MAHA SET 2019 Question Paper 2 Earth, Atmospheric Ocean And Planetary Science

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EARTH, ATMOSPHERIC, OCEAN AND PLANETARY SCIENCE
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2

Earth, Atmospheric, Ocean and Planetary 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. Consider the below given diagram 2. A structure that an animal possesses
that serves no function, has a
of gastropod shell, identify the
reduced function, or serves a
correct set of morphological
different function than it did in its
terminologies : ancestors is termed as a(n) :
(A) Extra appendage
(B) Superfluous organ
(C) Chromosomal aberration
(D) Vestigial structure
3. In a petroleum well the bottom hole
temperature at 3.2 km recorded
80ºC. The mean surface temperature
in the region is 25ºC. What will be
the geothermal gradient ?
(A) 17.17ºC/km
(A) 1-sutural angle, 2-spire angle,
(B) 07.17ºC/km
3-rib, 4-siphonal canal
(C) 27.17ºC/km
(B) 1-spire angle, 2-rib, 3-sutural (D) 37.17ºC/km
angle 4-aperture 4. ................. of kerogen is the principal
stage of oil formation.
(C) 1-spire angle, 2-sutural angle,
(A) Diagenesis
3-rib, 4-siphonal canal
(B) Metagenesis
(D) 1-spire angle, 2-sutural angle, (C) Metamorphosis
3-rib 4-columella (D) Catagenesis
3 [P.T.O.

5. ..................... is the movement of 9. The formula to calculate the speed
petroleum from non-reservoir rocks of wave or celerity (C) is :
to reservoir rocks. (L = wavelength and T = wave
(A) Seepage period, H = wave height)
(B) Primary migration (A) C = L/T
(B) C = T/L
(C) Secondary migration
(C) C = L*T
(D) Tertiary migration
(D) C = H/T
6. Which one of the following factors
10. One of the following is a barrier
does not affect the scale of aerial attached at one end to the mainland,
photograph ? with or without recurves, and
(A) Focal length backed by a bay, lagoon or
(B) Flying height marshland :
(C) Ground elevation (A) Chenier ridge
(B) Beach Berm
(D) Tilt
(C) Fringing Reef
7. The coral provides following to the
(D) Barrier spit
zooxanthellae in the symbiotic
11. Identify the correct sequence of land-
relationship. form development on the head lands
(A) Carbon dioxide due to erosion :
(B) Oxygen (A) Cliff – cave – notch – stack
(C) Nitrogen – arch
(D) Sugar (B) Cliff – cave – stack – notch
– arch
8. Phytoplanktons have extremely
(C) Cliff – notch – cave – arch
small diameter because : – stack
(i) it provides relatively high (D) Stack – arch – cave – notch
surface area to volume ratio. – cliff
(ii) it attributes to frictional 12. Identify the incorrect statement :
resistance to sinking. (A) Semi-diurnal tides are
(iii) it helps in efficient uptake of characterized by two equal high
nutrients. tides and two equal low tides
during a lunar day
(iv) it helps to navigate efficiently
(B) Spring tides are higher than
in sea water.
normal high tides
(A) Only (i), (ii) and (iii) are true (C) Neap tides are lower than
(B) Only (i) and (iii) are true normal low tides
(C) All are true (D) Neap tides occur twice a month
(D) Only (iii) is true when the moon is new or full
4

13. In the North Atlantic a clockwise 18. A deposit of unsorted material which
circulation includes the North has accumulated along the margins
equatorial current the Gulf Stream of a valley glacier :
and : (A) Ground moraine
(A) Benguela (B) Lateral moraine
(B) Canaries (C) Terminal moraine
(C) Agulhas (D) End moraine
(D) Oyashio 19. Match the following site
investigation in-situ test on the rocks
14. A narrow gap in an uplifted range according to their characteristics :
or topographic feature through Test
which water flows : (a) Schmidt Hammer test
(A) Wind gap (b) Point load test
(B) Dry valley (c) Till test
(C) Water gap (d) Pressuremeter test
(D) Col Characteristics
15. One of the following pairs of features (1) It is carried out to assess
does not include the products of deformation ability inside a
weathering : borehole
(A) Tafoni-saprolite (2) It is carried out to estimate the
angle of friction of
(B) Vertifacts-erratics discontinuities or basic angle of
(C) Laterite-saprolite friction for smooth
(D) Tafoni-alveoli discontinuities to allow
16. A process which mainly contributes calculation of the residue angle
of friction and joints roughness
to the development of loess and
coefficients
stone pavements :
(3) Measures the strength index of
(A) Abrasion rock sample classification and
(B) Caritation for correlation with uniaxial
(C) Deflation compressive strength of the rock
(D) Cavernous weathering (4) It is used to obtain an
approximate estimation of
17. Streamlined parallel ridges aligned
uniaxial compressive strength
with, and typically tapering away of rocks
from the direction of the prevailing Codes :
wind :
(a) (b) (c) (d)
(A) Deflation hollows (A) (1) (4) (3) (2)
(B) Yardangs (B) (2) (1) (4) (3)
(C) Drumlins (C) (3) (2) (1) (4)
(D) Roche moutonnee (D) (4) (3) (2) (1)
5 [P.T.O.

