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MH SET 2019: 23 June, Paper II, Environmental Sciences

  • Date: 23 June 2019
  • Paper code: JUN-31219
  • Series: A
  • Language: Bilingual
  • 24 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.
JUN - 31219                                                                                          (To be filled by the Candidate)
Time Allowed : 2 Hours]                                                                                [Maximum Marks : 200
Number of Pages in this Booklet : 24                                                    Number of Questions in this Booklet : 100
                      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 100 objective type questions. Each question
           will carry two marks. All questions of Paper II will be compulsory.     2.
3.         At the commencement of examination, the question booklet
           will be given to the student. In the first 5 minutes, you are           3.
           requested to open the booklet and compulsorily examine it as
           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 cover                  (ii)
                    page. Faulty booklets due to missing pages/questions
                    or questions repeated or not in serial order or any
                    other discrepancy 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
                                                                                           (iii)
                    should be entered on this Test Booklet.
4.         Each question has four alternative responses marked (A), (B),
           (C) and (D). You have to darken the circle as indicated below on        4.                      (A), (B), (C)    (D)
           the correct response against each item.
           Example : where (C) is the correct response.

                              A        B                 D                                           (C)
5.         Your responses to the items are to be indicated in the OMR                                      A        B               D
           Sheet given inside the Booklet only. If you mark at any place
           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.                    6.
8.         If you write your Name, Seat Number, Phone Number or put                7.
           any mark on any part of the OMR Sheet, except for the space
                                                                                   8.
           allotted for the relevant entries, which may disclose your
           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.
10.        Use only Blue/Black Ball point pen.
                                                                                   11.
11.        Use of any calculator or log table, etc., is prohibited.
12.        There is no negative marking for incorrect answers.                     12.
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JUN - 31219/II—A




2
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JUN - 31219/II—A
                          Environmental Science
                                     Paper II
Time Allowed : 120 Minutes]                          [Maximum Marks : 200
Note : This Paper contains Hundred (100) multiple choice questions. Each question
       carrying Two (2) marks. Attempt All questions.


1.   Tropical cyclones are most frequently       3.   Hydrostatic equation giving the

                                                      relation between height and
     observed in the Bay of Bengal
                                                      pressure at a given temperature :
     during :
                                                            dp
                                                      (A)      = –    T
                                                            dz
     (A) July – August
                                                            dp   –
                                                      (B)
                                                            dz    T
     (B) Jan. – Feb.
                                                            dp
                                                      (C)      = –    g
     (C) March – May                                        dz

                                                            dp   –
     (D) Oct. – Dec.                                  (D)
                                                            dz    g

2.   The dispersal of pollutants in air is       4.   Earth’s atmosphere is transparent to

     dependent on :                                   infrared radiation in the wavelength

                                                      band which is called atmospheric
     (A) Wind speed only
                                                      window :
     (B) Wind speed and thermal
                                                      (A) 8 – 13
         stability both
                                                      (B) 14 – 17
     (C) Thermal stability only
                                                      (C) 7 20

     (D) Wind speed and humidity
                                                      (D) 5 – 7
                                             3                                      [P.T.O.
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5.   In an area where there are no land                 8.   An inversion layer is seen between
     surface (open ocean) the albedo of
                                                             1000     m    to    1500     m.    If     the
     the surface will be :
                                                             temperature at 1000 m is 280 K,
     (A) Maximum

     (B) Minimum                                             what will be temperature at the top

     (C) More than bare soil                                 of the layer (negative lapse rate

     (D) More than wet soil                                  1.0°C/100 m) ?

