CSIR Earth Sciences June 2012 Paper

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Q-1. In still air fragrance of a burning incense stick will be smelt by an observer quickest when the experiment is carried out at

(a) Low altitude and high air temperature.

(b) High altitude and low air temperature.

(c) Low altitude and low air temperature.

(d) High altitude and high air temperature.

View Answer with Explanation

Q-2. How many squares are there in this figure?

Squares are there in this figure.

Squares Are There in This Figure.

Squares are there in this figure.

(a) 9

(b) 14

(c) 15

(d) 17

View Answer with Explanation

Q-3. A mountain road has 3 sections of different stopes as shown. What is the average stop m of the entire climb?

A mountain road has 3 sections of different stopes as shown

A Mountain Road Has 3 Sections of Different Stopes as Shown

A mountain road has 3 sections of different stopes as shown

(a) 1

(b) (13)<m<(12)

(c) 1<m<3

(d) (13)<m<1

View Answer with Explanation

Q-4. Which of the following graphs shows the concentration of a sugar solution as a function of the cumulative amount of sugar added in the process of preparing a saturated solution (the temperature ranting constant)?

(a)

Q-4_a The following graphs shows the concentration of a sugar

Q-4_a the Following Graphs Shows the Concentration of a Sugar

Q-4_a The following graphs shows the concentration of a sugar

(b)

Q-4_b The following graphs shows the concentration of a sugar

Q-4_b the Following Graphs Shows the Concentration of a Sugar

Q-4_b The following graphs shows the concentration of a sugar

(c)

Q-4_c The following graphs shows the concentration of a sugar

Q-4_c the Following Graphs Shows the Concentration of a Sugar

Q-4_c The following graphs shows the concentration of a sugar

(d)

Q-4_d The following graphs shows the concentration of a sugar

Q-4_d the Following Graphs Shows the Concentration of a Sugar

Q-4_d The following graphs shows the concentration of a sugar

View Answer with Explanation

Q-5. There are surd-piles which are geometrically similar but of different heights. The ratio of the masses of the send comprising two randomly chose piles will be equal to the ratio of the

(a) Pile heights.

(b) Squares of the pile heights

(c) Cubes of the pile heights.

(d) Cube-roots of the pile heights.

View Answer with Explanation

Q-6 There are two identical vessels of volume each, one empty, and the other containing a block of wood of weight w. The vessels are then filled with water up to the him. The two arrangements are shown as A and B in the figure. If the density of water is P and g is the acceleration due to gravity. Then

The two arrangements are shown as A and B in the figure.

The Two Arrangements Are Shown as a and B in the Figure.

The two arrangements are shown as A and B in the figure.

(a) A and B have equal weights.

(b) A is heavier than B by amount w.

(c) A is heavier than B by an amount vpgw.

(d) B as heaver than A by an amount Vpgw.

View Answer with Explanation

Q-7. If the father has blood group O and mother has blood group AB, what are the possible blood groups of their children?

(a) O, AB, A

(b) A, B

(c) A,O

(d) B, AB

View Answer with Explanation

Q-8. Nuelei of 32P and 32S. accelerated through the same potential difference enter a uniform. Transverse magnetic field (Z=15 for P and Z=16 for S). As they emerge from the magnetic field.

(a) Boot nuelei emerge undefeated.

(b) 32P is deflected less than 32S.

(c) 32P is deflected more than 32S.

(d) Both are equally deflected.

View Answer with Explanation

Q-9. A person chewing a bubble gum did not experience car pain in a jet plane while landing where another person not chewing a gum had car pain. The reason could be

(a) Chewing gurn is a pain killer

(b) Chewing equilibrates pressure on both sides of the car drum

(c) Chewing gurn closes the ear drum

(d) Chewing distracts the person

View Answer with Explanation

Q-10. The reason why a lunar eclipse does not occur at every full moon is

(a) The position of the sun is not favourable at all full moons.

(b) The orbital planes of the moon and that of the carth are inclined to each other by a small angle.

(c) The shape of the earth is not a perfect sphere.

(d) The moon reflects only from one hemisphere.

View Answer with Explanation

Q-11. A boy throws a stone vertically upwards with a certain initial velocity. Which of the following graphs depicts the velocity as a function of time. If the acceleration due to gravity is assumed to be uniform and constant?

(a)

Q-11_a Graphs depicts the velocity as a function of time

Q-11_a Graphs Depicts the Velocity as a Function of Time

Q-11_a Graphs depicts the velocity as a function of time

(b)

Q-11_b Graphs depicts the velocity as a function of time

Q-11_b Graphs Depicts the Velocity as a Function of Time

Q-11_b Graphs depicts the velocity as a function of time

(c)

Q-11_c Graphs depicts the velocity as a function of time

Q-11_c Graphs Depicts the Velocity as a Function of Time

Q-11_c Graphs depicts the velocity as a function of time

(d)

Q-11_d Graphs depicts the velocity as a function of time

Q-11_d Graphs Depicts the Velocity as a Function of Time

Q-11_d Graphs depicts the velocity as a function of time

View Answer with Explanation

Q-12. A rigid uniform bar of a certain mass has two bobs of the same size. But with different densities p and 2p suspended identically from its ends.

A rigid uniform bar of a certain mass has two bobs of the same size.

A Rigid Uniform Bar of a Certain Mass Has Two Bobs of the Same Size.

A rigid uniform bar of a certain mass has two bobs of the same size.

When the bar is level on a fulcrum as show in the figure. d and d' are related by

(a) 2d=d'

(b) d>2d'

(c) d=2d'

(d) d<2d'

View Answer with Explanation

Q-13. There are two points A and A' on the equator at longitudes 00 and 900E, and two other points B and B' on the same longitudes, respectively, but at latitude 600S. The distances (along the latitudes) between the points, A' and B, B' are related by

(a) AA'=BB'

(b) AA'=2BB'

(c) AA'=(3)BB'

(d) AA'=(2)BB'

View Answer with Explanation

Q-14.

Water is flowing through a tube as shown

Water Is Flowing Through a Tube as Shown

Water is flowing through a tube as shown

Water is flowing through a tube as shown. The cross-sectional areas at A and C are equal. And greater than the cross-sectional area at B. If the flow is steady, then the pressure on the walls at B is

(a) Less than that at A and that at C.

(b) More than that at A and that at C.

(c) Same as that at A and that at C.

(d) More than that at A but less than that at C.

View Answer with Explanation

Q-15. Match the two lists

Match the two lists
Match the two lists

Raw Material

Product

A. Limestone

a. Porcelain

B. Gypsum

b. Glass

C. Silica sand

c. Plaster of paris

D. Clay

d. Cement

A B C D

(a) a b c d

(b) d c b a

(c) a c d b

(d) d a c b

Q-16. The 14C dating method is not usually used for dating organic substance older than ~60,000 years. Because

(a) Such objects rarely contain carbon.

(b) Such objects accumulated 14C after their formation.

(c) In those times there was no production of 14C.

(d) Most of the 14C in the sample would have decayed.

