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MH SET 2021: 26 September, Paper II, Environmental Sciences

  • Date: 26 September 2021
  • Paper code: SEP31221
  • 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.

SEP - 31221                                                                                                (To be filled by the Candidate)
Time Allowed : 2 Hours]                                                                                [Maximum Marks : 200
Number of Pages in this Booklet : 20                                                    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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SEP - 31221/II—A




2
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SEP - 31221/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.   Winds in the boundary layer (upto          3.   Atmosphere is a mechanical mixture
     about 1000 m from ground upwards)
                                                     of several gases and principal
     are controlled by :
                                                     components are Nitrogen, Oxygen
     (A) Pressure gradient force and
         Coriolis force                              and Argon. The remain gases which

     (B) Pressure gradient force and                 amount to ................. of the total mass
         frictional force                            are called minor gases.
     (C) Pressure gradient force,
                                                     (A) 10%
         frictional force, Coriolis force
         and centripetal force                       (B) 15%
     (D) Pressure gradient force and
                                                     (C) 5%
         centripetal force
2.   In areas away from tropics (high                (D) Less than 1%
     Coriolis force) geotrophic wind is a
                                                4.   A body which is radiating energy
     steady wind which is a balanced
     motion where :                                  such as the sun has a wavelength

     (A) Pressure gradient force is                  where it has maximum energy
         balanced by Coriolis force                  emission ( m) that is given by, where
     (B) Pressure gradient force is                  T is temperature, P is pressure :
         balanced by centripetal force
                                                     (A)    mT = Constant
     (C) Coriolis force is balanced by
         centripetal force                           (B)    m/P = Constant
     (D) Coriolis force and centripetal              (C)    m/T = Constant
         force are balanced by pressure
         gradient force                              (D)    mP = Constant

                                            3                                            [P.T.O.
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5.   Equinoxes are the periods when :                   8.   A parcel of air initially at 4000 m

     (A) The sun is directly overhead at                     descends dry adiabatically to 1000 m

           23½º S                                            height. If the initial temperature
                                                             was 280 K, what will be its
     (B) The sun is directly overhead at
                                                             temperature at 1000 m ? (Given
           23½º N
                                                             DALR = 9.8º/km).
     (C) The earth is nearest to the sun                     (A) 290 K
     (D) The sun shines equally on                           (B) 309.4
           both Northern and Southern
                                                             (C) 200.6
           hemisphere
                                                             (D) 256.4
6.   The mean molecular weight of AIR
     is nearly 28.9. It remains constant                9.   Thunderstorms are quite common in
                                                             India during premonsoon season
     upto a height of ....................... and
                                                             (March-May).              They are    most
     then ..................... .
                                                             frequently reported from areas
     (A) 80 km, increases
                                                             in .................. .
     (B) 60 km, increases                                    (A) NE India and Bengal
     (C) 80 km, decreases                                    (B) Central India
     (D) 50 km, increases                                    (C) Rajasthan and Gujarat
7.   Thunderstorms are generally                             (D) Punjab and Haryana
     characterised by :
                                                        10. Tropical           cyclones     are   called
     (A) Thunder,              lightning   and               hurricanes in .................. regions and
           showery precipitation                             are considered as very destructive
     (B) Light drizzle type precipitation                    weather system.

     (C) Light drizzle without thunder                       (A) South Indian Ocean
           and lightning                                     (B) NE Pacific Ocean

     (D) No precipitation but thunder                        (C) N. W. Pacific Ocean
           and lightning                                     (D) North Atlantic Ocean
                                                    4
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11. First law of Thermodynamics for an         14. Ozone-hole in the atmosphere is
                                                   largely caused by the presence of :
    adiabatic process is given by the
                                                   (A) Oxygen
    equation :
                                                   (B) Hydrogen
    (A) CvdT = –pd
                                                   (C) Chloro-fluoro-carbon
    (B) CpdT = –pd
                                                   (D) Radioactive-waste
    (C) CvdT = – dp                            15. Which instrument is used to
                                                   measure the relative humidity of the
    (D) dq = dE + vdp
                                                   air ?
12. Formation of O('D) atom in the
                                                   (A) Hydrometer
    O3   hv      O2   O(' D) reaction is
                                                   (B) Hygrometer
    due to :
                                                   (C) Barograph
    (A) Collision                                  (D) Barometer