6.   In an adiabatic process the ................            (A) 290 K
     remains unchanged.
                                                             (B) 278 K
     (A) Temperature

     (B) Entropy                                             (C) 284 K

     (C) Density
                                                             (D) 285 K
     (D) Pressure
                                                        9.   Subtropical jet stream with its core
7.   If 10 calories of heat is added to a
     system which does not change its                        of strong winds (exceeding 60 kt) at

     specific volume, then as per the first                  nearly 200 hPa ...................... .
     law of thermodynamics the change
     in internal energy of the system will                   (A) Moves equatorward in summer

     be :
                                                             (B) Remains at same location in
     (A) Zero
                                                                  winter and summer
     (B) Positive
                                                             (C) Moves equatorward in winter
     (C) Negative

     (D) Either (A) or (C)                                   (D) Moves poleward in winter

                                                    4
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10. In a dry atmosphere under adiabatic              13. Choose the correct concentration for

    condition the lapse rate is ..............           the gases given in List-I generally

    (A) – g/cv                                           found in the urban environment :

                                                            List-I : O3, CO2, CH4, CO
    (B) – g/cp

                                                         (A) 400     PPMV,      60    PPBV,
    (C) – g/cpR
                                                              1.9 PPMV, 600 PPBV
    (D) – gcp/R
                                                         (B) 60    PPBV,      400    PPMV,
11. Solar constant is :
                                                              1.9 PPMV, 600 PPBV
    (A) 1345 W/M
                                                         (C) 1.9     PPMV,     60     PPBV,
    (B) 1345 W/M2
                                                              400 PPMV, 600 PPBV
    (C) 1200 W/M2
                                                         (D) 600     PPBV,    400    PPMV,
    (D) 345 W/M                                               40 PPBV, 1.9 PPMV

12. If carbon monoxide concentration at              14. Which one of the following causes

    1 atm and 25°C is 9.0 PPMV, then                     warming of the atmosphere but

    concentration in mg/m3 is :                          cooling of the Earth’s surface ?

    (A) 10.3 mg/m3                                       (A) Ozone

    (B) 15.2 mg/m3                                       (B) Black carbon aerosols

    (C) 20.0 mg/m3                                       (C) All greenhouse gases

    (D) 5.6 mg/m3                                        (D) Sulphates and nitrates

                                                 5                                    [P.T.O.
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15. Which of the following gases                18. Generally the rain water having pH
    facilitates formation of tropospheric           ......................... is considered as acid
    ozone in the presence of sunlight ?             rain.

    (A) SO2                                         (A) More than 5.6

    (B) NO2                                         (B) Less than 5.6

    (C) NH3                                         (C) 10

    (D) SF6                                         (D) 7

16. Alamatti Dam is on river Krishna            19. Which one is the most abundant
    and is built in the state :                     greenhouse gas in the atmosphere ?

    (A) Karnatka                                    (A) CH4

    (B) Maharashtra                                 (B) SF 6

    (C) Andhra Pradesh                              (C) N2O

    (D) Telengana                                   (D) CO2

17. What is the source of cloud                 20. Which one of the following is NOT
    formation and precipitation in                  a common component of photo-
    troposphere ?                                   chemical smog ?

    (A) Water vapour                                (A) O3

    (B) Rain                                        (B) SO2

    (C) Infiltration                                (C) PAN

    (D) All of them                                 (D) CFC’s


                                            6
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21. Arrange the following greenhouse             24. Out of As, Bi, Sb and graphite

    gases in the increasing order of their           semimetals, which one of the

    Global Warming Potential (GWP) :                 following is considerded as metalloid ?

    (A) N2O < SF6 < CH4                              (A) Bi


    (B) SF6 < N2O < CH4                              (B) As

                                                     (C) Sp
    (C) CH4 < N2O < SF6

                                                     (D) Graphite
    (D) SF6 < CH4 < N2O

                                                 25. Immobilization of sulphur in soil
22. Decay of one        -particle from
                                                     occurs when the C : S ratio is :
    Thorium (90Th232) will result in :
                                                     (A) Below 50 : 1
    (A) 90Th 231
                                                     (B) Below 100 : 1
    (B) 88Ra 228
                                                     (C) Below 200 : 1
    (C) 88   Ra 223
                                                     (D) Above 400 : 1
    (D) 88   Ra 226
                                                 26. Mass spectrometer separates ions
23. Gypsum is :
                                                     based on the :
    (A) CaCO 3
                                                     (A) Charge