View Answer with Explanation

Q-17. A seismograph reccives a S- wave 60s after it receives the P-wave. If the velocities of P-and S-waves are 7 km/s and 6 kms respectively, then distance of the seismic focus from the seismograph is

(a) 2520 km

(b) 42 km

(c) 7070 km

(d) 72 km

View Answer with Explanation

Q-18. The decay of a radioactive isotope P produces a stable daughter isotope D. The ratio of the number of atoms of D to the number of atoms of P after 2 half-lives would be

(a) 14

(b) 34

(c) 3

(d) 2

View Answer with Explanation

Q-19. The scatter plots represent the values measured by two similar instruments. Point a in the figures represents the true value. Which of the following is a correct description of the quality of these measurements?

Point a in the figures represents the true value.

Point a in the Figures Represents the True Value.

Point a in the figures represents the true value.

1. Fig 1 : good accuracy. Good precision

Fig 2 : good accuracy. Good precision

2. Fig 1: Poor accuracy, Poor precision

Fig 2: good accuracy, Poor precision

3. Fig 1: Poor accuracy, Good precision

Fig 2: Poor accuracy, Poor precision

4. Fig 1 : Poor accuracy, Poor precision

Fig 2 : Poor accuracy, Good precision

View Answer with Explanation

Q-20. Even though the concentration of CO2 is the same at sea level and at high altitude, the photosynthetic rate is higher in a plant grown at sea level than in a plant (of the same species) grown at high altitude the reason for this is

(a) Light intensity is more at sea level

(b) Temperature is lower at higher at sea level

(c) Atmospheric pressure is higher at sea level

(d) Elative humidity is higher at sea level.

View Answer with Explanation

PART - B

Q-21. What is the litho static pressure at the base of a 35 km column of grantic crust with an average density of 2.8 gm?

(a) 8.2 kilobars

(b) 5.6 kilobars

(c) 9.8 kilobars

(d) 7.2 kilobars

View Answer with Explanation

Q-22. Which of the following represents the correct relative abundance of elements in the Earth’s crust?

(a) S1>O>Fe>Al>Ca>Mg

(b) O>Al>Fe>Mg>Ca>Si

(c) O>Si>Fe>Mg>Ca>Al

(d) O>Si>Al>Fe>Mg>Ca

View Answer with Explanation

Q-23. Which one of the following is a common response of rocks to increase in pore-fluid pressure?

(a) Folding

(b) Melting

(c) Franking

(d) Shearing

View Answer with Explanation

Q-24. If σ1σ2σ3 represent the principal stresses, then a hydrostatic state of stress is characterized by following condition:

(a) σ1σ2=σ3

(b) σ1=σ2>σ3

(c) σ1>σ2>σ3

(d) σ1=σ2=σ3

View Answer with Explanation

Q-25. Andean mountains-Atlantic Ocean – San Andreas fault represent one of the following sequences of plate boundaries.

(a) Constructive-Destructive-Conservative

(b) Destructive-Constructive-Conservative

(c) Conservative-Constructive-Destructive

(d) Conservative-Destructive-Constructive

View Answer with Explanation

Q-26. What can give the best idea about the source rock of sandstone?

(a) Pala current analysis

(b) Grain size

(c) Lathe fragments

(d) Weathering index

View Answer with Explanation

Q-27. There are many mechanisms by which saline fluids can cause disintegration of rocks. Which one is not a correct mechanism?

(a) Crystallization pressure of salt crystals

(b) Chemical reaction between minerals and saline fluids

(c) Hydration and expansion of salt crystals

(d) Then mal expansion of salt crystals

View Answer with Explanation

Q-28. Which one of the following chemical present on the landscape is the most effective agent of chemical weathering of rocks?

(a) CO2

(b) N2

(c) O2

(d) H2O

View Answer with Explanation

Q-29. Littoral current direction can be precisely determined by

(a) Convexity and concavity of the coast.

(b) Pattern of beach ridge and swale complex

(c) Spil shape and curvature.

(d) Presence of producing deltas

View Answer with Explanation

Q-30. The wavelength range of the microwave. Region of electromagnetic radiation is

(a) 0.4to0.7μm

(b) 1mmto1m

(c) 1.3to3μm

(d) 3to14μm

View Answer with Explanation

Q-31. Desert pavements are surfaces characterized by a layer of coarse gravel. These are formed by

(a) Mechanical weathering and removal of sand and silt by rain water.

(b) Mechanical weathering and downward movement of sand and silt by eluviations

(c) Mechanical weathering and removal of sand and site by deflation

(d) Mass movement and winnowing by ground water

View Answer with Explanation

Q-32. Over the last 100 years climatic trends on the global seale have not been affected by

(a) Changes in orbital parameters.

(b) Variation in solar activity

(c) Human activity

(d) El-Nino Southern Oscillation.

View Answer with Explanation

Q-33. Crescent-shaped barchans tend to from when

(a) Transport rare are high or sand supply is limited.

(b) Transport rate are high or sand supply is unlimited.

(c) Transport rates are low or sand supply is limited.

(d) Transport rats are high and sand supply is unlimited.

View Answer with Explanation

Q-34. Headword erosion is responsible for

(a) Increase in the stream length and increase in catchment area.

(b) Increase in the stream length and decline in stream gradient.

(c) Increase in the catchment area and increase in stream gradient.

(d) Increase in stream slope and stream length.

View Answer with Explanation

Q-35. The matelote group which most closely match the composition of our solar system is

(a) Ordinary cbondrite.

(b) Carbonaceous contrite

(c) Iron meteorite

(d) Lunar meteorite

View Answer with Explanation

Q-36. Platinum group element is

(a) Lithophytes only

(b) Chalcoplule only

(c) Siderophile only

(d) Both chalcophile and Siderophile

View Answer with Explanation

Q-37. An igneous rock comprising predominantly of quartz and K-feldspar can be classified as:

(a) Gabbros

(b) Granite

(c) Peridotite

(d) Tantalite

View Answer with Explanation

Q-38. The concentration in wt% of conman salt (NaCl) in sea water is:

(a) 3.5

(b) 1.5

(c) 35

(d) 2.8

View Answer with Explanation

Q-39. What is the percentage of the total area of the ocean that overlies the continental shelf?

(a) 4%

(b) 7.5%

(c) 15%

(d) 10%

View Answer with Explanation

Q-40. The natural remnants magnetizations in two rock unit of the same age, but located at different latitudes have the same inclination, but differ in declination. Then the rock units have undergone

(a) Both longitudinal and rotation movement

(b) Longitudinal, but not rotational movement

(c) Rotational, but not longitudinal movement

(d) Neither rotational, nor longitudinal movement

View Answer with Explanation

Q-41. Two rock unit A and B of identical magnetic character and located at latitudes ϕA and ϕB(ϕA>ϕB) respectively, are magnetized by induction in the Earth’s magnetic field. Then the magnetization in A is.

(a) Identical with the one in B

(b) Stronger than in B, but dips gently

(c) Weaker than in B, but dips steeply

(d) Stronger than in B and dips steeply

View Answer with Explanation

Q-42. If Ps,PgandPr are resistivity’s of sea water, and rain water, then which of the following statements is true?

(a) Ps<Pg<Pr

(b) Ps>Pg<Pr

(c) Ps<Pg>Pr

(d) Ps>Pg>Pr

View Answer with Explanation

Q-43. As compared to near surface geological targets, the geophysical response of deeper geological targets will have.

