1. In a multiple regression model, the f-ratio is used to test the

(A)Variance of the data


(B)Standard error of mean


value


(D)Overall goodness of fit of the model.



2. If the mean of a sample is 20, the standard error of mean is 1 and the t-statistic for 95% level of confidence is 2.5, the population mean will be in the range

(A)17.5 to 22.5


to 25


to 25


to 20



3. The third moment about the mean of a distribution of a set of observations is a measure of

(A)Mode


(B)Skewness


(C)Kurtosis


(D)Variance



4. Consider an air shed over a city in the form of a rectangular box. The wind velocity is 5 m/sec normal to left face of the box. The length of the box along the direction of wind is 10 km and mixing height is 1 km. Assuming rapid mixing of the pollutants which are conservative in nature, the concentration of the pollutants in the city would reach 63% of its final value in

sec


sec


(C)10,000 sec


sec



5. Which one of the following states of mercury is volatile

Organic


(B)Ionic


(C)Atomic


(D)All of the above



6. Molar extinction coefficient of H2O2 at M-1240 nm is 0.04 cm-1. The concentration of H2O2 in a solution which has absorbance of 0.6 in a 3 cm curette will be

M


M


M


M



7. A reference solution is to be prepared with 5 PPM parabenzopyrene (molecular weight 252). The quantity of parabenzopyrene required for preparing one litre 5 PPM solution is

(A)252 mg


25.2 mg


5 mg


252 .g



8. Which one of the following is a peroxyl radical

OH0


R0


RO0


ROO0



9. Depending upon the amount of net primary productivity the various ecosystems can be arranged in a decreasing sequence of yield.

(A)Tropical seasonal forest Tropical rain forest Temperate Grassland Woodland and Shrubland.


(B)Tropical seasonal forest Tropical rain forest Woodland and Shrubland Temperate Grassland


(C)Tropical rain forest Temperate Grassland Woodland and Shrubland Tropical seasonal forest.


(D)Tropical rain forest Tropical seasonal forest Woodland and Shrubland Temperate Grassland.



10. Which of the following is a correct sequence of secondary seral vegetation development on any habitat

Ecesis Invasion Aggregation Stabilization


(B)Ecesis Aggregation Invasion Stabilization


(C)Aggregation Invasion Ecesis Stabilization


(D)Invasion Ecesis Aggregation Stabilization

11. What is common feature among the following Abies delavayi Aconitum diennorrhzum Adinandra griffthii Aglaia perviridis

(A)All have been extinct.


(B)All are gymnosperms.


(C)All are identified as endangered species.


(D)All are angiosperms.



12. Raunkiaer's normal biological spectrum for phanerogamic flora of the world exhibits one of the following sequence of occurrence of different life forms.

(A)Phanerophytes, Hemicryptophytes, Therophytes, Cryptophytes, Chaemophytes.


(B)Phanerophytes, Hemicryptophytes, Therophytes, Chaemophytes, Cryptophytes.


(C)Phanerophytes, Hemicryptophytes, Cryptophytes, Chaemophytes, Therophytes.


(D)Phanerophytes, Chaemophytes, Hemicryptophytes, Cryptophytes, Therophytes.



13. One of the following categories of earthworms is most suitable for wasteland reclamation.

(A)Epigeic


(B)Anecic


(C)Endogeic


(D)None of the above



14. How many mega-bio-diverse countries have been identified in the world














15. Which one of the following is an Ex-situ method of biodiversity conservation

Seed storage


(B)DNA Bank


(C)Tissue culture


(D)All the above



16. Which one of the following is a methyl isocyanate based pesticide

Sevin (Carbaryl)


(B)Temix (Aldicarb)


(C)Furadon (Carbofuran)


(D)All the above



17. The sequence of fossil fuels in the order of higher to lower heating value is as follows

Petroleum, Natural Gas, Hydrogen.


(B)Hydrogen, Natural Gas, Petroleum, Coal.