20. Match the following :
23. Diamond in kimberlite and
List I corundum in nepheline syenite are
(a) Stock works the good examples of :
(b) Saddle reefs (A) Segregation deposits
(B) Dissemination deposits
(c) Ladder veins
(C) Injection deposits
(d) Gash veins (D) Pegmatitic deposits
List II 24. Banded black coloured coal that
(1) Mineralisation along the creasts contains lower amounts of volatile,
of anticline moisture and have higher carbon
content can be classified as :
(2) Transverse and roughly (A) Anthracite
parallel fraction filled with the (B) Bituminous coal
ore (C) Bone coal
(3) An interlacing network of small (D) Lignite
ore-bearing veinlets 25. Correctly match the regional
(4) Small wedge-shaped fissures stratigraphic sequence of the
Western Dharwar Craton :
filled with the ore
A
Codes : (a) Sargur Group
(a) (b) (c) (d) (b) Gorur gneiss
(A) (2) (1) (3) (4) (c) Closepet granite
(B) (1) (2) (3) (4) B
(C) (3) (1) (2) (4) (1) 3.3 – 3.4 Ga
(2) 3.3 – 3.1 Ga
(D) (4) (3) (2) (1)
(3) 2.5 – 26 Ga
21. In which of the following areas does Codes :
Iron ore deposit occur ? (a) (b) (c)
(A) Rudrasagar (A) (2) (1) (3)
(B) Zawar (B) (1) (2) (3)
(C) Kudremukh (C) (1) (3) (2)
(D) (2) (3) (1)
(D) Dariba
26. The typical record of the early crust
22. Porphyry copper deposits are of ultramafic high Fe-Mg rocks
associated with : depicting upto 500ºC hotter mantle
(A) Mid oceanic ridges are :
(A) Eclogite
(B) Subduction zones
(B) Pegmatite
(C) Continental rifts (C) Anorthosite
(D) Back arc basins (D) Komatiites
6

27. The cimmerian orogeny 32. Which one of the following stable
characterizes for :
isotopic ratio is used for estimation
(A) Opening up of Pacific Ocean
of palaeotemperature of sea water ?
(B) Opening up of Paleotethys
(A) 13C/12C
(C) Closure of Neotethys
(D) Closure of Paleotethys (B) 18O/16O
28. Thrusting and folding of sediments (C) 87Sr/86Sr
in the Himalaya appears to have (D) 15N/14N
caused a crustal shortening of the
33. Isotopes are the elements having :
order of :
(A) 10,000 km (A) Same N but different Z and A
(B) 2,400 km (B) Same Z but different N and A
(C) 1,000 km (C) Same A but different Z and N
(D) 500 m (D) Same N, Z and A
29. When the strain rate is related to 34. The separation between arrival
stress through a non-linear
times of P and S wave .................. with
relationship, it is described as :
distance and the ratio of P and S
(A) Plastic deformation
(B) Elastic deformation wave ........................ with distance.
(C) Viscous strain (A) Decrease, increase
(D) Non-linear deformation (B) Increase, decrease
30. A bed parallel elongation giving rise (C) Remain same, decrease
to tectonic thinning is characteristic
(D) Increase, remain same
of :
35. The half-life of 238U is 4468×106
(A) Extensional fault
(B) Thrust fault years and 235U is 704×106 years.
(C) Normal fault The ratio 235 U/ 238 U in a
(D) Buckle fault metamorphosed sample is 0.007257.
31. Considering the two-dimensional Given that the ratio was 0.4 at the
stress, ( ), the normal stresses are time of formation, calculate the
expressed as ....................... and the metamorphosed sample age.
shear stresses are ..................... .
(A) 4.8 × 106 years
(A) xy and yz; xz and yz
(B) 4.8 × 109 years
(B) xx and yy; xy and yx
(C) xy and yx; xx and yy (C) 4.8 × 103 years
(D) xz and yz; xy and yz (D) 4.8 × 107 years

7 [P.T.O.