(a) Larger amplitude and longer wavelength

(b) Smaller amplitude and longer wavelength

(c) Smaller amplitude and smaller wave-length

(d) Longer amplitude and smaller wavelength.

View Answer with Explanation

Q-44. A P-wave incident on a reflector at an angle 30° is reflected back into the medium as

(a) a P phase at 30° and an S phase at an angle greater than 30°

(b) a P phase at 30° and an S phase at an angle less than 30°

(c) P and S phases at 30°

(d) a phase at an angle greater than 30° and an S phase at less than 30°

View Answer with Explanation

Q-45. An isostatically compensated elevated land mass is associated with

(a) Strong negative compensated elevated land mass is associated with

(b) Strong negative Bouguer anomaly and almost no free-air anomaly

(c) Almost no Bouguer anomaly and strong negative free-air anomaly

(d) Almost no Bouguer and free-air anomalies.

View Answer with Explanation

Q-46. F,H and V, the vectors representing the Earth’s magnetic field and its horizontal and vertical components respectively, are connected by the relation

(a) |F|=|V|+|H|

(b) F×F=V×V+H×H

(c) F×V,H=0

(d) F=V×H

View Answer with Explanation

Q-47. In Sorue materials the strain does not reach a stable value immediately after the application of stress, but rises gradually to a stable value. This type of strain response is a characteristic of

(a) Elastic materials

(b) Inelastic materials

(c) Plastic material

(d) Visco-elastic materials

View Answer with Explanation

Q-48. In a racially homogeneous and isotropic earth, which of the following waves will not be generated due to an earthquake?

(a) P-wave

(b) S-wave

(c) Scattered wave

(d) Surface wave.

View Answer with Explanation

Q-49. Which of the following has the lowest value of specific heat?

(a) Inner core

(b) Outer core

(c) Lowest mantle

(d) Upper mantle

View Answer with Explanation

Q-50. Amongst the following minerals which one has the least number of powder diffraction peaks?

(a) Gypsum

(b) Halite

(c) Zireon

(d) Quartz

View Answer with Explanation

Q-51. The lilt of the Earth’s axis of rotation with respect to the plane of its orbit varies between 21.8 and 24.4 over a period of about

(a) 19,000 years

(b) 23,000 years

(c) 100,000 years

(d) 41,000 years

View Answer with Explanation

Q-52. The surface expression of the lithosphere descending into the asthenosphere is known as

(a) Island arc

(b) Trench

(c) Benioff Zone

(d) Canyon

View Answer with Explanation

Q-53. Impact of ocean acidification will be maximum on

(a) Corals

(b) Foraminifera

(c) Radiolarian

(d) Diatoms

View Answer with Explanation

Q-54. Which one of the following sequences represent the corrdct density order of the crust-mantle-core and bulk earth. Respectively (density in gm/cm3 )?

(a) 2.8-4.5-11.0-5.5

(b) 2.8-5.5-11.0-4.5

(c) 2.8-11.0-5.5-4.5

(d) 2.8-4.5-5.5-11.1

View Answer with Explanation

Q-55. The decay of 22236 Rn to 21884 PO is by

(a) Negatron decay

(b) Positron decay

(c) Alpha decay

(d) Electron capture

View Answer with Explanation

Q-56. Eutrophication is an offshoot of increased anthropogenic activity. This phenomenon would, in the long run, lead to an increase in:

(a) Environmental assimilation capacity

(b) Habitat perturbation and retardation

(c) Oxygen effluxes

(d) Biodiversity

View Answer with Explanation

Q-57. In the following profiles of plankton production and respiration, identify the points that represent compensation and critical depths

The following profiles of plankton production and respiration

The Following Profiles of Plankton Production and Respiration

The following profiles of plankton production and respiration

(a) A is critical depth and B is compensation depth

(b) A is compensation depth and B is Critical depth

(c) C is compensation depth and A is critical depth

(d) A is compensation depth and C is critical depth

View Answer with Explanation

Q-58. The process of nitrification can be described as

(a) Reduction of nitrate to ammonium

(b) Oxidation of ammonium to nitrate

(c) Oxidation of ammonium to nitrogen

(d) Reduction of nitrate to molecular nitrogen

View Answer with Explanation

Q-59. Which one of the following element’s residence time is less than that of the residence time of sea water (103to104years) ?

(a) Calcium

(b) Zinc

(c) Aluminum

(d) Magnesium

View Answer with Explanation

Q-60. Overall, day to day variation in the sea surface temperature in the global oceans can have a maximum range of

(a) 2°C

(b) 10°C

(c) 0.1°C

(d) 5°C

View Answer with Explanation

Q-61. The Bowen’s ratio that measures the ratio of sensible to latent beat fluxes from the sea surface to the atmosphere above, is 0.45 at 70°Nand0.23at70°S. This difference is because.

(a) The Southern hemisphere receives less radiation

(b) Winds are weaker in the southern hemisphere

(c) Southern hemisphere is cooler than the nor them hemisphere

(d) Southern hemisphere has lesser continental area and lacks the advection of cold air in winter

View Answer with Explanation

Q-62. How will the following two parameters change with latitude keeping the wind stress constant?

(1). Depth to which the water is influenced by wind and (2). The surface speed of the current

(a) They increase with latitude in both the hemispheres

(b) They decrease with latitude in both the hemispheres

(c) They increase with latitude in the southern hemisphere and decrease with latitude in the northern hemisphere.

(d) They increase with latitude in the southern hemisphere and decrease with latitude in the northern hemisphere

View Answer with Explanation

Q-63. During the southwest monsoon, the Somali current that flows in the western Arabian Sea is 250 km wide, 200m deep with a mean speed of 4ms1. The water flux in Sverdrup’s is (ISv=106m3s1)

(a) 200

(b) 250

(c) 20

(d) 2000

View Answer with Explanation

Q-64. In Polar Regions, deep waters from in the surface by cooling and sinking. The typical temperature of such waters is

(a) 0°C

(b) 4°C

(c) 1.9°C

(d) 32°C

View Answer with Explanation

Q-65. The freezing point of seawater

(a) Increases with salinity

(b) Decreases with salinity

(c) IS independent of salinity

(d) Increases with evaporation

View Answer with Explanation

Q-66. Cyclones are more prominent in the Bay of Bengal than in the Arabian Sea due to

(a) Higher surface temperature of Bay of Bengal

(b) Stronger winds over the Arabian Sea

(c) Large sediment deposition by the Himalayan rivers

(d) Large fresh water input from land

View Answer with Explanation

Q-67. Ultraviolet radiation from the sun is mostly absorbed by the

(a) Troposphere

(b) Ocean surface

(c) Land surthe face

(d) Stratosphere

View Answer with Explanation

Q-68.Identify the correct diagram from the options given below that shows the relation between relative humidity (%) in a cloud and the equilibrium cloud droplet radius (μm).

