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MH SET 2018: 28 January, Paper III, Environmental Sciences

  • Date: 28 January 2018
  • Paper code: JAN31318
  • Series: A
  • Language: Bilingual
  • 20 pages
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Test Booklet Code & Serial No.
                                                                                                                    A
                                          ENVIRONMENTAL SCIENCE
Signature and Name of Invigilator                                                                Seat No.
1. (Signature) .........................................                                                  (In figures as in Admit Card)
      (Name) ................................................                    Seat No. ..............................................................
2. (Signature) .........................................                                                   (In words)

      (Name) ................................................                      OMR Sheet No.

JAN - 31318                                                                                         (To be filled by the Candidate)
Time Allowed : 2½ Hours]                                                                            [Maximum Marks : 150
Number of Pages in this Booklet : 20                                                   Number of Questions in this Booklet : 75
                     Instructions for the Candidates
1.        Write your Seat No. and OMR Sheet No. in the space provided            1.
          on the top of this page.
2.        This paper consists of 75 objective type questions. Each question
          will carry two marks. All questions of Paper-III will be compulsory,   2.
          covering entire syllabus (including all electives, without options).
3.        At the commencement of examination, the question booklet
          will be given to the student. In the first 5 minutes, you are
          requested to open the booklet and compulsorily examine it as           3.
          follows :
          (i)      To have access to the Question Booklet, tear off the
                   paper seal on the edge of this cover page. Do not accept
                                                                                         (i)
                   a booklet without sticker-seal or open booklet.
          (ii)     Tally the number of pages and number of questions
                   in the booklet with the information printed on the                    (ii)
                   cover page. Faulty booklets due to missing pages/
                   questions or questions repeated or not in serial
                   o rder or any other discre pancy should not be
                   accepted and correct booklet should be obtained
                   from the invigilator within the period of 5 minutes.
                   Afterwards, neither the Question Booklet will be
                   replaced nor any extra time will be given. The same
                   may please be noted.
          (iii)    After this verification is over, the OMR Sheet Number
                   should be entered on this Test Booklet.                               (iii)
4.        Each question has four alternative responses marked (A), (B),
          (C) and (D). You have to darken the circle as indicated below on
          the correct response against each item.                                4.                       (A), (B), (C)   (D)
          Example : where (C) is the correct response.

                             A        B                 D
                                                                                                    (C)
5.        Your responses to the items are to be indicated in the OMR
          Sheet given inside the Booklet only. If you mark at any place                                   A        B              D
          other than in the circle in the OMR Sheet, it will not be evaluated.
                                                                                 5.
6.        Read instructions given inside carefully.
7.        Rough Work is to be done at the end of this booklet.
8.        If you write your Name, Seat Number, Phone Number or put               6.
          any mark on any part of the OMR Sheet, except for the space            7.
          allotted for the relevant entries, which may disclose your             8.
          identity, or use abusive language or employ any other unfair
          means, you will render yourself liable to disqualification.
9.        You have to return original OMR Sheet to the invigilator at the
          end of the examination compulsorily and must not carry it with         9.
          you outside the Examination Hall. You are, however, allowed
          to carry the Test Booklet and duplicate copy of OMR Sheet on
          conclusion of examination.
10.       Use only Blue/Black Ball point pen.                                    10.
11.       Use of any calculator or log table, etc., is prohibited.               11.
12.       There is no negative marking for incorrect answers.                    12.
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JAN - 31318/III—A




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JAN - 31318/III—A
                            Environmental Science
                                         Paper III
Time Allowed : 2½ Hours]                           [Maximum Marks : 150
Note : This paper contains Seventy Five (75) multiple choice questions. Each
       question carries Two (2) marks. Attempt All questions.