    (B) CaSO4.2H2O
                                                     (B) Mass

    (C) CaCl 2
                                                     (C) Mass to charge ratio

    (D) CaF2                                         (D) Molecular weight

                                             7                                      [P.T.O.
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27. The use of buffer eluent is common        29. Temporary hardness of water is

    in :                                          caused due to :

    (A) Atomic absorption spectrometer            (A) Magnesium chloride
           (AAS)
                                                  (B) Magnesium sulphate
    (B) Gas chromatography
                                                  (C) Magnesium carbonate
    (C) High       performance   liquid
                                                  (D) Calcium sulphate
           chromatography
                                              30. Out of the following, the first step
    (D) Capillary electrophoresis
                                                  of water treatment is :
28. In the process of dynamic dilution
                                                  (A) Filtration
    to quantify odor in water, the

    meaning of olfactory perception               (B) Coagulation

    threshold is :                                (C) Chlorination

    (A) 25% of the jury perceives the             (D) Sedimentation
           odor
                                              31. Which one of the following is a
    (B) 50% of the jury perceives the
                                                  micronutrient for plants ?
           odor
                                                  (A) S
    (C) 75% of the jury perceives the
                                                  (B) B
           odor
                                                  (C) Ca
    (D) 100% of the jury perceives the

           odor                                   (D) P

                                          8
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32. Gas used as fuel in Atomic                 35. Calculate molar mass of HNO3 :

    Absorption spectrometry is :                   (A) 48 g/mol

                                                   (B) 63 g/mol
    (A) Air
                                                   (C) 62 g/mol
    (B) Nitrogen
                                                   (D) 49 g/mol
    (C) Acetylene
                                               36. Factors influencing the environ-

    (D) Nitrous oxide                              mental gradients in species diversity
                                                   are :
33. How many Nickel atoms are present
                                                   (A) Temperature
    in 25 g Ni(MW of Nickel is
                                                   (B) Rainfall
    58.71 g) ?
                                                   (C) Potential evapotranspiration
    (A) 52.7 × 1023 atoms of Ni                    (D) All of the above

    (B) 25.7 × 1023 atoms of Ni                37. In a deep water lake zonation of
                                                   water bodies w.r.t. levels from top to
    (C) 2.57 × 1023 atoms of Ni
                                                   bottom of D.O. and temperature are
    (D) 5.27 × 1023 atoms of Ni                    different zones are :

                                                   (A) Epilimnion      Hypolimnion
34. The following reaction is an example
                                                       Mesolimnion
    of CuCO3 —       Cu + CO2
                                                   (B) Mesolimnion         Epilimnion
    (A) Acid base reaction                             Hypolimnion

    (B) Chemiluminescence                          (C) Hypolimnion      Mesolimnion
                                                       Epilimnion
    (C) Thermal decomposition
                                                   (D) Epilimnion       Mesolimnion
    (D) Photometry                                     Hypolimnion

                                           9                                     [P.T.O.
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38. Which one of the following zones in         41. Oxidation pond method used for
                                                    treatment of clarified sewage work
    a deep water lake is known as Dark
                                                    on :
    Zone ?
                                                    (A) Bacteria
    (A) Littoral zone
                                                    (B) Algae
    (B) Epilimnion zone                             (C) Bacteria and Algae

    (C) Mesolimnion zone                            (D) All of the above

                                                42. One of the following organisms
    (D) Hypolimnion zone
                                                    is     most   commonly    used      as
39. Any organism that obtains its                   biofertilizer :
    nutrition from dead organic material            (A) Choococcus
    is known as :                                   (B) Pediastrum

    (A) Autotrophs                                  (C) Nostoc

    (B) Heterotrophs                                (D) Aphanocapsa

                                                43. Which one of the following is
    (C) Saprotrophs
                                                    observed when analyse sewage
    (D) Chemotrophs                                 polluted water ?

