PAPER-II
ENVIRONMENTAL SCIENCE

Signature and Name of Invigilator
1.
(Signature) OMR Sheet No. ............................................... (To be filled by the Candidate)

(Name)
Roll No.


2.
(Signature) (In figures as per admission card)



(Name) Roll (In words)
D 8 9 1 4

Time 1 1/4 hours] [Maximum Marks 100
Number of Pages in this Booklet 12 Instructions for the Candidates
1.
Write your roll number in the space provided on the top of this page.

2.
This paper consists of fifty multiple-choice type of questions.

3.
At the commencement of examination, the question booklet will be given to you. In the first 5 minutes, you are requested to open the booklet and compulsorily examine it as below

To have access to the Question Booklet, tear off the paper seal on the edge of this cover page. Do not accept a booklet without sticker-seal and do not accept an open booklet.
Tally the number of pages and number of questions in the booklet with the information printed on the cover page. Faulty booklets due to pages/questions missing or duplicate or not in serial order or any other discrepancy should be got replaced immediately by a correct booklet from the invigilator within the period of 5 minutes. Afterwards, neither the Question Booklet will be replaced nor any extra time will be given.
After this verification is over, the OMR Sheet Number should be entered on this Test Booklet.

4.
Each item has four alternative responses marked and You have to darken the circle as indicated below on the correct response against each item.


Example

where is the correct response.
5.
Your responses to the items are to be indicated in the OMR Sheet given inside the Paper I Booklet only. If you mark at any place other than in the circle in the OMR Sheet, it will not be evaluated.

6.
Read instructions given inside carefully.

7.
Rough Work is to be done in the end of this booklet.

8.
If you write your Name, Roll Number, Phone Number or put any mark on any part of the OMR Sheet, except for the space allotted for the relevant entries, which may disclose your identity, or use abusive language or employ any other unfair means such as change of response by scratching or using white fluid, you will render yourself liable to disqualification.

9.
You have to return the test question booklet and Original OMR Sheet to the invigilators at the end of the examination compulsorily and must not carry it with you outside the Examination Hall. You are, however, allowed to carry original question booklet and duplicate copy of OMR Sheet on conclusion of examination.

10.
Use only Blue/Black Ball point pen.

11.
Use of any calculator or log table etc., is prohibited.

12.
There is no negative marks for incorrect answers.

13.
In case of any discrepancy in the English and Hindi versions, English version will be taken as final.


Number of Questions in this Booklet 50
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8.
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D-89-14


1 P.T.O.
ENVIRONMENTAL SCIENCE
Paper II

Note This paper contains fifty objective type questions of two marks each. All questions are compulsory.
1. Thermal stratification of aquatic ecosystems takes place in

tropical lakes temperate lakes


glacier lakes meandering rivers


2. The scale length of pressure variations in atmosphere in vertical direction is about

3 km 4.8 km


7 km 12 km


3. Which radioactive element is considered as an indoor pollutant

Oxygen 18 Nitrogen 15


Carbon 13 Radon


4. In a closed thermodynamic system, across its boundaries

no transfer of heat is possible.


no transfer of work is possible.


transfer of heat is possible but not of work.


transfer of heat and work is possible.


5. In an urban area, moist air at 27 °C has a mixing ratio of 50 gm per kg. Its virtual temperature is

33.69 °C 38.15 °C


36.15 °C 32.30 °C


6. Under aerobic biodegradation of DDT, which of the following compound is formed

DDD DDE


DDN DDS


7. Among the following heavy metals, which has highest concentration in earth's crust

Chromium Copper


Nickel Zinc


8. Composition-wise halons are related to

CFCs Halides


Hydrocarbons Peptides


9. Which of the following gases has highest absorption co-efficient for solubility in water

Hydrogen Nitrogen


Oxygen Carbon dioxide


10. Quantity of glucose (MW 180) required to prepare 1000 ml of solution is

5 g 50 g


900 g 9000 g


11. Endemic species are

Uniformly distributed across the landscape


Widely distributed


Restricted to a particular area


Continuously distributed globally


12. Which of the following is the in-situ biodiversity conservation site

Arboretum Botanical garden


Biosphere reserve Orchidarium


13. The largest unit of climax communities representing well defined climatic zone is referred to as

Biosphere Biome


Biota Landscape


14. An active, adaptive control process which is able to maintain the overall balance is known as

Bohr's Hypothesis Miller Hypothesis


Gaia Hypothesis Kepler's Law


15. Niche of an organism is

Address Profession


Location Range


16. Out of the total fresh water volume of the frozen form constitutes

60 70


80 50


17. If Q stream flow, P precipitation, E evapotranspiration, .S net change in storage and .T net underground transfers, then the basic water balance equation is