36. Rb-Sr age based on the individual 39. Bouguer correction is applied to
minerals often yield younger age correct for the gravity anomaly due
than that of the whole rock age. The to mass between station location and
reason for this is :
.......................... .
(A) The whole rock gives enough
sample to date the rock (A) Mohorovicic discontinuity
accurately (B) Base of upper crust
(B) The whole rock contains more (C) Mean sea level
87 Kb than the individual
(D) Local datum plane
minerals 40. Six electrode configuration, termed
(C) Individual minerals have a axial parallel, perpendicular, Radial,
higher closure temperature and Azimuthal and equatorial spreads
diffusion of Sr atoms is not are associated with which of the
random at smaller scale (~ a few
meters) following array.
(D) Individual minerals have a (A) Wenner array
lower closure temperature and (B) Schlumberger array
diffusion of Sr atoms is random (C) Dipole array
at smaller (~ a few meters) scale
(D) Lee-Partitioning
37. The value of ‘g’ (acceleration due to
gravity) at a place varies with time 41. At a point on the Earth at height
due to which of the following : 1000 m, the observed value of
(A) Isostatic rebound gravity is 979700 mGal. The value
(B) The topography of the at sea level is 980000 mGal.
continents Calculate the Bouguer anomalies :
(C) Lateral differences in the (A) –1046 gu
compositions of rocks (B) –4443 gu
(D) The Earth’s rotation
(C) –5246 gu
38. Identify the correct statements from
the following : (D) –7013 gu
(i) Proton precession magneto- 42. The peculiar structure of a
meter measures the total field particular type of nodular anhydride
(ii) Fluxgate magnetometer that consists of slightly elongated,
measures the total field irregular polygonal masses of
(iii) Fluxgate magnetometer anhydrite separated by thin dark
measures a Component of the stringers of carbonate or clay
field minerals is referred to as :
(iv) Proton precession magneto-
(A) Mesh wire structure
meter measures component of
the field (B) Framboydal frame structure
(A) (i) and (iv) (B) (ii) and (iv) (C) Chickenwire structure
(C) (i) and (iii) (D) (iii) and (iv) (D) Both (A) and (B) are correct
8

43. Which of the following groups of 47. Brown cathodoluminescence colour
rock formations is ‘NOT’ arranged of quartz is suggestive of .................
from older to younger ?
provenance.
(A) Semri-Kaimur-Rewa-Bhander
(A) Plutonic quartz
(B) T a l ch ir -D a m u da -P a n ch a t -
Mahadeva (B) Pegmatitic
(C) Jurio-Jumara-Jhuran-Bhuj (C) Volcanic
(D) Uttature-Trichinopoly-Ariyalore- (D) Regionally metamorphosed rock
Niniyur 48. The temperature at the centre of the
44. The correct chronological order earth is estimated to be reaching
(older to younger) of the following to :
stratigraphic units is : (A) 10,000ºC (B) 12,000ºC
P : Talchir Tillite
(C) 8,000ºC (D) 4,500ºC
Q : Muth Quartzite
49. The main energy source for the
R : Umia Ammonite Bed
geodynamo is :
S : Umaria Marine Bed
(A) Mantle convection
(A) P-R-S-Q (B) Q-P-S-R
(C) R-Q-P-S (D) P-Q-R-S (B) Thermal convection
45. This is the current epoch of the (C) Rotational friction
quaternary as is known as Oxygen (D) Radioactivity
Isotope Stage 1 : 50. Which one of the following is the
(A) Cenozoic (B) Neogene earliest formed mineral condensate
(C) Pleistocene (D) Holocene in the early solar system ?
46. In Phi( ) grain size scale : (A) Corundum
(a) Increasing absolute value of (B) Forsterite
negative Phi numbers indicate
(C) Anorthite
increasing millimetre size
(b) Increasing positive Phi (D) Enstatite
numbers indicate decreasing 51. The fundamental formula to
millimetre size calculate the moment magnitude of
(c) Increasing positive Phi an earthquake is :
numbers indicate increasing (A) Slip × Area × Density
millimeter size (B) Area × Rupture × Young’s
(d) Increasing absolute value of modulus
negative Phi numbers indicate
decreasing millimeter size (C) Elastic modulus × Rigidity ×
(A) (a), (b) (B) (c), (d) Velocity
(C) (d), (a) (D) (b), (c) (D) Slip × Area × Elastic modulus

9 [P.T.O.