40. Blue baby syndrome is caused to the             (A) Low level of plant nutrient and
                                                           excess growth of algae
    human infants due to :
                                                    (B) Low growth of algae and less
    (A) Nitrate                                            D.O.

    (B) Sulphate                                    (C) High concentration of nutrients
                                                           and low growth of algae
    (C) Calcium
                                                    (D) High concentration of nutrients
    (D) Potassium                                          and excess growth of algae

                                           10
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44. Which of the following is NOT used              47. Contaminated water can spread
    for bringing about bioconversion of                 disease like :
    different substances ?
                                                        (A) TB (Tuberculosis)
    (A) Yeasts
                                                        (B) Typhoid
    (B) Molds
                                                        (C) Tetanus
    (C) Bacteria
                                                        (D) Diphtheria
    (D) Viruses

45. Azolla is used as a biofertilizer as            48. Pick the odd one out :

    it has ...................... that fixes            (A) Agrobacterium – horseradish
    nitrogen.
                                                        (B) Azolla – Anabaena
    (A) Rhizobium
                                                        (C) Frankia – Alder
    (B) Anabaena
                                                        (D) Rhizobium – Peas
    (C) Mycorrhiza
                                                    49. The    ocean     thermal    energy
    (D) Azotobacter
                                                        conversion system that is meant to
46. Which of the following are air-borne
                                                        generate power in most suitable in :
    viral diseases ?

    (A) Chickenpox, influenza, measles                  (A) Sub-tropical region

    (B) Polio, rabies                                   (B) Tropical region

    (C) Tuberculosis, diphtheria                        (C) Cold region

    (D) Cholera, typhoid                                (D) Moderate climate region

                                               11                                    [P.T.O.
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50. Primary cosmic rays are composed                      53. .................... denotes all rectilinear or
                                                                curvilinear features observed on
     of very energetic :
                                                                remotely sensed data products which
     (A) Electron                                               are of geologic origin that reflect
                                                                underlying structure.
     (B) Mesons
                                                                (A) Lineament
     (C) Protons
                                                                (B) Linear

     (D) Neutron                                                (C) Line

51. A discordant igneous intrusion is                           (D) Superlineament

     known as :                                           54. The orbit of the satellite around the
                                                                earth that keeps pace with rotation
     (A) Lopolith
                                                                of earth is known as :

     (B) Laccolith                                              (A) Sunsynchronous orbit

     (C) Dyke                                                   (B) Geostationary orbit

                                                                (C) Low earth orbit
     (D) Sill
                                                                (D) Elliptical orbit
52. Solifluction is a .................... type of
                                                          55. An automated system for capture,
     mass movement.                                             storage, retrieval, analysis and
                                                                display of spatial data is knonw as :
     (A) Subsidence
                                                                (A) GPS
     (B) Slide
                                                                (B) Landsat
     (C) Rapid flow
                                                                (C) GIS

     (D) Slow flow                                              (D) Radiometer

                                                     12
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56. Which of the following is NOT a            58. Which of the following is NOT a part
    social impact ?
                                                   of Environmental Management
    (A) Demographic
                                                   Plan in EIA ?
    (B) Cultural
                                                   (A) Monitoring
    (C) Gender

    (D) Investment                                 (B) Implementation schedule and

57. Scoping in EIA :                                    cost estimates

    (i)   is a systematic exercise that
                                                   (C) TOR
          establishes the boundaries of

          EIA.                                     (D) Mitigation

    (ii) clearly establishes/indicates         59. Which category of projects does not
          what is relevant and what is
                                                   require Environmental Impact
          not.
                                                   Assessment in accordance with Indian
    (iii) serves as a work plan for the

          entire EIA process.                      EIA notification 2006 ?