    (B) Photolysis                             16. The major gases responsible for acid
                                                   rain are :
    (C) Termolecular reaction
                                                   (A) O3 and NO2
    (D) Nuclear fusion
                                                   (B) CO2 and CO
13. What range of electromagnetic                  (C) SO3 and CO
    radiation are most abundantly                  (D) SO2 and NO2
    emitted by the Earth surface ?             17. Which of the following is not benefit
                                                   of vegetation in a watershed ?
    (A) Microwave
                                                   (A) Increases soil compaction
    (B) Radio wave
                                                   (B) Slows runoff
    (C) Ultraviolet
                                                   (C) Reduces raindrop splash
    (D) Infrared                                   (D) Reduces sediment runoff

                                           5                                     [P.T.O.
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18. Formation of ozone is maximum                 22. Earth Summit at Rio de Janeiro in
      over :                                          1992 released a blueprint for
      (A) Africa                                      Environment and Development is
                                                      known as :
      (B) America
                                                      (A) Conference of Parties
      (C) Antarctica
                                                      (B) Clean Development Mechanism
      (D) China
19. Which one of the following has a                  (C) Agenda 21

      shortest lifetime in the atmosphere ?           (D) Kyoto Protocol
      (A) NH3                                     23. Number of minerals in Mohs scale
      (B) O3                                          of hardness is :

      (C) CO                                          (A) 8

      (D) OH                                          (B) 10

20. Lightning in the atmosphere                       (C) 12
      produces :                                      (D) 15
      (A) CO                                      24. Denitrification is a process of :
      (B) NO                                          (A) Hydration
      (C) CO 2
                                                      (B) Carbonation
      (D) NH3
                                                      (C) Oxidation
21.   An element 94A238 forms another
                                                      (D) Reduction
      element B after one -particle. The
      atomic number and the atomic mass           25. Which one of the following is a
      of the element B will be :                      Ramsar site ?

      (A) 92 and 236 respectively                     (A) Koyana reservoir

      (B) 95 and 238 respectively                     (B) Ujani dam

      (C) 92 and 234 respectively                     (C) Chilka lake

      (D) 93 and 234 respectively                     (D) Jayakwadi

                                              6
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26. According to Beer’s law, the intensity       29. Five days BOD is taken at a

     of transmitted light is decreased in            temperature of :

     proportion of :                                 (A) 0ºC

     (A) Distance                                    (B) 5ºC

     (B) Concentration                               (C) 15ºC

                                                     (D) 20ºC
     (C) Volume
                                                 30. Chlorination of water is done to
     (D) Time
                                                     remove :
27. The role of suppresser in ion
                                                     (A) Hardness
     chromatography is to :
                                                     (B) Bacteria
     (A) Maintain the pH of eluent
                                                     (C) Sediments
     (B) Reduce         the     baseline
                                                     (D) Suspended solids
         conductivity
                                                 31. Molar mass of a compound is the :
     (C) Increase the concentration of
                                                     (A) Mass in 1 lit solvent
         eluent
                                                     (B) Mass in 1 mol of a substance
     (D) Control the interference of
                                                     (C) Mass in 1 ml of solvent
         metals
                                                     (D) Mass in 1 g of a compound
28. Density of water is maximum at :
                                                 32. 63 g/mol HNO3 contains :
     (A) 10ºC
                                                     (A) 6.022 × 1023 HNO3 molecules
     (B) 5ºC
                                                     (B) 1000 molecules of HNO3
     (C) 4ºC
                                                     (C) 1 molecule of HNO3
     (D) 0ºC                                         (D) 100 HNO3 molecules

                                             7                                    [P.T.O.
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33. Which one of the following will not         37. An example of a lentic ecosystem
    react with water to produce H2 gas
                                                    is :
    even at red hot conditions ?
                                                    (A) River
    (A) Li