52. One of the following features is not 55. A graph that shows the relationship
associated with strike-slip fault : between the size of sediment and the
(A) Beheaded Valley threshold flow velocity required to
(B) Sag pond erode it, transport it and deposit it :
(C) Hog back (A) Hjulstrom curve
(D) Shutter ridge (B) Flow duration curve
53. Aggradation : (C) Sediment rating curve
(A) Leads to lowering of stream (D) Trombe’s curve
channel elevation
56. The peeling away of layers or sheets
(B) Reduces the slope of the river
of rock from exposed rock surface
channel
is :
(C) Leads to raising of the stream
channel elevation (A) Exhumation
(D) Results into deepening of river (B) Exfoliation
channel (C) Insolation
54. Match the following : (D) Chelation
List-I 57. Which one of the following gives the
(a) Carbonation strongest evidence that the moon is
(b) Hydrolysis derived from the earth.
(c) Chelation (A) Proximity of the moon to the
(d) Hydration earth
List-II (B) Both the moon and earth have
(1) The addition of water to the basaltic crust
molecular structure of a (C) Both have similar oxygen
mineral
isotopic composition
(2) The reaction of minerals with
(D) Silicate-earth and silicate-moon
dissolved CO2 in water
have similar SiO2 and MgO
(3) The incorporation of cations
from the mineral into organic content
compounds 58. Earthquake shadow zone exists
(4) The decomposition and reaction because :
with water (A) The outer core is liquid
Codes : (B) The seismic waves do not follow
(a) (b) (c) (d) the Snell’s law at the core-
(A) (4) (3) (2) (1) mantle boundary
(B) (2) (4) (3) (1) (C) D11 layer at the core-mantle
(C) (2) (3) (4) (1) boundary
(D) (4) (2) (1) (3) (D) The inner core is solid
10

59. The long wavelength geoid of the 64. One of the following temperature
Earth is controlled by density regimes was not recognized by
variation in : Köppen :
(A) Crust (B) Deep mantle (A) Tropical (B) Desert
(C) Mid-latitude (D) Polar
(C) Core (D) Inner core
65. In Köppen climate system “Am”
60. The surface samples of moon are
climate is called tropical :
remarkably depleted in :
(A) Desert (B) Steppe
(A) Non-volatile elements
(C) Wet-and-dry (D) Monsoon
(B) Volatile elements
66. In bio-geography edaphic factors are
(C) Refractory elements those factors that are related to :
(D) Refractory trace metals (A) Rocks (B) Landforms
61. The magma-ocean concept was (C) Soils (D) Plant habitat
developed to explain the petrology 67. Match the following :
and geochemisty of : A
(A) Mars (B) Moon (a) Pools
(C) Earth (D) Jupiter (b) Sapping
62. The general equation for a seismic (c) Barrier Spit
wave velocity is : (d) Stack
B
Elastic modulus
(A) (1) Lagoon
density
(2) Headland
(Density) (3) Riffles
(B) (4) Groundwater
Time
Codes :
Cycles
(C) (a) (b) (c) (d)
Seconds
(A) (3) (1) (4) (2)
2
Shear Modulus (B) (1) (2) (3) (4)
(D)
Bulk Modulus (C) (3) (4) (1) (2)
63. The unaccreted gas and dust during (D) (4) (3) (2) (1)
the early planetary phase was blown 68. Hydrograph shows change in
away during : .................... with time.
(A) T-Tauri phase (A) Volume
(B) Nebular phase (B) Water level
(C) Corona phase (C) Discharge
(D) S-Tauri phase (D) Velocity
11 [P.T.O.

