

(EACH QUESTION IS OF 0.5 MARKS - 80 QUESTIONS X 0.5 = 40 MARKS)

THERE IS NEGATIVE MARKING OF 0.25 FOR EVERY WRONG ANSWER IN SECTION B*

* ATTACH/TIE-UP SECTION B ALONG WITH REGULAR ANSWER BOOK (used for section A) QUESTION(S) NOT ATTEMPTED SHOULD BE MARKED X

ANSWER WITH OVER W RITING OR CUTTING WILL BE CONSIDERED AS WRONG ANSWER; USE ONLY BALL PEN OR INK PEN FOR ANSWERING

>,No_ANSWER IN CAPITAL LETTERS ONLY_Answer

The dominant component of the complex community of forest is ( )

A. Water C. Trees

B. Wildlife D. Microscopic soil organisms

Which of the following statements about forests is not true ( )

A. Forests provide employment for many C. The forest environment provides a

perfect opportunity for ecotourism

B. Some indigenous people completely D. The forest cover of the planet has depend on forests for their livelihood increased in the 20* century

Deforestation results in ( )

A. Loss of species C. Both a and b

B. Soil erosion D. Carbon sequestration

Which of the following causes deforestation ( )

A. Agriculture C. Monoculture plantation

B. Commercial Logging D. All of the above

Air pollution from mining activities can cause ( )

A. Respiratory troubles C. Both a and b

B. Acid rain D. None of the above

Air pollution from mining activities can cause ( )

A. Respiratory troubles C. Both a and b

B. Acid rain D. None of the above

India has the worlds largest deposits of ( )

A. Coal C. Both a and b

B. Mica D. Gold

Large dams are commonly associated with ( )

A. Loss of species C. Inundation

B. Damage to ecosystems D. All of the above

Acceptability of dams could be improved by ( )

A. Minimizing the environmental C. By conducting regular monitoring and impacts periodic review

B. Compensating for involuntary D. All of the above resettlement

Water on earth is recycled through

A. Rain

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B. Water cycle

Food insecurity is a problem related to

A. Food production

B. Poverty

Hydroelectric power is a

A. Nonrenewable source of energy

B. Renewable source of energy

C. Evaporation

D. Carbon cycle

C. Economy

D. All of the above

C. Sustainable source of energy

D. None of the above

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Which of the following components of the environment encompass living things?

A. Atmosphere C. Lithosphere

B. Hydrosphere D. Biosphere

Which of the following components of the environment is responsible for the large scale recycling of matter on Earth?

A. Atmosphere C. Lithosphere

B. Hydrosphere D. Biosphere

Which of the following impacts on hydrosphere is not due to urbanization?

A. Greater demand on water resources

C. Leaching of pollutants from landfills

D. None of the above

C. Weakening of human immune system

D. All of the above

B. Water pollution Ozone depletion will cause

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A. More ultraviolet radiation from the sun to reach the earth.

B. Increased in skin cancer and eye cataracts

Which of the following effects in atmosphere is not due to urbanization?

A. Increased average temperatures C. Increased release of oxygen

B. Increased release of carbon dioxide D. Air pollution Worlds single largest class of refugees is due to

C. Tsunami

D. None of the above

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C. Soil erosion

D. All of the above

C. Both a and b

D. None of the above

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( )

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A. War

B. Environmental degradation Soil productivity is reduced due to

A. Waterlogging

B. Salt buildup in topsoil An ecosystem is a

A. Outer cosmic space

B. Biotic assemblage of plants, animals, and microbes, taken together with

their physico-chemical environment

Energy "flows through the ecosystem in the form of

A. Nitrogen-oxygen bonds C. Carbon dioxide

B. Carbon-carbon bonds D. All of the above

Trophic level refers to

A. Energy level in an ecosystem C.

B. The position of a consumer in the food D. chain

Biomagnification occurs for

A. Materials more soluble in water and C. less soluble in fat

B. Materials more soluble in fat and less D. soluble in water

In the biogeochemical cycles, chemicals are held in reservoir pools for

( )

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Both a and b None of the above

Heavy metals only None of the above

( )

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( )

A. Short duration

B. Long duration

The major reservoir of carbon is

A. Atmosphere

B. Oceans

C. Indefinitely

D. None of the above

C. Biota

D. All of the above

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( )

26 The complementary reactions dealing with energy in carbon cycle are

( )

Evaporation and condensation All of the above

Oxidation

Reduction

( )

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( )

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( )

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A. Oxidation and reduction C.