(a)

Q-68_a Shows the relation between relative humidity (%) in a cloud

Q-68_a Shows the Relation Between Relative Humidity (%) in a Cloud

Q-68_a Shows the relation between relative humidity (%) in a cloud

(b)

Q-68_b Shows the relation between relative humidity (%) in a cloud

Q-68_b Shows the Relation Between Relative Humidity (%) in a Cloud

Q-68_b Shows the relation between relative humidity (%) in a cloud

(c)

Q-68_c Shows the relation between relative humidity (%) in a cloud

Q-68_c Shows the Relation Between Relative Humidity (%) in a Cloud

Q-68_c Shows the relation between relative humidity (%) in a cloud

(d)

Q-68_d Shows the relation between relative humidity (%) in a cloud

QQ-68_d Shows the Relation Between Relative Humidity (%) in a Cloud

Q-68_d Shows the relation between relative humidity (%) in a cloud

View Answer with Explanation

Q-69. Which of the following surface would tend to heat up the lease, given the same amount of insulation?

(a) Meadow

(b) Concrete

(c) Rocks

(d) Bare soil

View Answer with Explanation

Q-70. The horizontal scale and period of Ross by waves are:

(a) Hundreds of kilometers and several

(b) Thousands of kilometers and several days

(c) Hundreds of meters and several months

(d) Hundreds of meters and several years

View Answer with Explanation

PART-C

(A) If a CupbZn ore deposit undergoes hydrographic dispersion. Which one is expected to show greater anomaly?

1. Cu

2. Pb

3. Zn

4. Cu & Pb

View Answer with Explanation

(B). The coal belonging to maceral group vitrine dominantly contains

(1) Spores

(2) Cell walls of vascular plants

(3) Oxidized plant martial

(4) Resin and algae

View Answer with Explanation

(C). The figure shows a ternary plot of C,H and O in the composition fields of peat and coal in relation to oil and oil shale

The figure shows a ternary plot of C,H and O in the composition fields

The Figure Shows a Ternary Plot of C,H and O in the Composition Fields

The figure shows a ternary plot of C,H and O in the composition fields

Which one of the following sequence correctly represent filed I,II,III and IV shown in the above figure?

(1) Oil shale – Anthracite – Oil – Peat

(2) Oil – anthracite - peat

(3) Peat – anthracite – Oil shale – oil

(4) Oil – anthracite – peat – Oil shale

View Answer with Explanation

Q:-72. (A) The Miller Index (111) in a normal class represent which one of the following crystal forms?

1. Dodecahedron & cube

2. Cube & pyritohedron

3. Dodecahedron & Trahedrom

4. Octahedron & tetrahedrom

(B) which one of the following crystal systems shows both (II0) and (0II) plants in their diffraction pattern, separately?

(C) The figure below represents a crystal lattice. Identity its corresponding reciprocal lattice

The figure below represents a crystal lattice

The Figure Below Represents a Crystal Lattice

The figure below represents a crystal lattice

(1)

Q-72_1 The figure below represents a crystal lattice

Q-72_1 the Figure Below Represents a Crystal Lattice

Q-72_1 The figure below represents a crystal lattice

(2)

Q-72_2 The figure below represents a crystal lattice

Q-72_2 the Figure Below Represents a Crystal Lattice

Q-72_2 The figure below represents a crystal lattice

(3)

Q-72_3 The figure below represents a crystal lattice

Q-72_3 the Figure Below Represents a Crystal Lattice

Q-72_3 The figure below represents a crystal lattice

(4)

Q-72_4 The figure below represents a crystal lattice

Q-72_4 the Figure Below Represents a Crystal Lattice

Q-72_4 The figure below represents a crystal lattice

View Answer with Explanation

Q:-73. (A) Which one the following figures represent the correct direction of normal stress (σ°) and shear stress (τ) components due to force ‘F’ on the given plane AB?

1.

Q-73_1 one the following figures represent the correct

Q-73_1 One the Following Figures Represent the Correct

Q-73_1 one the following figures represent the correct

2.

Q-73_2 one the following figures represent the correct

Q-73_2 One the Following Figures Represent the Correct

Q-73_2 one the following figures represent the correct

3.

Q-73_3 one the following figures represent the correct

Q-73_3 One the Following Figures Represent the Correct

Q-73_3 one the following figures represent the correct

4.

Q-73_4 one the following figures represent the correct

Q-73_4 One the Following Figures Represent the Correct

Q-73_4 one the following figures represent the correct

View Answer with Explanation

(B) The following figure shows the bedding the bedding cleavage relationships on two different on two different outcrops of a folded sandstone bed. Identify the correct statement

The following figure shows the bedding the bedding cleavage

The Following Figure Shows the Bedding the Bedding Cleavage

The following figure shows the bedding the bedding cleavage

1. Sequenes at both the outcrops are overtrumped

2. Sequences at both the outcrops are right-side up (normal)

3. Sequences at outcrops (i) is overtrumped and right side up at outcrop (ii)

4. Sequences at outcrop (i) is normal overtrumped at outcrop (ii)

View Answer with Explanation

(C) Which of the following two pair of strike slip faults are expected to show transpersonal and transpersonal deformation in the overlapping zones?

The following two pair of strike slip faults are expected to show transpersonal and transpersonal

The Following Two Pair of Strike Slip Faults Are Expected to Show

The following two pair of strike slip faults are expected to show transpersonal and transpersonal

1. (i) -tranpression, (ii) -transtension

2. (i) -transgression, (ii) - transgression

3. (i) -transtension, (ii) -transgression

4. (i) –transtension, (ii) –transtension

View Answer with Explanation

Q:-74. (A) Which one of the following statements about the past and present extent of ice-cap and glaciers is not true?

1. The present area of volume under the Antarctic ice cap is roughly six time more than those of Greenland icecap

2. during the last glaciations the Antarctic and Lauren tide ice caps were identical in terms of area and volume

3. At the maximum extent of glacial ice about two third of the Earth’s surface was covered by ice-caps and glaciers

4. Unlike during the glacial periods the extent and volume of ice cap is maximum today in the southem hemisphere

View Answer with Explanation

(B) Which one of the following proxies does not provide a near annual ambient temperature or precipitation record?

1. Spelethems

2. Lake verves

3. Tree rings

4. Corals

View Answer with Explanation

(C) Pre-Holocene events that coincided with the destruction of nor them hemisphere ice shelves and release of large volume of sea ice, icebergs and fresh water into the oceans are known as

1. Heinrich events

2. Danger- Oeschger events

3. Younger Dryas

4. Bond events

View Answer with Explanation

Q:-75. (A) Which amongst the following mineral sequences depicts the increasing metamorphic grade of argillaceous sediments?

1. Biotte – kainite – Garnet – Staurolite - Chlorite

2. Chlorie – Garnet – Bothe – Staurolite – Kyanite

3. Cholrie – Biotile – Garnet – Staurolite- Kyanite

4. Garnet – Biotile – Garnet – Kyanite – Staurolite

View Answer with Explanation

Q:-76. (A) Pale environmental interpretation employing microfossil record is the key input in petroleum system analysis. The continental margins are the potential area for the hydrocarbon exploration which of the following microfossil groups is expected to be most abundant in marginal sediments?

1. Radio Lana

2. Benthic foraminifera

3. Conodonts

4. Planktic foraminifera

View Answer with Explanation

(B) What are the principal factor controlling the morphological characteristics of benthic foraminifera and their distribution in marginal sediments?