1.   Under the Biological Diversity Act,              3.   The process used in domestic water

     2002 one of the mandate is to have                    softening, where sodium ion form a

     People’s Biodiversity Registered and                  cationic exchange resin replace the

     is to be documented by :                              calcium & magnesium ion reducing

                                                           the hardness of water is done by :
     (A) Local communities/people
                                                           (A) ion-exchange
     (B) Scientist
                                                           (B) sand filtration
     (C) Dept. of Environment
                                                           (C) sedimentation
     (D) Forest Dept.
                                                           (D) chlorination
2.   In wastewater treatment...................
                                                      4.   COD test in a measure of the oxygen
     is the odor formation and causes
                                                           equivalent of organic matter in
     impact on treatment process.
                                                           wastewater that can be oxidized by :

     (A) Sulfate
                                                           (A) Dichromate in an acid solution

     (B) Chlorine                                          (B) 3 days incubation

     (C) Akalinity                                         (C) 5 days incubation

     (D) Nitrate                                           (D) Incubation with microbes seed

                                                  3                                    [P.T.O.
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5.   In a pre-treatment for sewage                    8.   The list of species may become

     treatment plants following are                        threatened if trade is not strictly

     removed :                                             regulated. For such species requires

     (A) Large suspended material                          export permit are included in the

                                                           category under CITES :
     (B) Grit & large suspended material
                                                           (A) Appendix II
     (C) Settlable material
                                                           (B) Appendix I
     (D) Oily and fatty substances
                                                           (C) Appendix III
6.   In economics resonance use is a

     linear, then in ecology it will be :                  (D) Appendix B

     (A) Circular                                     9.   Life zone system used for classifying

                                                           vegetation formation, based on a
     (B) Carrying capacity
                                                           gradient of mean annual bio-
     (C) Capital
                                                           temperature with latitude and
     (D) Expansion                                         altitutde, percentage precipitation

7.   ..................is used to study genetic            and    evapotranspiration       was

     diversity amongst the species.                        proposed by :

     (A) PCR                                               (A) Holdridge

     (B) RNA                                               (B) Wittakar

     (C) mRNA                                              (C) Clements

     (D) tRNA                                              (D) Odum

                                                  4
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10. Community, which becomes stable           12. A study to reconstruct past


    and in equilibrium with the climate           ecosystem and in particular to see

                                                  how ecosystems and communities
    is known as :

                                                  function before human become a
    (A) Climax community
                                                  major influence :

    (B) Serol community
                                                  (A) Evolutionary ecology

    (C) Mixed community
                                                  (B) Historical ecology

    (D) Pioneer community
                                                  (C) Palaeoecology

11. Illegal trade of endangered species
                                                  (D) Habitat ecology

    of plant and animal is most
                                              13. Precipitation value of biodiversity

    prevalent in :
                                                  is :

    (A) Developed countries
                                                  (A) Consumption use value

    (B) Tropical countries
                                                  (B) Production use value


    (C) Temperate countries                       (C) Ecosystem service value


    (D) Industrialized countries                  (D) Essential value

                                          5                                  [P.T.O.
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14. Phyto-sociological studies the size of       16. Methane campaign of India was lead

                                                     by :
     area selected is based on :
                                                     (A) Dr. M.S. Swaminathan

     (A) Random size                                 (B) Dr. A.P. Mitra

                                                     (C) Dr. B.P. Pal
     (B) Species-area curve
                                                     (D) Dr. S.K. Sinha

     (C) Population of species                   17. Depletion of ozone of stratospheric
                                                     zone cause :
     (D) Quadrate
                                                     (A) CO2 increase

15. Some plants may inhibit the growth               (B) Skin cancer

                                                     (C) Cholera
     of other species by the chemical
                                                     (D) Dengue
     nature of the litter or by special
                                                 18. Indian    standard    method     of
     secretion is known as :                         measurement of Nitrogen dioxide (in

                                                     microgram/Cu meter)       g/m 3 , in
     (A) Allopatric
                                                     ambient air is :

                                                     (A) Improved West & Gaeke
     (B) Allelopathy
                                                     (B) Ultraviolet fluorescence
     (C) Apomict
                                                     (C) Modified Jacob & Hochheiser

     (D) Admixture                                   (D) Spectrophotometry

                                             6
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19. Discharge limit of BOD (in mg/lit)       21. Motor vehicle emission consists of :

                                                 (A) BOD
    in the surface water stream is :

                                                 (B) Carbon monoxide
    (A) 500
                                                 (C) Fluoride-HF
    (B) 100
                                                 (D) Calcium

    (C) 50                                   22. Wet scrubber is used to treat

                                                 pollution of :
    (D) 30
                                                 (A) Water
20. Laboratory, Testing of Biological
                                                 (B) Air
    Oxygen Demand (BOD) is done by
                                                 (C) Soil

    using :
                                                 (D) Noise

    (A) Atomic Absorption Spectro-           23. The stationary phase in reverse

                                                 phase chromatography is :
        photometer

                                                 (A) Polar
    (B) Incubator
                                                 (B) Non-polar