B. Photosynthesis and respiration D.

Conversion of nitrogen gas to nitrates is called

A. Nitrogen fixation C.

B. Denitrification D.

Major source of emission of sulphur into the atmosphere is

A. Respiration C. Burning of fossil fuels

B. Decomposition of organic matter D. None of the above Which of the following statements is false about carbon monoxide

It is an odorless, colorless gas It is poisonous to human beings

C. It is the result of incomplete combustion

A.

B.

D. It has a lower affinity for hemoglobin compared to oxygen

( )

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C. A secondary air pollutant

D. All of the above

( )

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( )

32

( )

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Ozone is

A. A major harmful ingredient in the photochemical smog

B. Highly reactive

Which of the following can cause acid rains

A. Sulphur dioxide C. Both a and b

B. Oxides of nitrogen D. None of the above Dispersion of air pollutants from chimney depends on

A. Wind speed C. Both a and b

B. Wind direction D. None of the above Public hearing in EIA is meant for recording opinions from

A. Regulatory agencies C. Non-resident Indians

B. Local people and interest groups D. None of the above

34 Disposal of decomposable organic waste into streams will

( )

A. Affect the aquatic life

C. Make the stream water unfit for drinking purpose

D. All of the above

B. Cause dissolved oxygen to deplete BOD is

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( )

A. A measure of the organic matter C. present in a wastewater

Biochemical oxygen demand All of the above

B. Determined in the lab after an D. incubation period of 5 days

Noise could cause

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( )

A. Headache C.

Hearing loss All of the above

B. Speech interference D.

Noise could cause

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( )

A. Headache C.

Hearing loss All of the above

B. Speech interference D.

Thermal pollution of water bodies could be caused by

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( )

A. Air pollution C. Automobiles

B. Power plants D. None of the above MSW with high organic and moisture content is ideal for

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A. Composting C. Both a and b

B. Incineration D. None of the above What are the common characteristic of hazardous wastes

( )

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( )

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( )

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C. Variations in the ecosystem types

D. All of the above

C. Disinfectant

D. Medicine

( )

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( )

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A. Ignitability C.

B. Corrosivity D. Detritus food chain constitutes

A. Herbivores and carnivores C.

B. Omnivores and carnivores D. Biodiversity is

A Totality of species, populations, C.

communities and ecosystems B Variety and variability among living D.

organisms Genetic diversity is

A Genetic variations within a single species

B Number of species present in an area Pyrethrin is a A Natural insecticide B Synthetic pesticide Neem tree is source of

A Pyrethrin C.

B Calabar D.

Reactivity Any of the above

Decomposers and degraders None of the above

Both a and b None of the above

Azadirachtin All of the above

India contains about what percentage of the biodiversity

A 3% C. 16%

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( )

B 8% D. 25%

India is a mega diverse nation from biodiversity point of view due to

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( )

A The vast variety of landforms and C. Both a and b climates

B The large human population D. None of the above

India is home to how many world heritage sites A3 C. 5

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( )

B 4 D. 100

Lion-tailed macaque is

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( )

A An endemic species found in the C.

An extinct species None of the above

Western Ghats B An endemic species found in the D.

Western Himalaya Genetically modified organisms

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( )

A Could never have evolved naturally C.

Could cause Genetic pollution All of the above

B Dont have a natural habitat D.

Sustainable development is

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( )

A A pattern of social economic development which optimizes the economic and societal benefits available in the present, without spoiling the likely potential for similar benefits in the future.