1. Sea surface salinity and temperature

2. Dissolved oxygen in water column

3. Vertical temperature and salinity gradients

4. Sea bottom oxygen condition, organic carbon flux and bathymetry

View Answer with Explanation

(C) High abundance of elongated and flattened benthic foraminifers indicators

1. High organic carbon flux and low oxygen condition

2. Low organic carbon flux and high oxygen condition

3. High organic carbon flux and high oxygen condition

4. Low organic carbon flux and low oxygen condition

View Answer with Explanation

Q:-77. (A) The ocean seaways/gateways play a critical role in the evolution of global ocean circulation, climate and marine biota. What is the approximate liming of closing of panama isthmus?

1. Miocene

2. Pliocene

3. Eocene

4. Oligocene

View Answer with Explanation

(B) The opening of the Tasman Gateway occurred due to the separation of

1. Australia from Antarctica during 4553Ma

2. South America from Antarctica during 1112Ma

3. Australia from Antarctica during 2530Ma

4. Australia from Southeast Asia during 4553Ma

View Answer with Explanation

(C) The development of circum – Antarctic Circulation and as a consequence thermal isolation of the Antarctica triggering global cooling in the Cenozoic occurred due to

1. Opening of Tasman Gateway and closing of Panama Isthmus

2. Opening of Drake Passage and closing of Panama Isthmus

3. Closing of Indonesian Seaway and Panama Isthmus

4. Opening of Drake Passage and Tasman Gateway

View Answer with Explanation

Q:-78. (A) For a basaltic magma undergoing fractional crystallization, element A,B, and C in the following diagram represent

1. A – incompatible; B-neutral; C-compatible

2. A-incompatible; B-compatible; C – neutral

3. A-compatible; B-neutral; C-incompatible

4. A-nature; B-compatible; C-incompatible

View Answer with Explanation

(B) From the following schematic REE patterns of different minerals, identify the correct match

 The following schematic REE patterns of different minerals

the Following Schematic REE Patterns of Different Minerals

The following schematic REE patterns of different minerals

1. A-garnet; B-plagioclase; C-monazite; D-amphibole

2. A-plagioclase; B-garnet; C-monazite; D-amphibole

3. A-plagioclase; B-monazite; C-garnet; D- amphibole

4. A-monazite; B-plagioclases; C- amphibole; D-garnet

View Answer with Explanation

(C) The following P-T diagram depicts four metamorphic reaction A,B,C, and D.

Which one of the following statement is correct?

The following P-T diagram depicts four metamorphic reaction A,B,C, and D.

P-T Diagram

The following P-T diagram depicts four metamorphic reaction A,B,C, and D.

1. A is a geothermometer and B is a geobarometter

2. B is a geobarometter and A is a geobarometter

3. C is a geobarometter and D is a geobarometter

4. D is a geobarometter and C is a geobarometter

View Answer with Explanation

Q:-79. (A) Which one of the following phase equilibria diagrams correctly represent represents the formation of sub-solves granites?

Elements A, B, And C in the following diagram represent

Elements a, B, and C

Elements A, B, And C in the following diagram represent

View Answer with Explanation

(B) S-type granites are considered to have formed by partial melting of politic sedimentary rocks. What are the characteristic model minerals in the S-type granites?

1. Muscovite – Sillimantite – Garnet

2. Hornblende - Corundum – Aemite

3. Muscovite – Garnet – Aemite

4. Aemite – Reibeckite – Corundum

View Answer with Explanation

(C) A granite is formed by 10% batch melting of basaltic source with 2 ppm of Rb ( Drb -0.01). What will be Rb concentration in the garnet melt?

1. 40ppm

2. 20ppm

3. 10ppm

4. 2ppm

View Answer with Explanation

Q:-80. (A) Paleocene sedimentary rocks are developed in the Himalaya, and the shelf basins of Kutch-Saurashtra, western Rajasthan, and Tiruchirapally – Pondicherry and Kerala. The Paleocene succession in this area exhibit spatial and temporal variation in litho- and bio – facies. This of the following microfossil groups is commonly used for biostraligraphic subdivision of the coastal and Himalayan marine Paleocene succession?

1. Planktic foraminifera

2. Radiolaria

3. Diatoms

4. Larger foraminifera

View Answer with Explanation

(B) The following list provides pairs of rock formations representing stratigraphic equivalents. Which one of the following is incorrect?

1. Langpur Formation – Pondicherry Formation

2. Subathu Limestone – Pondicherry Formation

3. Laisong Formation – Kopili Formation

4. Langpur Formation – Kopili Formation

View Answer with Explanation

(C) Which one of the following formation is rich in lignite with its correct stratigraphic are?

1. Palana Formation – Paleocene

2. Disang Formation – Eocene

3. Subathu Formation – Eocene

4. Kopili Formation – Oligocene

View Answer with Explanation

Q: 81. Limestone deposition plays an important role in carbon sequestration and climate change on a geological timescale. Limestones are polygenetic in origin and they can be detrital, Chemical or biochemical in origin

(A) Which of the following statement is not correct regarding limestone?

1. Calcarenites are found to occur with quartz arenites

2. Dolomites are formed after limestone

3. The coarsely crystalline calcite is called midrate

4. Fossil skeletal materials are abundant

View Answer with Explanation

(B) Which is not related to limestone depositional environmental?

1. Reefs

2. Hadal Zone

3. Tidal flat

4. Slopes

View Answer with Explanation

(C) Which statement is true for weathering of limestone?

1. Causes ocean acidification

2. has no effect on CO2 sequestration on a geological timescale

3. Favored in arid climate

4. Makes groundwater soft

View Answer with Explanation

Q:-82. (A) If Earth’s axis of inclination to the plane of revolution increases from 2312to2412 . Then in the North Pole region, compared to the present,

1. Summer become warmer and winters colder

2. Both summer and winter become warmer

3. Both summer and winter become colder

4. Summer become colder and winter warmer

View Answer with Explanation

(B) If SW4 and SW4 are annual and daily average insulations at a given latitude respectively, then their maximum value are respectively observed at

1. North pole and tropics

2. Tropics and North Pole

3. Tropics and mid latitude

4. South pole and min latitude

View Answer with Explanation

(C) Suppose the Sun-Earth distance doubles. Then relative to its presents value the solar constant will become

1. Twice

2. Half

3. Four timer

4. one-fourth

View Answer with Explanation

Q:-83. (A) Getting the wet bulb temperature involves

1. Isobaric and isothermal processes

2. Isobaric and constant volume process

3. Isobaric and adiabatic process

4. Adiabatic and isothermal processes

View Answer with Explanation

(B) Evaporation process is

1. an isothermal and isobaric process

2. an isothermal and constant volume process

3. an Isobaric and adiabatic process

4. a constant volume and constant pressure process

View Answer with Explanation

(C) Measuring dew point temperature involves an

1. Isobaric process

2. Isothermal process

3. Adiabatic process

4. Isentropic process

View Answer with Explanation

Q:-84. If lg of water evaporates in 1 kg of air in an isobaric process, then temperature will

1. Increase by 2.5°C

2. Decrease by 1°C

3. Increase by 1°C

4. Decrease by 2.5°C

View Answer with Explanation

(B) 2 kg heat is added to 0.5kg air under (a) constant volume process, and (b) an isobaric process if the initial If the initial temperature are the same and equal to 300ko, then which statement is correct? [TaandTbarefinaltemperatureincase(a)and(b)respectively].