    (C) Gas chromatograph
                                                 (C) Both of these

    (D) Mass spectrometer                        (D) None of these

                                         7                                   [P.T.O.
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28. Which one of the following has the
                                             31. Which    one      of        the   following
    highest melting point ?
                                                 combinations           of    metals    has
    (A) o-bromophenol
                                                 completely filled ‘d’ orbital ?
    (B) p-chlorophenol

    (C) m-bromophenol                            (A) Ti, Fe, Ni

    (D) m-chlorophenol
                                                 (B) Sc, V, Fe

29. Element present in dolomite but
                                                 (C) Zn, Ca, Hg
    absent in limestone :

    (A) C                                        (D) Zn, Co, Cu

    (B) Ca
                                             32. Chlorosis of plants occurs due the
    (C) Mg
                                                 deficiency of :
    (D) O

30. Hardest form of carbon is :                  (A) Ca


    (A) Charcol
                                                 (B) Cl

    (B) Diamond
                                                 (C) N
    (C) Coke

                                                 (D) S
    (D) Graphite

                                         9                                           [P.T.O.
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33. Paris Climate Treaty has been
                                              35. Entropy is given by :

    signed by :
                                                   (A) dp/T
    (A) 191 countries

                                                   (B) dH/T
    (B) 101 countries


    (C) 151 countries                              (C) dH/p


    (D) 77 countries
                                                   (D) dp/dH

34. When energy is converted from one
                                              36. Give in the correct order of increasing
    form to another, the useful output

                                                   diameter the following precipitate
    is never as much as the input. The

    ratio of the useful output to the              drops (Drizzle, shower & rain) :

    required input is called the :
                                                   (A) Drizzle, rain shower

    (A) Efficiency
                                                   (B) Rain drizzle shower
    (B) Consistency

                                                   (C) Shower rain drizzle
    (C) Constancy


    (D) Defficiency                                (D) Rain drizzle shower

                                         10
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37. The emission from use of fossil fuel                39. The most prominent feature of the

     can be reduced by various options,                     food resource base of post Pleistocene
     which of the following is not an                       Europe :
     mitigation option ?
                                                            (A) A dependence on mega fauna
     (A) Use of wind energy
                                                            (B) Diversity
     (B) Increased capacity of traditional

          power plants                                      (C) Dependence on fur-bearing

                                                                animals
     (C) Afforestation

     (D) Use of PV cells for domestic                       (D) New agriculture methods

          power                                         40. When effect did ‘Cold snap’ have on

38. Energy produced from use of fossil fuel                 human populations ?
     globally is quite large which needs to
                                                            (A) It tested the ability of human
     be reduced to cut down emission of
                                                                beings to adapt
     CO2. The energy produced from these

     sources is nearly..............of the total            (B) It had no effect at all

     energy generated :
                                                            (C) It forced all humans to wear

     (A) 80%                                                    clothing

     (B) 60%
                                                            (D) It created an environment that
     (C) 90%                                                    required all populations to

     (D) 50%                                                    move to the equator

                                                   11                                     [P.T.O.
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41. The lake forest Archaic tradition              43. How long ago did human groups

                                                       begin actively controlling their food
    relied on...............resources : the

                                                       sources by artificially producing
    Maritime Archaic hunted................
                                                       conditions under which these
    creatures.
                                                       sources would grow ?

    (A) Pelagic : midden
                                                       (A) Within the past 8,000 years

    (B) Lacustrine : pelagic
                                                       (B) Within the past 12,000 years


    (C) Midden : littoral                              (C) Within the past 15,000 years


    (D) Littoral : Lacustrine                          (D) Within the past 20,000 years


                                                   44. Evidence of wild grain harvesting
42. The directed breeding of plants and
                                                       and consumption in Israel dates to
    animals is called :
                                                       as early as :

    (A) Foraging
                                                       (A) 20,000 BP

    (B) Natural selection
                                                       (B) 12,000 BP