B To achieve a reasonable and equitably distributed level of economic wellbeing that can be perpetuated continually for many human generations C Development that meets the needs of the present without compromising the ability of future generations to meet their own needs

D. All of the above

What are the obstructions to the concept of sustainable development in India

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( )

A Environmental degradation C. Changing lifestyle

B Uncontrolled urbanization D. All of the above

What are the major concerns associated with fossil fuel based energy

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( )

A Limited natural reserves of such C. Threat to long term sustainability

energy

B Detrimental effects on the global D. All of the above environment

Which of the following is considered as a nonconventional energy source

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( )

A Nuclear power C.

B Solar power D.

Rain water harvesting is

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A A recent development for water C.

conservation B A practice that has been in vogue from D. ancient times in India

Hydropower None of the above

( )

A technique for water purification All of the above

57 Water demand in agriculture can be reduced by ( ) A Open channel irrigation C. Both a and b

B Digging wells D. Sprinkler irrigation

58 Major difference between environmental ethics and the conventional philosophy ( ) is

A Anthropocentrism (human centric) of C. Opposition to speciesism in

the conventional philosophy environmental ethics

B Assigning intrinsic value to the natural D. All of the above environment and its non-human contents in environmental ethics.

59	Which of the following is affected by acid rain
	A Vegetation	C.	Building materials
	B Aquatic life	D.	All of the above
60	Ozone hole is found in the
	A Troposphere	C.	Mesosphere
	B Stratosphere	D.	None of the above
61	The thickness of Ozone layer is by measuring
	A Dobson units	C.	Both a and b
	B Chapman units	D.	None of the above
62	Chlorofluorocarbons are
	A Inert compounds	C.	Both a and b
	B Capable of destroying Ozone	D.	None of the above
63	Which of the following is not a greenhouse gas
	A Oxygen	C.	Methane
	B Carbon dioxide	D.	Nitrous oxide
64	GESAMP is a term related to
	A Air pollution	C.	Ozone hole
	B Air purification	D.	None of the above
65	One of these wastes is combustible and compostable, but not recyclable
	A Paper waste	c.	Construction materials
	B Hard Aluminium	D.	Food and yard waste
66	Moisture content of one the following solid waste is high
	A Food waste	C.	Glass
	B Construction material	D.	None of the above
67	Minamata Disease is associated with
	A Lead metal	C.	Both a and b
	B Tributyl Tin	D.	Neither a nor b
68	The pollutant that caused Bhopal Gas Tragedy was
	A methylene isocyanide	C.	methyl isocyanate
	B methoxy isocarmide	D.	None of the above

		A AJuAW 1
69	REM is a unit used to measure
	A biological contamination	C.	organic contamination
	B pesticide contamination	D.	None of the above
70	Failure of biogas plants in India is due to
	A Lack of technical knowhow	C.	Climatic variations
	B Cultural practices	D.	All of the above
71	Energy flow in an ecosystem is a consequence of
	A Laws of gravitation	C.	Laws of thermodynamics
	B Mendels Principles	D.	Wind energy
72	Katkarkalan Village in Punjab is good example for use of
	A Hydropower	C.	Wind energy
	B Solar power	D.	None of the above
73	One of this is an important physical property of solid waste
	A Essential nutrients	C.	Pathogens
	B Density and particle size	D.	None of thebove
74	Anthropogenic causes of drought include
	A Overgrazing	C.	Deforestation
	B Cropping patterns	D.	All of the above
75	Subsidence of land and acid drainage are	associated with impacts of
	A Marine pollution	C.	Organic pollution
	B monoculture plantation	D.	None of the above
76	One of this is associated with biomagnification
	A Food chain	C.	Chemophototrophs
	B Pyramid of classes	D.	None of the above
77	Parasitic ecosystem is an example of
	A Inverted ecological pyramid	C.	Decomposer food chain
	B Upright ecological pyramid	D.	None of the above
78	One of this is not an example of biomass fuel
	A Wood	C.	Charcoal
	B Geothermal heat	D.	Peat
79	The 3R concept is
	A Recreate, Remunerate, Rescue	C.	Reduce, Reuse, Recycle
	B Ride, Right, Respect	D.	None of the above
80	The UNFCCC is associated with
	A Rio Earth Summit	C.	Montreal protocol
	B Johannesburg Summit	D.	None of the above