1. TaTb

2. Ta>Tb

3. Ta<Tb

4. Tb1.4Tb

View Answer with Explanation

(C) If W1,W2 and W3 are the works done by a parcel of air lifted to 1 km height in unstable, neutral and stable atmosphere respectively, then

1. W1>0,W2=0,W1<0

2. W1<0,W2>0,W1>0

1. W10,W2=0,W10

1. W1>0,W2>0,W1>0

View Answer with Explanation

Q:-85. T1andT2 are the temperature of two air parcels and T1T2=1KT1=300K . Both are at th same pressure and density. If q1andq2 are their specific humidifies and TV1andTV2 are their virtual temperature, respectively, then

1. q1>q2,TV1=TV2

2. q1<q2,TV1>TV2

3. q1<q2,TV1=TV2

4. q1>q2,TV1>TV2

View Answer with Explanation

(B) In a tephigram, the co-ordinate axes represent the variables

1. Temperature and pressure

2. Pressure and volume

3. Temperature and entropy

4. Potential temperature and pressure

View Answer with Explanation

(C) If γmandγe are most and dry adiabatic lapse rate respectively, and γe is the environmental lapse rate, Which among the following statement is always true?

1. γm>γd,γd>γc

2. γm<γd,γd>γc

3. γm>γc

4. γm>γd

View Answer with Explanation

Q:-86. (A) In a thunderstorm, charges are mainly generated at

1. Cloud base

2. Cloud top

3. at freezing level

4. between 10°Cand20°C levels

View Answer with Explanation

(B) In a typical thunderstorm

1. Negative charges are at the cloud top

2. Positive charge are at the cloud top

3. Cloud top is neutral

4. Middle of the cloud is neutral

View Answer with Explanation

(C) When lightning strikes the ground

1. Positive charge is deposited on the ground

2. Negative charge moves upward from the ground

3. Positive charge moves upward from the ground

4. Negative charge moves up from the ground

View Answer with Explanation

Q: - 87. (A) For addressing which of the following problems, a coupled ocean-atmosphere model is not essential?

1. Predicting the path of a tropical cyclone

2. Seasonal prediction of the monsoon

3. ENSO prediction

4. Climate prediction

View Answer with Explanation

(B) In a spectral model, variables are approximated by periodic function along(x,y,z respectively, refer to zonal,meridional and vertical directions )

1. Only the x direction

2. Only the y direction

3. Both x and z direction

4. Both x and y directions

View Answer with Explanation

(C) The largest amplitude of Interannual variability is observed in the following tropical ocean basin

1. West Pacific

2. Central Arabian Sea

3. Bay of Bengal

4. East Pacific

View Answer with Explanation

Q:-88. (A) Longitudinal extent of westerly winds in the equatorial region is maximum during

1. Summer monsoon time in La-Nino years

2. Winter monsoon time in La-Nino years

3. Summer monsoon time in EL-Nino years

4. Winter monsoon time in EL-Nino years

View Answer with Explanation

(B) Indian summer monsoon rainfall has never been excess in

1. La- Nino years

2. EL-Nino years

3. Leap years

4. Indian ocean dipole years

View Answer with Explanation

(C) If 1Wm2 excess heat is added to the ocean-atmosphere system, then the global tempreature will increase will increase by 1°C in about

1. ten years

2. fifty years

3. hundred years

4. ten thousand years

View Answer with Explanation

Q:-89. (A) 200hPa Geopotential shows a high over a certain area. This corresponds to a

1. Surface pressure low

2. Surface temprature low

3. Surface heat low

4. Surface pressure high

View Answer with Explanation

(B) In a monsoon depression, the center of low pressure tilts towards the

1. North

2. South

3. East

4. West

View Answer with Explanation

(C) The height of trade wind inversion is typically

1. 0.5Km

1. 5.0Km

1. 3.0Km

1. 16.0Km

View Answer with Explanation

Q:-90. The relationships between salinity (S) , temperature at which maximum density (Td) occurs for sea water and its freezing temperature (Ti) are given by

Td=4.00.215S

Tl=0.023S

(A) At what value of salinity does Td equal Ti ?

1. 34.7

2. 24.7

3. 35

4. 20

View Answer with Explanation

(B) Ice from more easily in

1. Low salinity and shallow water

2. Hight salinity and shallow water

3. Low salinity and deep water

4. High salinity and deep water

View Answer with Explanation

(C) The rate at which sea ice forms is a function of

1. Air temperature only

2. Air temperature and salinity

3. Air temperature and conductivity

4. Air temperature and wind speed

View Answer with Explanation

Q:-91. (A) The Antarctic circumpolar current ids driven by

1. Strong circumpolar vortex in the polar atmosphere

2. Strong north – westerly winds which prevail between about 40° and 60°S

3. The intense solar radiation received in December – January – February

4. The intense solar radiation received in June – July – February

View Answer with Explanation

(B) Maintenance of a permanent tongue of pack-ice-across the north them part of the weddel sea is helped by

1. Higher precipitation

2. Atmospheric vortex

3. Weakly developed circumpolar gyre

4. Colder temperatures

View Answer with Explanation

(C) The typical time taken by large by large Antarctic ice-bergs (~tens of kilometers in length) to melt is

1. Months

2. Day

3. Years

4. Decades

View Answer with Explanation

Q:-92. (A) Microbial loop, said to be seasonally significant in the following situation?

1. Ohgotrophic regions

2. Eutrophic water

3. Mesotrophic locations

4. Polar seas

View Answer with Explanation

(B) Which one of the following sequences in marine trophodynamics depicts the microbial loop?

1. Phytoplanktonflagellatesciliateszooplankton

2. CiliatesbacteriaPhytoplanktonzooplankton

3. Bacteriaciliatesflagellateszooplankton

4. Phytoplanktonbacteriaflagellateszooplankton 1

View Answer with Explanation

(C) Identity the correct set of primary consumers in the following options

1. Sharks and Storks

2. Crabs and croakers

3. Calanids and Anthozoans

4. Salmons and barracudas

View Answer with Explanation

Q:-93. (A) Which of the following has the lowest albedo (%) ?

1. Vegetation

2. Desert sand

3. Bare soil

4. Calm water

(B) At the same latitude season and time of day would of day would you expect the atmosphere above a sandy beach to be warmed more or less then than that above a pine wood?

1. Atmosphere above pine wood is warmer then that over sandy beach

2. Atmosphere above sandy beach is warmer then that over pine wood

3. Atmosphere above pine wood and sandy beach are equally warmer

4. Atmosphere above sandy beach is doubly warmer then that over pine wood

View Answer with Explanation

(C) What is the main different in origins of ice sheets that cover the Arctic and Antarctic region?