    (C) Artificial selection                           (C) 10,000 BP


    (D) Herding                                        (D) 8,000 BP

                                              12
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45. The difference between simple                 47. In a 50 ppm Zn standard, an analyst

     foragers and complex foragers :                  determined 54 ppm Zn. The

     (A) Complex foragers focus on a few              calculated error is :

         highly productive resources                  (A) 0·8%

     (B) Complex foragers rely on many                (B) 0·4%

         different food sources
                                                      (C) 1·6%

     (C) Complex foragers are highly
                                                      (D) 8·0%
         mobile
                                                  48. Which anaerobic digestion process
     (D) Complex      foragers    employ
                                                      convert soluble low molecular
         irrigation technology
                                                      components of fatty acids, amino

46. The development of the first satellite            acids and monosaccharides to low

     was a leap forward to satellite                  molecular volatile acids, alcohol,

     technology in India :                            ammonia, H2 and CO2 ?


     (A) Aryabhatta                                   (A) Methanogenesis process


     (B) Bhaskara                                     (B) Acidogenesis process


     (C) IRS-IA                                       (C) Hydrogenesis process


     (D) CARTOSAT-2                                   (D) Hydrolysis process

                                             13                                  [P.T.O.
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49. Which methanogen does not utilize         51. Cumulative conversion of arginine

    hydrogen to reduce the organic
                                                  to putrescine by streptococcus spp.
    compound or CO2 to methane during
                                                  and E. coli signifies the following
    anaerobic digestion process ?

                                                  microbial interaction :
    (A) Methylotrophic methanogens

    (B) Methanotrophic methanogens                (A) Commensalism

    (C) Acetotrophic methanogens
                                                  (B) Synergism

    (D) Hydrogenotrophic methanogens
                                                  (C) Amensalism
50. Why microbial conversion of

    lignocellulosic straw feedstock to            (D) Competition

    bioethanol is difficult ?
                                              52. What provision a typical bioreactor

    (A) Presence of more insoluble
                                                  possess to overcome the vortex
        amorphous cellulose
                                                  formation during fermentation ?
    (B) Absence of insoluble branched

        lignin fraction                           (A) Baffles on the side walls

    (C) Presence of more insoluble                (B) Stuffing boxes
        branched hemicellulose
                                                  (C) Sparger
    (D) Presence of microcrystalline

        cellulose and lignin                      (D) Oxygen probe

                                         14
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53. What is correct in case C : N ratio        55. Which indicator bacteria indicates

    during composting is narrow then               recent fecal contamination of water
    optimal level of 30 – 35 ?
                                                   and detected in glucose azide
    (A) Nitrogen in compost lost as
                                                   broth ?
        ammonia
                                                   (A) Escherichia coli
    (B) Protract the compost

                                                   (B) Streptococcus faecalis
    (C) Enhance decomplexation of

        ions                                       (C) Clostridium perfringens

    (D) Agglomerate      the   compost
                                                   (D) Listeria monocytogens
        material
                                               56. How bioavailability of recalcitrant
54. Which process incorporate essential
                                                   hydrocarbons is increased through
    nutrients (viz. N, P) and electron

    acceptor to contaminated area in               microbial interaction with smaller

    order to promote the activity of               solubilized/pseudosolubilized hydro-
    native microbes for degradation of
                                                   carbon droplets ?
    pollutants ?
                                                   (A) Secretion of biosurfactants
    (A) Biosparging

                                                   (B) Chemotaxis
    (B) Bioaugmentation

    (C) Biostimulation                             (C) Efflux pumps

    (D) Bioventing                                 (D) Altered cell surface property

                                          15                                    [P.T.O.
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57. Which    biological   wastewater            59. Which bacteria form symbiosis with

    treatment system consists of large
                                                    some non-leguminous flowering
    diameter corrugated plastic media
                                                    plants (viz. Alnus, Casurina) for
    centered on a horizontal shaft and
                                                    nitrogen fixation in soils ?
    submerged 40% in wastewater ?

                                                    (A) Bradyrhizobium spp.
    (A) Trickling filter system

                                                    (B) Frankia spp.
    (B) Activated sequencing batch

        reactor                                     (C) Azotobacter vinelandii

    (C) Rotating biological contractors
                                                    (D) Klebsiella spp.

