RGPV First Year Engineering (Set B) (Semester 1)
Energy, Environment, Ecology & Society
May 2013
Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

Answer any one question from Q1 & Q2
1 Discuss present status as well as future prospects alongwith merits and demerits of followings : in India,
(a) Solar energy (b) Wind power (c) Geothermal energy (d) Nuclear power
14 M

2 What is energy? Write various renewable and non-renewable sources of energy. Discuss role of fossil fuels in energy scenario of India alongwith their environmental threats.
14 M

Answer any one question from Q3 & Q4
3 Oxygen play vital role in troposphere while ozone do it in stratosphere elucidate. Write down in-situ and ex-situ methods of conservation of biodiversity.
14 M

4 Write short notes on followings:
(a) Carbon cycle (b) Tropic level (c) Endemic & exotic species (d) Hydrosphere
14 M

Answer any one question from Q5 & Q6
5 Write short notes upon followings:
(a) Decibel scale
(b) Photochemical smog
(c) Depletion of ozone layer
(d) Acid rain
14 M

6 Describe the sources, relative contributions and sink of major green-house gases. Elucidate Carbon dioxide function as a global thermostat: The earth would have been as lifeless as moon without carbon dioxide and also as hot as the hot-venus [surface temp-450°C] with too much carbon dioxide?.
14 M

Answer any one question from Q7 & Q8
7 Define the term BOD & COD. Which of these two would be greater for a polluted sewage? Explain compare the advantage of aerobic and anaerobic process.
14 M

8 What is soil and its importance to biosphere? How soil formation & soil-erosion takes place? Discuss eutrophication? and Biological magnification.
14 M

Answer any one question from Q9 & Q10
9 Write short notes upon followings :
(a) Incineration (b) Composting (c) Paralysis (d) Pulverisation
14 M

10 EIA is an intrinsic link between economic growth and environment? justify the statement. Describe various ethical situations belonging to engineering professionals.
14 M

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