Q (.S .T)


Q (.S .T)


Q .T)


Q (.S .T)


18. Particles with a diameter smaller than 0.002 mm are classed as

Cobble Pebble


Silt Colloids


19. Water storage capacity of which soil is maximum

Sandy loam


Loam


Clay loam


Heavy clay


20. Which among the following is not a hot desert

Sahara Kalahari


Thar Gobi


21. In an ideal MHD power generator, the maximum power P output varies with the velocity

of conducting fuel as


P . u P . u2


max max
3 3/2
P . u P . u
max max
22. Which is the most efficient energy source for producing electricity

Nuclear power


Hydro power


Wind power


Solar power


23. Which of the following types of coal has highest water content

Anthracite


Bituminous coal


Lignite


Subbituminous coal


24. Energy intensity is the amount of energy

produced per unit gross domestic product


consumed per unit gross domestic product


produced per year per unit area of the country


consumed per year per unit area of the country


25. Which is the cleanest fuel for power generation

Coal


Uranium


Hydrogen


Water


26. The mountain that rises a kilometre or more above the surrounding sea floor is called

Oceanic island


Atoll


Seamount


Island arc


27. Which form of As is most toxic As+3 As+2


As+6 As+4






28. Noise climate is represented by

L10 L90


Leq


L50


(L L)2 60


10 90
29. The classical smog is mainly composed of
NO and smoke particulates
x

O3 and SO2


SO2 and NO x


SO2 and smoke particulates


30. According to National Ambient Air Quality Standards the annual average concentration of SPM in a residential area should not exceed

80 µg/m3 100 µg/m3


140 µg/m3 200 µg/m3


31. "Blue baby syndrome" is caused due to intake of water high in

Ammonia Nitrates


Sulphates Sulphides


32. EIA of mining activities involve impact assessment on
I. Geological Environment
II. Biological Environment
III. Aerial Environment

Codes

I only II and III only


I and III only II and III


33. Accreditation of Environmental Consultant Organizations in India is done by

Ministry of Environment, Forest and Climate Change


Central Pollution Control Board


Ministry of Earth Sciences


Quality Council of India


34. Life Cycle Assessment does not include

Life Cycle Inventory of the product


Quantitative improvement in the process of the product


Life Cycle Impact Analysis


Emergency Preparedness Plan


35. A developmental project requires both environmental clearance as well as approval under

Water Act, 1974


Forest (Conservation) Act, 1980


National Environmental Tribunal Act, 1995


Air Act, 1981


36. The best practice of disposal of construction and demolition debris is

Incineration Recycling


Land fills Solidification


37. Pyrolysis of Solid Waste refers to

High temperature aerobic incineration


High temperature anaerobic distillation of waste for energy generation


Ambient aerobic distillation


Ambient anaerobic distillation


38. Kyoto Protocol of 1997 introduced the concept of carbon trading in the year of

2000 2004


2001 2002


39. Citizen's Charter on Environment in the Constitution of India is embodied in

Article 48 Article 48A


Article 49A Article 51A


40. United Nation's Conference on Environment and Development was held in

December, 1993 June, 1992


December, 1995 November, 1996


41. The geometric mean of the numbers 6 and 9 is

6 8


5 7


42. A complete enumerate of all items in the population is

Unrestricted sampling


Non-probability sampling


Census


Sample survey


43. The term 'parameter' is an attribute associated with the data pertaining to

sample population


descriptive statistics sampling technique


44. A solar cell of surface area 5 cm2 delivers a current of 0.1 A at 0.6 V. If the intensity of solar radiation impinging on the solar cell is 1.0 kW/m2, the efficiency of the solar cell is

6 3


30 12


45. Assertion Living systems exposed to drought salinity and freezing show enhanced levels of osmolytes.
Reason Drought, salinity and freezing stress induce water deficit.
In the context of the two statements, which one of the following is correct


Both and are true and is the correct explanation of


Both and are true, but is not the correct explanation of


is true, but is false.


is false, but is true.


46. UN Decade of Education for Sustainable Development is

2000 2009 2005 2014


2010 2019 2020 2031


47. Two kinds of the values distinguished in environmental ethics are

Instrumental value and intrinsic value


Direct use values and social values


Social values and existence value


Indirect use value and aesthetic value


48. The natural sources of methyl bromide in the atmosphere is

Ocean Volcanoes


Landslide Vegetation


49. The part of an actual resource which can be developed profitably in the future is

Non-renewable resources


Potential resources


Reserved resources


Stock resources


50. Trophic state index of aquatic ecosystem is determined by the concentration of
Chlorophyll-a NO
3

PO NO
4
2
Space For Rough Work


Paper-II 12
D-89-14