(C)Hydrogen, Coal, Natural Gas, Petroleum.


(D)Natural Gas, Petroleum, Coal, Hydrogen.



18. Natural ore of radioactive materials does not contain which one of the following isotope

(A)U235


Pu239


U238


Th232


19. The process of splitting bigger hydro­carbon into smaller hydrocarbon molecules is called

(A)Pyrolysis


(B)Thermal decomposition


(C)Cracking


(D)Combustion



20. Which one of the following is a complex in organic fertilizer

Urea


(B)Super phosphate


(C)Potash


(D)NPK



21. The sequence of ease of decomposition of organic compounds in soil is

(A)Lignin Hemicellulose Starch Crude protein Fat


(B)Crude protein Starch Fat Lignin Hemicellulose


(C)Starch Crude protein Hemicellulose Fat Lignin


(D)Fat Starch Lignin Hemicellulose Crude protein



22. Which one of the following radio­nuclides has the lowest half life period

C14

(B)Sr90

I131

Cs137


23. Match the rules mentioned in Column I with year of enforcement mentioned in Column II.

Column I Column II

a.Hazardous Wastes (Management and Handling) Rules 1. 2000

b. Biomedical Solid Wastes (Management and Handling) Rules. 2. 1978

c. Municipal Solid Wastes (Management and Handling) Rules 3. 1989

d.The Water (Prevention and Control of Pollution) Cess Rules 4. 1998


Choose the correct code

Codes
a b c d

4 1 2


1 2 3


4 3 1


3 4 2



24. Average composition of biodegradable waste in Municipal Solid Waste of India is

35%


45%


65%


70%



25. The treatment method recommended for the human anatomical waste generated from hospitals is

(A)Chemical disinfection


(B)Autoclaving


Incineration


(D)All the above



26. Match the waste class mentioned in Column I with Color Code of the Collection Container mentioned in Column II.

Column I Column II

a.Human 1. Blue Anatomical Waste

b.Waste Scrap 2. Green

c.Discarded glass 3. Red ware

d.Disposable plastics 4. White

Choose the correct code

Codes
a b c d

3 1 4


2 3 1


2 3 4


1 4 2



27. Which of the following is true when frequency of occurrence of risk is remote but possible

(A)Risk is acceptable.


(B)Risk reduction measures should be implemented.


(C)Risk is unacceptable.


(D)Both and are true.



28. Given below are two statements, one labelled as Assertion and the other labelled as Reason

Assertion Indirect impacts are more difficult to measure, but can ultimately be more important.

Reason In areas where wildlife is plentiful, such as Africa, new roads often lead to the rapid depletion of animals.

Choose the correct answer.

Codes

(A)Both and are true and is the correct explanation.


(B)Both and are true, but is not the correct explanation.


is true, but is false.


is false, but is true.



29. An earthquake measuring over 8 on Richter Scale is rated as

Destructive


(B)Major


(C)Great


(D)Damaging



30. Given below are two statements, one labelled as Assertion and the other labelled as Reason

Assertion It is difficult to judge how changes in localized gas samples represent more general conditions in the Volcano.

Reason The composition of the juvenile gases emitted from volcanic vents offen show considerable variation over short periods and distances.

Choose the correct answer.

Codes

(A)Both and are true and is the correct explanation of


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


is true, but is false.


is false, but is true.



31. In a false color set, human visual perception is limited to how many independent coordinates

Three


(B)Four


(C)One


(D)Five



32. If D Detector Dimension, F Focal Length, H Flying Height, then Ground Resolution Element is equal to

H












33. Darkest level of the associated color would have brightness value equal to




(B)256


(C)255


(D)2047



34. The efficiency of a MHD power . generator for applied electric field . magnetic field B and velocity of hot . ionized gas U is







2


2 2

35. Match the List I with List II and choose the correct answer from the codes given below

List I List II
(Constituents (Sources) of Particulate matter)

a.Si 1. Natural Resources

b.PAH 2. Incomplete combustion of fossil fuels.

c. SO2 4 3. Elements largely introduced by Human Activities.

d. Pb 4. Reactions of a gas in atmosphere.