    (B) Be                                          (B) Stream

    (C) Ca                                          (C) Flowing water

    (D) Mg                                          (D) Lake
34. One molecule of pentane has :
                                                38. The various sources of pollutants
    (A) 17 hydrogen atoms                           cause a body of water becomes rich
    (B) 12 hydrogen atoms                           with nutrients. This process is
    (C) 5 hydrogen atoms                            known as :
    (D) 9 hydrogen atoms
                                                    (A) Trophic level
35. How many electrons are in Ba++ ?
                                                    (B) Oligotrophic
    (A) 46
                                                    (C) Entropic
    (B) 54

    (C) 56                                          (D) Entropy

    (D) 62                                      39. Which one of the following units of

36. In an aquatic ecosystem level of D.O.           sewage treatment plant is used for
    from top to bottom shows :                      removal of dissolved substances ?
    (A) Same D.O. level at all the depth            (A) Activated sludge
    (B) Less on the top and more at
                                                    (B) Secondary clarifier
         bottom
                                                    (C) Grit chamber
    (C) An increase from top to bottom

    (D) A decrease from top to bottom               (D) Sludge digestion

                                            8
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40. Role of eukaryotic and prokaryotic         43. The species of plants and animals

    organisms is been utilized in the              which are geographically restricted
    oxidation pond method for treatment            in distribution are known as :
    of clarified sewage. These organisms
                                                   (A) Rare
    are :
                                                   (B) Extinct
    (A) Bacteria and Algae
                                                   (C) Endangered
    (B) Algae and Mushrooms
                                                   (D) Endemics
    (C) Mushroom and Lichens
                                               44. BOD value of sewage indicates :
    (D) Lichens and Mosses
                                                   (A) Microbial load of sewage
41. Which one of the following nutrients

    cycle have biological fixation ?               (B) Low oxygen content of sewage

    (A) Phosphate                                  (C) High organic matter content of

                                                       sewage
    (B) Oxygen

    (C) Carbon dioxide                             (D) Presence of oxygen dependent

                                                       microorganisms in sewage
    (D) Nitrogen
                                               45. MPN test is carried out for :
42. Shanon index measures :
                                                   (A) Drinking water
    (A) Species richness

    (B) Relative abundance                         (B) Waste water

    (C) Frequency                                  (C) Milk or milk products

    (D) Relative frequency                         (D) Air

                                           9                                   [P.T.O.
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46. Eisenia fetida, lumbricus rubellus,          50. Which one of the following helps
    Eudrilus eugeniae are important                  to identify the objects on aerial
    in :
                                                     photographs of the earth surface ?
    (A) Nitrogen fixation
                                                     (A) Atmospheric window
    (B) Vermicomposting
                                                     (B) Signature
    (C) Phosphate solubilization
    (D) Insect-biocontrol                            (C) Radiometric error

47. GRIHA is a rating tool for which of              (D) Atmospheric absorption bands
    the following fields ?
                                                 51. Which wavelength can be most
    (A) Airlines
                                                     useful for remote sensing from
    (B) Buildings
                                                     satellite in cloud covered conditions ?
    (C) Industries
                                                     (A) 0.4 µm
    (D) Automobiles
                                                     (B) 0.4 nm
48. Which aquatic fern is used to
    increase the yield of paddy crops ?              (C) 1.4 µm

    (A) Marselia                                     (D) 4 cm
    (B) Salvinia
                                                 52. Magnitude of the earthquake in
    (C) Azolla                                       .................. scale is a measure of the
    (D) Ariadnaesporites                             energy released at the source of
49. Which of the following is an airborne            earthquake.
    bacterial disease ?
                                                     (A) Richter
    (A) Pertussis
                                                     (B) Mercalli
    (B) Influenza
    (C) Polio                                        (C) Moh’s

    (D) Chickenpox                                   (D) Levis

                                            10
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53. What is the mandatory notice period           56. Ramsar Convention is aimed at
    for public hearing ?
                                                      saving :
    (A) 15 days
                                                      (A) Wetlands
    (B) 1 month
                                                      (B) Endangered animals
    (C) 2 months