    Which of the following are true ?              (A) Category B2

    (A) (i) and (ii)
                                                   (B) Category B1
    (B) (i) and (iii)
                                                   (C) Category A
    (C) (ii) and (iii)

    (D) All of the above                           (D) Category C

                                          13                                    [P.T.O.
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60. Which is the Umbrella Act of the            62. Which of these biomedical wastes
    Government of India for Protection
                                                    are to be disposed in yellow colour
    and Conservation of Environment ?
                                                    coded   container    as   per   the
    (A) Water (P & CP) Act, I
                                                    Biomedical Waste (Management and
    (B) Air (P & CP) Act
                                                    Handling) Rules, 2016 ?
    (C) Wildlife Conservation Act
                                                    (A) Human anatomical, animal,
    (D) Environmental Protection Act
                                                        microbiology and biotechnology
61. Schedule II of the Hazardous Waste
    (Management       Handling      and                 wastes

    Transboundary Movement) Rules,                  (B) Waste sharps
    2016 gives :
                                                    (C) Glassware
    (A) List of processes generating
        hazardous waste                             (D) Liquid waste

    (B) List of waste constituents with         63. Montreal Protocol is related to :
        concentration limits
                                                    (A) Greenhouse      gas   emission
    (C) List of hazardous wastes
                                                        reduction
        applicable for import and export
        not requiring prior informed                (B) Reducing ozone depleting
        consent
                                                        substances
    (D) List of hazardous wastes for
                                                    (C) Climate change protocol
        import requiring prior informed
        consent                                     (D) Hazardous waste

                                           14
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64. The following are the types of             67. BOD of effluents discharged in

    environmental audit :                          inland surface waters should not

                                                   exceed :
    (A) Liabilities Audit
                                                   (A) 30 mg/L
    (B) Waste Audits
                                                   (B) 50 mg/L
    (C) EMS Audit
                                                   (C) 10 mg/L
    (D) All of the above
                                                   (D) 100 mg/L
65. Biological treatment of waste water
                                               68. Which of the following can remove
    removes :
                                                   particulate as well as gaseous
    (A) Suspended organic solids                   pollutants from air emissions ?

    (B) Dissolved organic solids                   (A) Wet scrubber

    (C) Dissolved inorganic solids                 (B) Cyclone

    (D) All of the above                           (C) Electrostatic precipitation

66. Select the attached growth process             (D) Bag filter

    from the following :                       69. A size of plot for vegetation studies

    (A) Anaerobic Contact Process                  is decided on the basis of :

    (B) Activated Sludge Process                   (A) No. of species

                                                   (B) Area covered by vegetation
    (C) Rotating Biological Contactor

                                                   (C) Species-Area curve
    (D) Upflow    Anaerobic    Sludge

        Blanket                                    (D) Random

                                          15                                      [P.T.O.
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70. The term species richness in               72. Dams during their early stages of

                                                   formation are relatively barren and
   biodiversity study refers to :

                                                   nutrient deficient supporting very
   (A) Number of genera in an area
                                                   poor aquatic life are :

   (B) Number of species in an area
                                                   (A) Epiphytic

   (C) Species composition in an area
                                                   (B) Parasitic

   (D) Relative abundance of species in            (C) Oligotrophic

          an area                                  (D) Saprophytic

71. The    continuous     increase   in        73. Which one of the following agencies

   concentration of a toxicant at                  has been designated by the Ministry

                                                   of Environment, Forest and Climate
   successive trophic levels in a food
                                                   Change for Indian Eco-Mark
   chain is :
                                                   Scheme ?
   (A) Bioremediation
                                                   (A) Board of Indian Standards

   (B) Biotransformation
                                                   (B) Bureau of Indian Standards

   (C) Bioaugmentation
                                                   (C) Directorate of Marketing