1. Arctic ice is mainly sea-ice where Antarctic ice comes from the Antarctic continent

2. Antarctic ice is mainly sea-ice while Aretic ice comes from the Arctic continent

3. Ice in both the regions is sea-ice

4. in both the regions ice come from the respective continents

View Answer with Explanation

Q:-94. (A) One of the serious global concerns in recent time is increasing trend in ocean acidification among other perceived threats, it is believed to affect marine life rather adversely. Overall, ocean acidification seems seems to have decreased the global ocean pH

1. from8.5to8.3

2. from8.5to7.5

3. from8.5to8.0

4. from8.5to7.0

View Answer with Explanation

(B) Which one of the following combination of factors could worsen ocean acidification scenario?

1. Fossil fuel burning + ocean dumping + Tsunamis

2. Tsunamis + Acid rain + themohaline circulation

3. Occan dumping + themohaline circulation + fossil fuel burning

4. Tsunamis + themohaline circulation + Occan dumping

View Answer with Explanation

(C) Anthropogenic carbon dioxide has penetrated the deepest into north Ailanthic because

1. It is a cold region and CO2 dissolved more in colder waters

2. It is located between North America and Europe where most of the CO2 is produced

3. It is a region which receives heat from the tropes Gulf Stream

4. Deep water forms there and therefore the depth of sinking of anthropogenic CO2 is higher there.

View Answer with Explanation

Q:-95. (A) If the angle φ between the wind and the surface current is given by

Not display

Q:-96. The following set of figures depict annual phytoplanlcton growth cycles in different oceanic regions As is well understood, their growth is affected by physical, chemical and some biological factors

Given your understanding of seasonal variations of all such factors, answer the following

The following set of figures depict annual phytoplanlcton

The Following Set of Figures Depict Annual Phytoplanlcton

The following set of figures depict annual phytoplanlcton

(A) In which world ocean regions would the phytoplankton biomass be high only during June-August period as shown I Fig a?

1. Sundarbans

2. Polar regions

3. Tropical Pacific

4. Bay of Bengal

View Answer with Explanation

(B) Which one of the following condition best describes the major peak in phytoplankton

Growth shown in Fig b?

1. Shallow mixed layer in the region

2. Increased day length from February onwards

3. Low ambient nutrients in the region

4. High zooplankton biomass in the region

View Answer with Explanation

(C) What cause the more or less uniform but moderate phytoplankton growth shown in Fig. e?

1. Invariable zooplankton biomass throughout the year

2. Low phytoplankton diversity indices during all moths

3. Similar levels of solar radiation and nutrient concentrations

4. Deep mixed layer all through the year

View Answer with Explanation

Q:-97. Indian ranks among the first 10 fishing nations of the world. The average annual landing of marine fish and shellfish the last two decades from the Indian coast is about 2.7 million tonner.

(A) The percentage contribution of fish landing from the east coast of Indian to total

1. 65

2. 10

3. 35

4.50

View Answer with Explanation

(B)The coastline is the shortest for the Indian maritime state of

1. Odisha

2. Kerala

3. Maharashtra

4. West Bengal

View Answer with Explanation

(C) The major east coast state capturing Bombay Duck (Harpodonneherens) is

1. Tamil Nadu

2. Odisha

3.Andhra Pradesh

4. West Bengal

View Answer with Explanation

Q:-98. (A) The transform function of an input signal at=e101 Passing throught a filter (1+2z) is not display

1.

2.

3.1

4. 0

View Answer with Explanation

Q:-99. A mountain range of average height 4km and density 2.8gm/cc isassociated with a Bouguer anomaly of 470 milligals.

(A) Which of the following statement is true?

1.The isostatic compensation of the mountains cannot be inferred in the absence of density values of the crust and the mantle.

2.The mountain range is isostatically undercompensated

3.The mountain range is isostatically undercompensated

4.The mountain range is isostatically overcompensated

View Answer with Explanation

(B) If a 2km thick material is removed from the mountain range, without giving any scope for isostatic readjustment, the Bougure anomaly would be

1. 470milligals

2. 235milligals

3. between235and470milligals

4. Less than – 470 milligals

View Answer with Explanation

(C) If the mountain range attains isostatic equilibrium after certain time, the height of the mountain would be (assume a density contrast of 0.5gm/cc at the Moho)

1. 3.7km

2. 3.3km

3. 2.9km

4. 2.5km

View Answer with Explanation

Q:-100. A two-dimensional sheet-like body of susceptibility K strikes N60°E at the magnetic latitude of 30° and gets magnetized by induction in the Eath’s magnetic field F. Recall that the magnetic anomaly F caused by a sheet-like body is of the from F=C[zcosQxsinQx2+z2] where C and Q are constants related to magnetization, dip and thickness of the sheet.

(A) The dip of effective magnetization in the sheet is

1. tan1(3)

2. tan1(1/3)

3. tan1(3/4)

4. tan1(4/3)

View Answer with Explanation

(B) The intensity of effective magnetization is

1. KF

2. 13KF2

3. 5KF28

4. 28kf5

View Answer with Explanation

(C) Consider the following statements:

Statement I: The positions of the maximum and minimum anomalies on the positions of the maximum and minimum anomaly

1. Statements I and II are true.

2. Statement I is true; II is false.

3. Statement I is false; If is true;

4. Statement I and II are false.

View Answer with Explanation

Q:-101. The two-way travel time in the case of two horizontal reflector are 10ms and 12ms respectively and the RMS velocities are 2500m/s and 3500m/s respectively. The the interval velocity between two reflectors is

1. 6500m/s

2. 500m/s

3. 3500m/s

4. 1000m/s

View Answer with Explanation

(B) The dip of a layer is 60° and its RMS velocity is 3584m/sec . Then the stacking velocity is

1. 6000m/s

2. 7580m/s

3. 7170m/s

4. 3585m/s

View Answer with Explanation

(C) For a two layer case, the reflection coefficient of upper and lower layer respectively is 0.1 and 0.1 . separated by 6ms , and the source pulse is given as (1,2,5,2,1) . If the sampling interval of the seismic trace is 2ms, the composite wavelet is

1. [0.1,0.2,0.4,0.2,0.1]

2. [0,0,0,5,0,0,0]

3. [1,2,5,2,1,0]

4. [1,0,0,0,0,0]

View Answer with Explanation

Q:-102. (A) A SP long crossing a shale formation and entering a porous bed shows the SP anomalies changing from

1. A positive value to negative with the point of inflection coinciding with the interface

2. A negative value to positive with the point of inflection coinciding with the interface

3. A positive value to negative with no clear indication of interface

4. A negative value to positive with no clear indication of interface

View Answer with Explanation

(B) A Sandston saturated with gas and oil and oil is detected from SP, resistivity and acoustic velocity logs by a destine SP anomaly break from positive to negative associated with.

1. Low resistivity and high velocity

2. High resistivity and low velocity

3. Low resistivity and low velocity

4. High resistivity and high velocity

View Answer with Explanation

(C) Sulphur, which occurs mainly in limestone may be identified by a density or acoustic log because of its

1.Low density and large transit time

2. Low density and low transit time

3. High density and large transit time

4. High density and low transit time.

View Answer with Explanation

Q:-103. (A) EM waves are elliptically polarized when primary and secondary field are at the

1. Same frequency and same phase

2. Same frequency and different phase

3. Different frequency and same phase

4. Different frequency and different phase

View Answer with Explanation

(B) For a material of resistivity of 108ohmm , the phase difference between the primary and secondary fields and the ellipicity of the polarized EM field will be respectively

1. 180°and0

2. 180°and1

3. 90°and1

4. 90°and0

View Answer with Explanation

(C) How do the real and imaginary parts of the response function vary with increasing response parameter (Q)?