    (D) 1 week                                        (C) Wild habitat

54. The purpose of screening step in EIA              (D) All of the above
    is :
                                                  57. The State Government can declare
    (A) To assess the quality of project
                                                      a sanctuary under which section of
           design
                                                      the Wild Life (Protection) Act, 1972 ?
    (B) To determine whether a full
           EIA is needed                              (A) Section 18(1)
    (C) To consult the stakeholders
                                                      (B) Section 17(A)
    (D) To study the baseline
                                                      (C) Section 12
55. In EIA, the multiattribute theory is
    used to describe :                                (D) Section 35(1)

    (A) The identification of alternatives        58. In which form are annual returns
           to be evaluated and structuring
                                                      for hazardous waste submitted to
           of environmental parameters
                                                      SPCB annually ?
    (B) Existing environmental quality
           of study area                              (A) Form 4

    (C) Socio-economic status of the                  (B) Form 5
           area
                                                      (C) Form 10
    (D) Risk involved in a development
           project                                    (D) Form 6

                                             11                                     [P.T.O.
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59. An environmental audit helps in            62. In microwave remote sensing,
                                                   significant wave heights (SWH) over
    achieving :
                                                   ocean surface can be determined
    (A) Waste minimization                         by :
                                                   (A) Radar Altimeter
    (B) Resource optimization
                                                   (B) Synthetic Aperture Radar
    (C) Compliance to environmental
                                                   (C) Shuttle Imaging Radar
        laws
                                                   (D) Thematic Mapper
    (D) All of the above                       63. Which of the following sequence is
                                                   correct for the energy flow in the
60. Which of the following is a waste
                                                   ecosystem ?
    generated in the pulp and paper
                                                   (A) Consumers      Decomposers
    industry ?                                         Producers

    (A) Black liquor                               (B) Producers      Consumers
                                                       Decomposers
    (B) Spentwash
                                                   (C) Producers      Decomposers
    (C) Filter cake                                    Consumers
                                                   (D) Decomposers       Consumers
    (D) All of the above
                                                       Producers
61. Select the suspended growth process        64. Which method of rainwater
    of biological treatment from the               harvesting can be adopted by
                                                   individual house owner ?
    following :
                                                   (A) Creation of new water body
    (A) Activated sludge process
                                                   (B) Roof top rainwater harvesting
    (B) Trickling filter                           (C) Construction      of   recharge
                                                       trenches
    (C) Rotating biological contactor
                                                   (D) Construction of large storage
    (D) Anaerobic filter                               tanks

                                          12
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65. Which of the following are the                    67. The colour of Red soil is due to
    correct criteria which meet to                        presence of :

    prescribe Eco-logo ?                                  (A) Magnesium
                                                          (B) Iron
    (i)   Product      must     cause     less
          pollution in comparison to other                (C) Copper

          products.                                       (D) Aluminium
                                                      68. Which one of the following soils has
    (ii) It   should         contribute     to
                                                          the highest porosity ?
          environmental health disorder.
                                                          (A) Silty soil
    (iii) It should be recycled.
                                                          (B) Sand soil
    (iv) It should contribute to save non-                (C) Clay soil
          renewable resources.
                                                          (D) Loam soil
    (A) (ii) (iii) (iv)                               69. Tropical Savanna biomes include :
    (B) (i)   (ii)    (iv)                                (A) Climax vegetation consisting
                                                              trees and herbs
    (C) (i)   (iii) (iv)
                                                          (B) Succulent life forms of plants
    (D) (i)   (iii) (ii)
                                                          (C) Tall grasses and short grasses
66. The process in which the micro-                           as dominant species
    organisms         produce    metabolic                (D) Grasslands with scattered trees
    products in soil which inhibit growth             70. Which of the following is not ethical
    or cause killing of other micro-                      principle of conservation biology ?
    organisms is known as :                               (A) The diversity of organism is
                                                              good
    (A) Antibiotics
                                                          (B) The ultimately extinction of
    (B) Antibiosis
                                                              species is bad
    (C) Antibodies                                        (C) Ecological complexity is bad
    (D) Antigen                                           (D) Evolution is good