Choose the correct code

Codes
a b c d

2 4 3


3 4 1


4 1 3


4 2 1



36. For aerosol particles having sizes 1 .m, the terminal settling velocity of an
aerosol particle varies with its diameter(D) as


to D


to D2


VT to D3


VT to D3/2


37. Scale lengths associated with synoptic scale phenomenon in atmosphere are typically in the range

100 km


(B)200 40,000 km


(C)10,000 100,000 km


10 km



38. Assume that the atmosphere is isothermal at 25 .C and the estimated maximum daily surface temperature is 35 .C, the mixing height is (take adiabatic lapse rate to be 1 .C per 100

3.5 km


2.5 km


1.5 km


1 km



39. The wavelengths of UV-A radiations are in the range

(A)200 240 nm


(B)240 280 nm


(C)280 320 nm


(D)320 400 nm



40. Two sounds of 80 dB and 85 dB superimpose at a location. What is the resultant sound at that location

82 dB


87 dB


91 dB


165 dB



41. The coefficient of performance of a wind turbine for maximum power output is














42. Which of the following does not have a direct role in climate change

(A)Sulphate and nitrate aerosols


(B)Black carbon aerosols


(C)Surface ozone


(D)Nitric oxide



43. Which method is used to separate molecules on the basis of their sizes

(A)Ion exchange chromatography


(B)Molecular exclusion chromatography



(C)Adsorption chromatography


(D)Thin layer chromatography



44. Which type of support media is used in different types of electrophoresis

(A)Agarose gel


(B)Polyacrylamide gel


(C)Sodium dedecyl sulphate polyacrylamide gel


(D)All the above



45. Which of the following categories of plants get benefitted more due to elevation of CO2 level

plants


plants


(C)CAM plants


(D)All of the above



46. Aquifers that extend continuously from the land surface through material of high permeability are

(A)Aquitards


(B)Auicludes


(C)Confined aquifers


(D)Unconfined aquifers



47. Which one of the following is used to determine ambient concentration of suspended particulate matter

Cascade impactor


(B)Kjeldahl's Flask


(C)Sacchi Disk


Folin-Wu method



48. Which of the following laws states that the solubility of a gas in a liquid is proportional to the partial pressure of that gas in contact with liquid

Hick's law


(B)Henry's law


(C)Hardy-Weinburg law of equilibrium


2nd Law of Newton



49. Maximum CaO is found in

Bauxite


(B)Limonite


(C)Lime Stone


(D)Siderite



50. The sequence of chemical constituents in order of their abundance in a majority of sedimentary rocks is

(A)SiO2 TiO2 Al2O3 Fe2O3


(B)SiO2 Al2O3 Fe2O3 TiO2


SiO2 Fe2O3 Al2O3> TiO2


SiO2 Fe2O3 TiO2> Al2O3



51. The primary producers in the marine ecosystem are

(A)Eubacteria and Algae


(B)Cyanobacteria and Algae


(C)Algae and Protozoans


(D)All of the above



52. Mycorrhizae can be used as biofertilizers because they

(A)fix nitrogen


(B)fix CO2


solubilise phosphate


(D)kill pathogens



53. Given below are two statements, one labelled as Assertion and the other labelled as Reason

Assertion Some plants with my corrhizal fungi are able to occupy habitats that otherwise could not inhabit.

Reason The importance of my corrhizal plant interaction is attested by the fact that 95% of all plants have my corrhizae.

Choose the correct answer

Codes

(A)Both and are true and is the correct explanation of


(B)Both and are true but is not the correct explanation of


is true, but is false.


is false, but is true.