   (D) Biomagnification                            (D) Directorate of Plant Protection

                                          16
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74. ‘‘Salt water intrusion’’ in the coastal        76. The soil formed by the decomposition

     area is :                                         of silt brought by rivers is

                                                       called ...................... .
     (A) A flow of saline water on the
                                                       (A) Red soil
         land through estuary
                                                       (B) Black soil
     (B) An entry of saline water in a
                                                       (C) Alluvial soil
         freshwater aquifer
                                                       (D) Pod soil
     (C) An increase in salinity due to
                                                   77. Soil without living organisms is
         waterlogging
                                                       referred as ..................... .
     (D) An entry of marine water in
                                                       (A) Fertile soil
         river in delta region
                                                       (B) Subfertile soil
75. The process of formation of soil
                                                       (C) Humus
     through the breaking down of rocks
                                                       (D) Mineral substrate
     is called :
                                                   78. Dodo is a flightless bird which is :
     (A) Biogenesis
                                                       (A) Rare
     (B) Pedogenesis
                                                       (B) Extinct

     (C) Biodegradation
                                                       (C) Endangered

     (D) Biomagnification                              (D) Critically endangered

                                              17                                             [P.T.O.
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79. Net primary productivity in an              81. Match the following :

                                                     Reactivity of Substance
    ecosystem refers to :

                                                    (a) Spontaneously and/or vigorously
    (A) Apparent photosynthesis
                                                          react with water

    (B) Total assimilation                          (b) Spontaneously and/or vigorously

                                                          react with air
    (C) Total photosynthesis
                                                    (c) Generate toxic fumes
    (D) Assimilation
                                                    (d) Explosive substance
80. Phytoplankton      stage     during
                                                                 Example
    hydrosere development include the
                                                    (i)   Dynamite

    following community :                           (ii) Aluminium nitrate

    (A) Vallisnaria,        Utricularia,            (iii) Phosphorous pentaoxide

        Hydrilla                                    (iv) Trimethyl aluminium

                                                    Codes :
    (B) Blue green algae, green algae,
                                                          (a)   (b)    (c)   (d)
        diatoms
                                                    (A) (iii) (i)      (iv) (ii)
    (C) Typha, Sagittaria, Phragmites
                                                    (B) (iv) (iii) (ii) (i)

    (D) Nelumbo, Nymphea, Limnan-                   (C) (i)     (ii)   (iii) (iv)

        themum                                      (D) (iii) (iv) (ii) (i)

                                           18
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82. Which of the following components            85. Calculate the resultant noise of four

    of solid waste is reclaimed by                   machines emitting the equal sound

    mechanical recovery ?                            level of 60 dB(A) :

    (A) Food                                         (A) 120 dB(A)

    (B) Plastics                                     (B) 90 dB(A)

    (C) Leaves and plant debris                      (C) 63 dB(A)

    (D) Metals                                       (D) 66 dB(A)

83. Which of the following is ecofriendly        86. Which one of the following is NOT

    process of solid waste management ?              a natural factor that can affect

    (A) Incineration                                 watershed health ?

    (B) Landfilling                                  (A) Fires

    (C) Open dumping                                 (B) Mining

    (D) Conversion into        Compost/              (C) Floods

           Biogas/Bioethanol                         (D) Earthquakes

84. The GRIHA rating was developed               87. Who was the founder of Appiko

    by :                                             movement in Uttara Kannada ?

    (A) ISO                                          (A) Pandurang Hegde

    (B) TERI                                         (B) Ganesh Gauda

    (C) MoEFCC                                       (C) Appa Swamy

    (D) IGBC                                         (D) Sunderlal Bahuguna

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88. Match the following :                           89. Which of the following is an example

    Waste Separation Techniques                         of stepped matrix ?