                                                 13                                     [P.T.O.
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71. Match the following :                       73. Which of the following is not correct
    (a)  Autecology                                 for a major project ?
    (b)  Synecology
                                                    (A) Substantial capital investment
    (c)  Biome ecology
    (d)  Ecosystem ecology                          (B) Cover large area
    (1)  To study of interactions and               (C) Wide range impacts
         interrelationships of more than
         one biological community with              (D) Employ less numbers
         environment
                                                74. Match the pairs :
    (2) To study complex interrelation-
         ships of groups of organism and                       EIA Steps
         environment
    (3) To study relationship of                    (a) Environmental inventory
         individual species to its                  (b) Screening
         environment
    (4) To study interaction and inter-             (c) Scoping
         relationships of all organisms
                                                    (d) Environmental setting
         amongst themselves and
         environment                                           Objective
         (a) (b) (c) (d)
                                                    (1) Need of EIA
    (A) (4) (3) (2) (1)
    (B) (3) (2) (1) (4)                             (2) Defining content of EIA
    (C) (1) (2) (3) (4)
                                                    (3) Description            of   affected
    (D) (3) (1) (2) (4)
                                                         environment
72. Genetic diversity in biodiversity
    is :                                            (4) Description of environment as
    (A) Sum of total chromosomes in an                   it exists
         individual
    (B) Sum of total chromosomes in                      (a)   (b)   (c)     (d)
         the individual species
                                                    (A) (2)    (3)   (4)     (1)
    (C) Sum of total genes in an
         individual                                 (B) (3)    (4)   (1)     (2)
    (D) Sum of total genetic information            (C) (1)    (2)   (3)     (4)
         in genes of individuals of a
         species                                    (D) (4)    (1)   (2)     (3)

                                           14
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75. Which of the following are the high        77. Primarily which gas is produced in
    energy neutral particles ?                     the       open           dumps   from   the

    (A)    -particles                              decomposition of biodegradable

    (B)    -particles                              waste ?

    (C)    -particles                              (A) Ethane

    (D) Neutrons                                   (B) Methane

76. Match the following :                          (C) Propane

  Group of Corrosive Substance                     (D) Ethene

    (a) Strong acids                           78. What is the range of methane (CH4)

    (b) Strong alkali                              percentage in the biogas ?

    (c) Strong oxidants                            (A) 30—60

    (d) Strong dehydrating agents                  (B) 40—70

                 Example                           (C) 1—5
    (1) Bromine trifluoride                        (D) 20—30
    (2) Oxygen difluoride                      79. The permanent hearing loss in
    (3) Sulphuric acid                             human being under the impact

    (4) Potassium hydroxide                        of noise is due to disfunctioning

          (a)   (b)   (c)     (d)                  of ................. .

    (A) (3)     (4)     (2)   (1)                  (A) Tympanic membrane

    (B) (1)     (2)     (3)   (4)                  (B) Semicircular canals

    (C) (2)     (3)     (1)   (4)                  (C) Sensory cells

    (D) (2)     (1)     (4)   (3)                  (D) Malleus, incus and stapes

                                          15                                           [P.T.O.
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80. What is the resultant noise of 8           82. Which of the following is correct for
                                                   the wavelength of sound wave ?
    equal sound levels of 40 dB(A)
                                                   (A) Number of cycles per second
    emitted at the workplace of an
                                                   (B) Distance travelled by sound
    industry ?
                                                        wave per second
    (A) 43 dB(A)                                   (C) Distance travelled by sound per
                                                        cycle
    (B) 46 dB(A)
                                                   (D) Distance travelled by sound
    (C) 49 dB(A)                                        wave in two cycles
                                               83. Seasonal variation means the
    (D) 52 dB(A)
                                                   variation occurring within :
81. Which of the following is a correct            (A) A number of years
    statement ?                                    (B) Parts of a year

    (A) Measurement of sound is a                  (C) Parts of a month

        function of electroacoustic                (D) All of the above

        method                                 84. A ground level accidental release of
                                                   0.5 g/s occurs at a 4 m height in
    (B) Measurement of sound is a                  terrain with a roughness length of
        function of electrochemical                Z0 = 0.01 m. Assuming a wind speed
                                                   of 1 m/s, what is the maximum
        method
                                                   ground level concentration 4 km
    (C) Measurement of sound is a                  downwind estimated from the
                                                   Gaussian plume equation ?
        function of biophysical method
                                                   (A) 0.56 µg/m3
    (D) Measurement of sound is a
                                                   (B) 0.66 µg/m3
        function of electrophysical                (C) 56 µg/m3
        method                                     (D) 66 µg/m3
                                          16
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85. The P-value in hypothesis testing             87. For the following set of consistent
    represents which of the following :               equations what is the value of
    (A) The probability of failing to                 constant K ?
        reject the null hypothesis, given                       x – y + z = 1
        the observed results
                                                              2x + 2y – z = 2
    (B) The probability that the null
                                                              3x – y + 2z = 3
        hypothesis is true, given the
        observed results                                       4x + y + z = K

