1. PIXEL is used in evaluation of satellite imageries. It refers to

Photo ionic radiation

Photo induced x-rays emitted light

Printed in x-radiation region

An image of 100 km ×100 km region

2. Geostationary satellites orbit above the earth at about

10 km above the earth

500 km above the earth

1500 km above the earth

5 km above the earth

3. Environmental assessment of a developmental projects follow the following sequence to achieve
sustainable development.

EA EIA

EA->EMP

EA->EIA

EIA->EMP->EA

4. Dolomite is

an isomorphic substitution between CaCO3 MgCO3'

a fixed composition of Ca0.52 Mg0.48 CO3

a polygraph of limestone

an isomorph of calcite

5. In order of increasing cation exchange capacity

Illite Kaolinite Sericite >Gibbsite

Kaolinite Gibbsite Sericite> Illite

Kaolinite Illite Montmorillonite

Montmorillonite Kaolinite Illite

6. In order of increasing energy content

Lignite, Peat, Anthracite,Bituminous coal

Peat, Lignite, Anthracite,Bituminous coal

Anthracite, Lignite,Bituminous coal, Peat

Bituminous coal, Anthracite,Lignite, Peat

7. Agenda 21 is blue-print for environment development. Agenda 21 was an outcome of the meeting at

Rio de Janeiro

Stockholm

Vienna

Washington

8. BOD of the effluents discharged on land for irrigation should not exceed

30 mg/l

100 mg/l

300 mg/l

60 mg/l

9. Atmospheric radioactive window permits thermal radiation of which wavelength to leave the earth

4.3 to 9.3 µm

9.5 to 10.6 µm

7 to 12 µm

7.3 to 10.3 µm

10. Three constituents that contribute towards stratospheric ozone depletion

CFC-12, N2O

CFC-16, NO2

CFC-12, O2

CFC-13, H2



11. In an ecological succession there is a progressive change in biological community over time space

(A)Old species are replaced by new one.

(B)Old species evolved into new species.

(C)New species moves in displacing previous one.

(D)Each stage there is a modification in the environment to adopt new species.



12. In nitrogen cycle elemental nitrogen returned to the atmosphere by the following process.

(A)Nitrogen fixing bacteria.

(B)Nitrogen fixation by blue-green algae.

(C)Nitrification process.

(D)Denitrification process.



13. Fe Mg silicates from ideal solid solution in

(A)Pyroxene

Feldspar

(C)Olivine

Mica



14. One of the following represent plygioclases

(A)NaAl2Si2O6

(B)KAlSi-O8

(C)Mg2Al2Si2O6

KAlSiO



15. Government of India has enacted various Acts for protection conservation of environment. However, more inclusive Act is

(A)Water (Prevention Control of Pollution) Act

(B)Air (Prevention Control of Pollution) Act

(C)Forest Act

(D)Environment (Protection) Act



16. CRZ notification of Government of India specify the stretches of sea, bays, estuaries etc. as coastal areas requires protection from developmental activities.

(A)upto 500 metre from High Tide Level

(B)upto 150 metre from High Tide Level

(C)upto 500 metre from Low Tide Level

(D)upto 100 metre from Low Tide Level



17. An objective of environmental audit is

(A)Raw-material Waste minimization.

(B)Energy conservation monitoring.

improve technical competency.

(D)All of the above.



18. Biome is a natural community of

(A)Plants in a geographical area.

(B)Animals in a geographical area.

(C)Plants and animals in a geographical area.

(D)Plants in Arctic region.



19. Who proposed that succession is not orderly and directional but is heterogenous

(A)Clements

Egler

(C)Tansley

Reiter



20. In an ecosystem a food chain is represented as Dead organic matter Earthworm
Sparrow Falcon.

This is a type of

(A)Predator food chain

(B)Grazing food chain

(C)Detritus food chain

(D)Auxiliary food chain



21. The rate of biogenetic nutrients between the abiotic and biotic components of an ecosystem is often referred to as

(A)Turn over rate

(B)Production rate

(C)Standing state

(D)Cycling rate



22. Which of the following pair is not correctly matched regarding National Parks and their locations

(A)Nilgiri ->Tamil Nadu

(B)Sunderbans West Bengal

(C)Nanda Devi Uttar Pradesh

(D)Kanha ->Rajasthan



23. Ecotone is

(A)ecosystem

zone of an ecosystem

ecological study

zone between two ecosystem



24. When solid becomes liquid at its melting point, the entropy

(A)increases

(B)decreases

(C)zero

(D)remains unaltered



25. The CNS poisoning by methyl mercury is known as

(A)Methamoglobinemia

(B)Minamata disease

(C)Anemic disease

(D)All of the above



26. Topographic factors affect indirectly one of the following

(A)Edaphic factors

(B)Biotic factors

(C)Climatic factors

(D)All of the above



27. Atmosphere contains various layers each having characteristic composition. The correct sequence starting from earth surface is

(A)Stratosphere . Ionosphere . Toposphere.