54. An interactive association between two populations in which one population benefits from the association, while the other is not affected, is

(A)Mutualism


Neutralism


Commensalism


Symbiosis



55. The method for downstreaming of ethanol from fermentation broth is

(A)Filtration


(B)Flow cytometry


(C)Distillation


(D)Flame Photometry



56. The country which uses maximum nuclear power is

(A)U.S.A.


(B)Japan


(C)France


(D)Germany



57. Which bacteria removes copper from low grade copper ore

Thiobacillus sp


(B)Bacillus thuringiensis


Rhizobium sp


(D)All of the above



58. Which of the following is not a part of Geographic Information System

(A)Projection


(B)Overlay


(C)Reclassification


(D)Measuring distance and connectivity



59. Ultrafiltration can remove

(A)Suspended solids


(B)Bacteria


(C)Protozoa


(D)All the above



60. A good automobile fuel, in addition to having high calorific value, should have

(A)High ignition temperature


(B)High viscosity


(C)Low ignition temperature


(D)Moderate ignition temperature



61. Reserve food material in algae is

(A)Starch


(B)Cellulose


(C)Protein


(D)None of the above



62. The biodegradability of xenobiotics can be characterized by

(A)Rate of CO2 formation


(B)Rate of O2 consumption


(C)Ratio of BOD to COD


(D)All of the above



63. The soil borne plant pathogens could be controlled by

(A)Lowering pH


(B)Increasing pH


Adding lime


(D)All of the above



64. A selective Lignin degrading fungus belongs to

(A)Soft rot


(B)Brown rot


(C)White rot


(D)Red rot



65. The drastic reduction in the number of intestinal pathogens during activated sludge process is the overall result of

(A)Competition


(B)Competition and adsorption


(C)Predation, competition and adsorption


(D)Competition, adsorption, predation and settling



66. Which of the following disinfection method does not result in synthesis of organochlorine

Chlorination


Chloroamination


(C)Ozonation


(D)None of the above



67. An organism's niche is

(A)the way the organism uses the range of physical and biological conditions in which it lives.


(B)all the biological and physical factors in the organism's environment.


(C)the function role played by the organism where it lives.


(D)the range of temperature that the organism needs to live.



68. The pyramid of biomass is invented in

(A)Forest ecosystem


Greenland ecosystem


Aquatic ecosystem


(D)All of the above



69. Which of the following chemicals of anthropogenic origin mimics the effect of estrogen in animals

Alkyl phenol


(B)Polychlorinated biphenyl


p. DDT


(D)All the above



70. "Black Foot" disease in human beings caused due to use of water contaminated with

(A)Mercury


(B)Cadmium


Silver


(D)Arsenic



71. Largest amount of fresh water is present in

(A)Lakes


(B)Rivers


(C)Glaciers


(D)Polar Ice



72. A threatened species is

(A)only endangered species


(B)only vulnerable species


(C)only rare species


(D)all of the above



73. Given below are two statements, one labelled as Assertion and the other labelled as Reason

Assertion Animals adopt various strategies to survive in hostile environment.

Reason Praying mantis is green in color which emerges with plant foliage.

Choose the correct code

Codes

(A)Both and are true, with being the correct explanation of


(B)Both and are true but is not correct explanation of


is true, but is false.


(D)Both and are false.



74. Given below are two statements, one labelled as Assertion and the other labelled as Reason

Assertion Increasing temperature in the environment influences gonadal growth in fish.

Reason Increase in day length causes increase in environmental temperature in summer.

Choose the correct code

Codes

(A)Both and are true, and is the correct explanation of


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


is true, and is wrong.


and are wrong.



75. Match Column I with Column II

Column I Column II

a. The Rio Summit 1. 1997

b.Johannesburg Earth Summit 2. 1972

c.Kyoto Protocol 3. 1992

d.The Stockholm Conference 4. 2002


Codes
a b c d

4 1 2


2 3 4


3 2 1


1 4 3