1. Both increase asymptotically to attain a maximum of 1.0

2. Both decrease asymptotically to attain maxima of 0.0

3. The real part increases asymptotically to attain a maximum of 1.0 while imaginary

4. The real Part increases to attain a maximum of 1.0 while imaginary part increases to attain a maximum of 0.5 at Q=1 and decreases thereafter, while the imaginary part increases asymptotically to attain a maximum of 1.0

View Answer with Explanation

Q:-104. (A) If φ and φh represent the natural and resonant frequencies, respectively, of a seismometer, in which of the following case, it would behave as a displacement meter?

1. φeφ

2. φeφ

3. φe=φ

4. φe=1φ

View Answer with Explanation

(B) An S-wave propagating through the Earth shows a time difference of 1.0 sec between its arrivals on the radial and transverse components. Considering an average velocity of 4.0km/sec and anisotropy of 8% , the thickness of the layer would be

1. 100km

2. 50km

3. 200km

4. 500km

View Answer with Explanation

(C) The velocity of tsunami wave traveling through an open occam of depth 5km is about

1. 220m/s

2. 20m/s

3. 2m/s

4. 800m/s

View Answer with Explanation

Q:-105. (A) Three masses M,2M and 3M are distributed inside three spheres A,B and C of radio R, 2R and 3R respectively. The total normal gravitational fluxes gA,gBandgC over A,B and C respectively are connected by the relation

1. gA=gB=gC

2. 3gA=2gB=gC

3. 6gA=3gB=2gC

4. 18gA=9gB=gC

View Answer with Explanation

(B) For the given situation (see fig), where ρ1ρi and ρ1<ρ2, a magntotelluric sounding was carried out at A, The obtained apparent resistivity will be

The given situation (see fig), where ρ_1≪ ρ_i and ρ_1< ρ_2,

The Given Situation (See Fig), Where ρ_1≪ ρ_i and ρ_1< ρ_2,

The given situation (see fig), where ρ_1≪ ρ_i and ρ_1< ρ_2,

  1. Equal due to ¯D¯=0

  2. Equal due to ¯D¯=ρz

  3. Parallel off set due to ¯D¯=0

  4. Parallel off set due to ¯D¯=ρZ

View Answer with Explanation

(C) An electromagnetic wave propagating in free space with a period of 1010 see has a wavelength of

1. 102m

2. 3×102m

3. 102

4. 1m

View Answer with Explanation

Q:-106. (A) Increase m the sinuosity index of a river is not associated with

1. An increase m suspended to bed load ratio

2. A decline in flow velocity

3. A decline in with-depth ratio

4. An increase in sediment load

View Answer with Explanation

(B)

The above table gives the hypsometric integral for four river basins
The above table gives the hypsometric integral for four river basins

Basin

A

B

C

D

Hypsometric integral

0.25

0.55

0.78

0.93

The above table gives the hypsometric integral for four river basins. Identify the incorrect interpretation of the integral

1.Basin C has higher relative relief then basin A

2.Basin D is located largely over a plateau

3.Basin A is dominated by plains

4.Basin C has more area at higher elevation than basin D

(C)

The above table gives the rate of change in stream number with stream
The above table gives the rate of change in stream number with stream

Basin

A

B

C

D

Hypsometric integral

-0.54

-0.58

-0.62

-0.49

The above table gives the rate of change in stream number with stream order when plotted on a sem-log graph paper. Note all the four stream have the same order. Which of the following statement is correct?

1.The number of lower order streams is highest in basin D

2.The number of lower order streams is minimum in basin C

3.The number of lower order streams is maximum in basin C

4.Basin A has more number of lower order streams than basin B

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Q:-107. (A) Suppose two alluvial rivers (X and Y) have the same bank full discharge channel slopes. The slope of river X=0.0006 and slope of river Y=0.01 . Then

(i) River Y is meandering and single thread

(ii)River X is multi-thread and braided

(iii)River Y is either braided or straight

(iv)River X is either meandering or anabranching

1.(i) and (ii) are true

2.(iii) and (iv) are true

3.(iii) is true and (iv) is false

4.(i) is true and (iii) is false

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(B) A large river cutting across a ride will not display one of the following change in its morpj=hology and hydraulic properties.

1. Decrease in the width depth ratio

2. Increase in the flow velocity

3. Decrease in channel cross-sectional area

4. Increase in mean discharge

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(C) The exponents of hydraulic geometry equation will display one of the following relationship for a river over the alluvial fan

1. m>f>b

2. m>b>f

3. b>m>f

4. b>f>m

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Q:-108. There are five chemical fractions which can be selectively extracted from a floodplain soil as shown below:

Fraction I - Exchangeable

Fraction II- Bound to carbonate

Fraction III – Bound to amorphous Fe and Mn hydroxide/oxides

Fraction IV – Bound to organic matter

Fraction V – Residual

Based on the above information answer the following:

(A) In a well-aerated soil arsenic may occur in the extraction fraction

1.I

2.II

3.III

4.IV

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(B) Which extraction fraction is responsible for the phosphorus availability to the plants

1. I

2.II

3.III

4.IV

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(C) Which excretion fraction is micro bialy oxidized to mobilized arsenic to the groundwater?

1.I

2.IV

3.III

4.V

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Q:-109.

The diagram show stability limits of natural water at the Earth’s surface in term of Eh and pH at 25°C The limits are based on partial on pressure of oxygen of 1 and 101atm.

  1. River water

  2. Mine water

  3. Groundwater

  4. Sea water

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(B) Low pH value of mine water is due to

1. Mineral weathering at higher Eh

2. Mineral weathering at lower pH

3. Oxidation of organic matter

4. Microbial activities

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(C) Water of organic rich impeded sous will plot in the stability zone characterized by

1. Moderate to high pH, low Eh

2. High pH, low Eh

3. High Eh, low pH

4. High pH, moderate Eh

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Q:-110. (A) In a magma chamber during the process of differentiation if a large amount of granitic gneiss rock is added due to chamber collapse and assimilated then the magma change its composition rowaed:

  1. More ultra-basic

  2. More basic

  3. More acidic

  4. More ultra-mafic

    In a magma chamber during the process

    In a Magma Chamber During the Process

    In a magma chamber during the process

    In the above triangular plot at point ‘x’ what mineral is expected to from under pyroxene hornfels facies?

  1. Wollastanite

  2. Grossularite

  3. Andalusite

  4. Anorthite

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(C) Which one of the following mineral assemblage indicates quarts – albeit – muscovite – chlorite subfacies metamorphism of a basic schist.

1. Quarts – albite – muscovite

2. Calcite – epidote – tremolite – quarts

3. Albite – epidote – chiorite – calcite – sphere – quartz

4. Quarts – muscovite – Chlorite – albite

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