(B)Toposphere . Ionosphere . Stratosphere.

(C)Ionosphere . Stratosphere . Toposphere.

(D)Toposphere . Stratosphere . Ionosphere.



28. One of the following in biogeochemical cycle has not involved biological fixation

(A)Oxygen

Carbon

(C)Nitrogen

Phosphorus



29. One of the following values indicates significance of the test

(A)P>0.05

(B)P<0.05

(C)P=0.05

(D)All of the above



30. The calorific value of natural gas varies from

(A)12,000 14,000 kCal/m3

(B)13,000 18,000 kCal/m3

(C)16,000 18,000 kCal/m3

(D)10,000 11,000 kCal/m3



31. Biogas is composed of

(A)Ethane, CO2, H2 N2

(B)Methane, CO2, H2 N2

(C)Methane, CO2 N2

(D)Ethane, Methane CO2



32. Which of the following is the concentration of COin the 2 atmosphere (water vapour free)

(A)0.32

0.032

(C)0.38

0.038



33. Methanization is carried out by the process of

(A)Incineration

(B)Alcoholic fermentation

(C)Thermo-chemical transformation


(D)Anaerobic fermentation



34. Diesel oil is a fraction obtained between

(A)40-120 °C

180-250 °C

(C)250-320 °C

280-360 °C



35. In a trickling filter biological method of domestic waste treatment a layer of biological community growing on the substrate is

(A)Algal film

(B)Bacterial layer

(C)Protozon community

(D)Zoogloea film



36. Primary clarifier basically designed to remove which of the following from waste water

(A)Particulate matter

(B)Heavy materials large size materials

(C)Particulate matter oily substances

(D)Dissolved substances


37. Solubility of NaCl in water is 10-1 m/l. The concentration of Na+ in water will be



38. In a river with symmetric channel

Maximum velocity is at the bottom

Minimum velocity is at the surface

Maximum velocity is at the borders

Maximum velocity is at 0.7 of the depth

39. Reciprocal of arithmetic mean of the reciprocal of individual observation refers to

(A)weighted mean

(B)geometric mean

(C)median mean

(D)harmonic mean



40. If the size of the sample is very small, then suitable sampling method for better result is obtained by

(A)Random sampling

(B)Stratified sampling

(C)Census sampling

(D)Purposive sampling



41. In an unbalanced or skewed distribution, which measures of central tendency is leased biased

(A)Mean

Median

(C)Mode

Range

42. Proposed fuel for controlled nuclear



(A)All of them

I

(C)III

I and II


43. What is the free energy, delta when 1.0 mole of water is converted, at 100 °C and 1.0 atm, to steam at 100 °C and 1.0 atm in a reversible manner



(A)9700 Cal

970 Cal

970 Cal

0.0 Cal



44. Silver oxalate Ag2(C2O4) is dissolved in pure water. The concentration of Ag+ in the saturated solution is 2.2 × 10-4 mole liter.
What is the ksp value of Ag2(C2O4)

(A)5.3 × 10-12

5.0 × 10-8

(C)2.2 × 10-4

11 × 10-12



45. The bond distance in A-B is 0.917 Å and the de pole moment is 1.91 D. The partial character of the bond is



50



38.5



46. One of the chief ores of uranium 92) is pitch blende (U3O8).
When pitch blende is treated with nitric acid, uranyl nitrate is formed. What is the
change in the oxidation number of uranium when this conversion takes place

6

no change







47. The silicate ion in chrysotile consists 4
of double strands of SiO4 tetrahedra
as shown below



What is the general composition of the silicate ion in chrysolite



48. One of the following categories of CRZ, there is no developmental activities are allowed

(A)CRZ-II

CRZ-I

(C)CRZ-III

CRZ-IV



49. Rapid EIA is called

study of three months

study of four months

study of six months

study of one year



50. Development of 'Green Belts' around industries are

control ground leachates

mitigate the gaseous pollutant

increase bioaesthetic

(D)all of the above