    (C) The    probability    that    the             (A) 12
        observed results are statistically            (B) 8
        significant, given that the null
                                                      (C) 6
        hypothesis is true
                                                      (D) 4
    (D) The probability of observing
        results as extreme or more                88. Which of the following distribution

        extreme      than     currently               has, mean = variance ?

        observed, given that the null                 (A) Binomial
        hypothesis is true
                                                      (B) Poisson
86. In a year there are 900 births in a
                                                      (C) Normal
    town a of which 51.5% were males,
                                                      (D) Chi-square
    while in town a and b combined, this
    proportion in a total of 1350 births          89. When the correlation coefficient
    was 0.50. What is the proportion of               r = 0, then the two regression lines
    male births in the town b ?                       are :
    (A) 0.47                                          (A) Perpendicular to each other
    (B) 0.49                                          (B) Parallel to each other
    (C) 0.50                                          (C) Coincide
    (D) 0.51                                          (D) Do not exist

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90. A man travelling 900 km by train               92. A random variable x has the
                                                       following probability function :
    at an average speed of 60 km per

    hour and 3000 km by boat at an                     Values of x    : 0   1   2   3     4

    average speed of 25 km/hr. What is                 P(x)          : 0    k   2k 2k 3k

    the average speed of a man for the                 What is the value of k ?

    entire distance ?                                  (A) 0.100

                                                       (B) 0.125
    (A) 24.88 km per hour
                                                       (C) 0.166
    (B) 30.88 km per hour
                                                       (D) 0.150
    (C) 26.88 km per hour
                                                   93. What is the maximum limit for
    (D) 28.88 km per hour                              oil and grease content of treated

91. The mean of the distribution in                    effluent ?

    which the value of x are 1, 2 ...... n.            (A) 1 mg/L

    The frequency of each being unity                  (B) 5 mg/L

    is :                                               (C) 20 mg/L

           n                                           (D) 10 mg/L
    (A)
           2                                       94. A body of water enclosed between
           n(n 1)                                      river mouth and sea salt water is :
    (B)
              2
                                                       (A) Estuary
           (n 1)
    (C)                                                (B) Coast
             2

           (n 1)                                       (C) River bank
    (D)
             2                                         (D) Lakes

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95. Which of the following is not                98. The sun releases energy by :
    used for removal of particulate                  (A) Nuclear fission
    pollutants ?                                     (B) Nuclear fusion
    (A) Electrostatic precipitator                   (C) Spontaneous combustion
    (B) Bag filter                                   (D) Hydrothermal process

    (C) Incinerator                              99. Maximum mass of the atmosphere
                                                     exists in the :
    (D) Cyclone
                                                     (A) Troposphere
96. Agenda 21 is related to :
                                                     (B) Stratosphere
    (A) Climate change issue
                                                     (C) Mesosphere
    (B) Sustainable development issue
                                                     (D) Thermosphere
    (C) Acid rain issue
                                                 100. Article   51(A)    of    the   Indian
    (D) Global warming issue                         Constitution states that :
97. Environmental Pollution Control                  (A) The state has to ensure as its
    Authority      (EPCA)    has     been                primary        duty    to    bring
    mandated to control air pollution in                 improvement in public health
    NCR-Delhi through :                              (B) The state has to protect and

    (A) National       Air   Pollution                   improve the environment

        Monitoring Programme                         (C) The state has to ensure as its
                                                         primary duty to raise the
    (B) Zonal Action Plan
                                                         standard of living
    (C) Graded Response Action Plan
                                                     (D) The citizens are required to
    (D) Environmental        Pollution                   protect and improve the natural
        Control Plan                                     environment

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ROUGH WORK




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