    (D) In-vessel submerged system
                                                60. Which aerobic photosynthetic

58. Which lithotrophic bacteria grow
                                                    prokaryote has heterocysts to fix
    aerobically with CO as a sole source
                                                    nitrogen in acquatic system ?
    of carbon and energy ?
                                                    (A) Cynobacteria
    (A) Alkaligenes eutrophas

                                                    (B) Green sulphur bacteria
    (B) Pseudomonas carboxydovorans


    (C) Thiobacillus thiooxidans                    (C) Frankia


    (D) Nitrobacter winogradskyii                   (D) Algae

                                           16
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61. Which bacteria produces a variety          63. With the spread of warmer climate

                                                   due to global warming there will
    of Nod factors and nodulate a large
                                                   be :
    variety of legumes as well as non-
                                                   (A) Increased mortality due to heat
    legume Parasponia andersonii ?
                                                          waves
    (A) Sinorhizobium meliloti
                                                   (B) Increased mortality due to cold

    (B) Bradyrhizobium japonicum                          waves

                                                   (C) Decrease in number of deaths
    (C) Rhizobium NGR234
                                                          from floods and draughts
    (D) Rhizobium leguminosarum
                                                   (D) Decrease in risk of flooding in
62. Which mycorrhizae penetrate the                       coastal areas

    cell wall of plant root and form           64. Which foods are included in the trial

    arbuscules for carbon/nutrient                 of     plants   that   provided   the

                                                   subsidence base for indigenous New
    exchange ?
                                                   World Civilizations ?
    (A) Ericoid mycorrhizae
                                                   (A) Rice, beans and squash
    (B) Arbutoid mycorrhizae
                                                   (B) Barley, lentils and wheat

    (C) Orchid mycorrhizae                         (C) Maize, beans and squash

    (D) VAM                                        (D) Yarns barley and millet

                                          17                                    [P.T.O.
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65. What is the resultant noise if 8              68. How        many    envioronmental
    sound levels of 50 dB(A) each mixed
                                                      attributes were used to display the
    together ?

    (A) 56 dB(A)                                      relationships in a cross-impact

    (B) 53 dB(A)                                      matrix developed by Johnson and

    (C) 59 dB(A)                                      Bell ?
    (D) 60 dB(A)
                                                      (A)   90
66. The project characteristics and the
    baseline information is brought                   (B) 100
    together by................of impacts.
                                                      (C)   92
    (A) Prediction

    (B) Evaluation                                    (D)   80

    (C) Assessment
                                                  69. Which of the following matrix is
    (D) Identification
                                                      useful as a gross screening tool for
67. Which of the following models is
    frequently used to analyze the air                impact identification ?
    quality impacts of single, elevated
    point source ?                                    (A) Gross-impact Matrix

    (A) Box Model                                     (B) Interaction Matrix
    (B) Mass Balance Model
                                                      (C) Magnitude Matrix
    (C) Gaussian Model

    (D) Pasquill Model                                (D) Leopold Matrix

                                             18
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70. Which of the following methods              73. When water is pumped from wells
    involves an explict and predefined
                                                    in some coastal areas, a problem
    relationship such as mathematical
    model for social impact prediction ?            arises known as :

    (A) Qualitative Description
                                                    (A) Saltwater incursion
    (B) Quantitative Description
                                                    (B) Sand deposition
    (C) Application Specific Predictive
           Technique                                (C) Permeability decrease
    (D) Relative comparisons of the
                                                    (D) Artesian recharge
           effects of alternatives

71. Since 1950-51 under land utilisation        74. Asphyxiants are chemicals that
    in India, area under one of the
                                                    exclude :
    following land-use category is
    decreased :                                     (A) Oxygen
    (A) Area under forest
                                                    (B) Nitrogen
    (B) Fallow land
                                                    (C) Carbon dioxide
    (C) Area under non-agricultural
           uses                                     (D) Methane
    (D) Net sown area
                                                75. Ozone in air is :
72. No. of significant figures in 0·1040
    is :                                            (A) Primary air pollutant

    (A) Three
                                                    (B) Secondary air pollutant
    (B) Four
                                                    (C) Tertiary air pollutant
    (C) Five

    (D) Six                                         (D) Fundamental air pollutant

                                           19                                    [P.T.O.
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Source: Savitribai Phule Pune University. Question paper published by Savitribai Phule Pune University.