    (a) Stripping                                       (A) Leopold et al (1971)

    (b) Precipitation
                                                        (B) Johnson and Bell (1975)

    (c) Sorption
                                                        (C) Carstea et al (1976)
    (d) Solvent extraction
                                                        (D) Asian     Development      Bank
          Pollutants Separated
                                                             (1987)
    (i)    Toxic metals
                                                    90. Which of the following is wrong
    (ii) Oils       and       organochlorine
                                                        sentence related to Koyto Protocol ?
           compounds

                                                        (A) Koyto Protocol was adopted in
    (iii) Ethanol
                                                             1997
    (iv) Xylene

                                                        (B) The first commitment period of
    Codes :

                                                             this Protocol ended in 2012
           (a)   (b)    (c)   (d)

    (A) (i)      (ii)   (iii) (iv)                      (C) The Protocol is about the

                                                             reduction of Greenhouse gases
    (B) (iii) (i)       (iv) (ii)

    (C) (iv) (iii) (ii)       (i)                       (D) The second commitment period

    (D) (ii) (iv)       (i)   (iii)                          of the Protocol will end in 2030

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91. Energent woody plants that tolerate        94. Which of the following is NOT a

    salinity of the open sea are known             weakness in the Gaussian Plume

    as :                                           Model ?

    (A) Grasses                                    (A) The model does not evaluate
                                                       dispersion    in      all   three
    (B) Herbs
                                                       dimensions
    (C) Shrubs
                                                   (B) The model cannot be used for
    (D) Mangroves
                                                       reactive pollutants
92. Which one of the plant species
                                                   (C) The model is dependent upon
    occurs in mangrove ecosystem ?                     steady-state conditions

    (A) Rhizophora                                 (D) The model is not designed as a

    (B) Azadirachta                                    long-term air shed pollutant
                                                       evaluator
    (C) Mangifera
                                               95. Which of the following cross
    (D) Casurina
                                                   validation technique is best suited
93. For a certain Normal distribution,
                                                   for time series data ?
    the first moment about 10 is 40.
                                                   (A) K-fold cross validation
    What is the arithmetic mean ?
                                                   (B) Leave-one-out cross validation
    (A) 40
                                                   (C) Stratified shuffle split cross
    (B) 30
                                                       validation
    (C) 50
                                                   (D) Forward      chaining        cross
    (D) 20                                             validation

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96. The probability of rejecting the            98. The largest population that the
    null hypothesis when it is true, is             resources of a given environment
                                                    can support is :
    called :
                                                    (A) Population structure
    (A) Level of confidence
                                                    (B) Carrying capacity
    (B) Level of significance                       (C) Optimum population
    (C) Power of the test                           (D) Minimum population

    (D) All of the above                        99. In statistical hypothesis of equality
                                                    of means such as H0 :        = 10, if
97. The following are percentages of fat
                                                       = 5% :
    found in 5 samples of each of two
                                                    (A) 95% of the time we will make
    brands of food :                                    an incorrect inference
       A : 5.7, 4.5, 6.2, 6.3, 7.3                  (B) 5% of the time we will say that
                                                        there is no real difference when
       B : 6.3, 5.7, 5.9, 6.4, 5.1
                                                        there is no difference
    To test the hypothesis of equal                 (C) 5% of the time we will say that
    average fat content in the two types                there is a real difference when
    of food. Which of the following                     there is no difference
    procedures is appropriate ?                     (D) 95% of the time the null
                                                        hypothesis will be correct
    (A) Two sample t-test with 8
                                                100. The following system of equations
         degrees of freedom
                                                     has solution(s) :
    (B) Paired t-test with 4 degrees of                        x + y = 2
         freedom
                                                             6x + 6y = 12
    (C) Two sample t-test with 9                    (A) Infinite
         degrees of freedom                         (B) No
    (D) Paired t-test with 5 degrees of             (C) Two
         freedom                                    (D) Unique
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ROUGH WORK




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Source: Savitribai Phule Pune University. Question paper published by Savitribai Phule Pune University.