69. The groundwater in the Narmada 72. In basaltic rocks, alteration of the
valley and the hilly terrain in
outer iron-rich rim of olivine produce
western and central India falls is
this category of major brownish red mineral called :
hydrogeochemical provinces of (A) Nephrite
India : (B) Schorlomite
(A) Bicarbonate Province
(C) Iddingsite
(B) Bicarbonate-Chloride Province
(C) Chloride Province (D) Kaolinite
(D) Bicarbonate-Chloride and 73. Magma undering extensive
Chloride Province differentiation in Fe /(Fetot + MgO)
tot

70. What is the specific capacity of a ratio coincide with a miminal change
well that is pumping at 249 lpm, has in silica content resulting in
a static water level at 5 m and crystallization of olivine and
pumping water level of 6.50 m ?
pyroxene without Fe-Ti oxides leads
(A) 166 lpm/meter of drawdown
to formation of .................. .
(B) 266 lpm/meter of drawdown
(C) 373.5 lpm/meter of drawdown (A) N-MORB
(D) 156 lpm/meter of drawdown (B) E-MORB
71. Which one of the following is the (C) Ferrobasalt
correct expression for Ghyben- (D) Fast-spreading EPR
Herzberg relation with respect to
fresh water-seawater boundary. 74. ....................... microstructure is
(A) For every meter of fresh water characterise as vermicular
head above mean sea level the intergrowth of quartz and sodic-
thickness of fresh water zone plagioclase, formed by replacement
resting on the salt water is 14 of K-feldspar in deformed granitic
metres rocks.
(B) For every 40 metres of fresh
water head above mean sea (A) Myrmekite
level the thickness of fresh (B) Migmatite
water zone resting on the salt (C) Metapeletic
water is 40 metres
(D) Idioblastic
(C) For every meter of fresh water
head above mean sea level the 75. Which of the following igneous
thickness of fresh water zone complex is not associated with
resting on the salt water is 40 Deccan Volcanic Province ?
metres (A) Girnar
(D) For every 10 metres of fresh
water head above mean sea (B) Phenaimata
level the thickness of fresh (C) Mundevara
water zone above salt water is (D) Sittampundi
40 metres
12

76. PGE are mostly associated with : 80. The group of clay minerals having
1 : 1 ratio of tetrahedral and
(A) Felsic rocks
octahedral components is :
(B) Ultramafic rocks (A) Kaolinite
(C) Intermediate rocks (B) Illite
(D) Mafic rocks (C) Smectite
(D) Vermiculite
77. Mineral pigeonite typically occurs in
81. Chrome garnet is termed as :
the volcanic rocks because : (A) Almandine
(A) It is relatively light mineral (B) Grossularite
and floats in magma (C) Spessartite
(B) At deeper conditions it exsolves (D) Uvarovite
into other pyroxenes 82. The defining symmetry
characteristics of the crystals
(C) At deeper levels pressure belonging to the cubic system is :
reduces the stability of (A) Three axes of four-fold
pigeonite symmetry
(D) At deeper conditions it quickly (B) Four axes of three-fold
symmetry
reacts with other minerals
(C) Oblique and vertical minor
78. Melting of pure enstatite leads to : planes
(A) Liquid of enstatitic composition (D) Four axes of two-fold symmetry
(B) Forsterite + liquid 83. For a series of points in a line and
at zero height which are affected by
(C) Fayalite + liquid
the gravitational attraction exerted
(D) Forsterite + fayalite + liquid a buried sphere of density contrast
79. Presence of stishovite in a rock 1.5 gm/cm3, the anomaly versus
horizontal distance curve has a
indicates :
maximum of 4.526 mGal and a point
(A) Vicinity of divergent plate of inflexion at 250 m from
boundary maximum. Calculate the depth of the
point :
(B) Vicinity of volcanic cadlera
(A) 500 meters
(C) Vicinity of subduction zone
(B) 700 meters
(D) Vicinity of meteoric impact (C) 400 meters
crater (D) 800 meters
13 [P.T.O.

84. A building is to be founded on a clay 87. The atmosphere is positively
stratum. The water table is charged with respect to the earth
practically at ground surface level. surface during :
Laboratory test shows that the unit (A) Thunderstorm activity
weight of the soil is r = 20 kN/m3 (B) Rainfall event
and classify the soil as a firm clay. (C) Fair weather condition
The uniaxial compressive strength (D) Lightning activity
is qu = 150 kN/m2. Supposing that
88. In the momentum equation, the
the footing will be square, 2 m wide ratio of the advective term to the
and the foundation depth will be rotational term is the :
2 m below the ground surface. (A) Prandtl number
Calculate the ultimate bearing
(B) Reynold number
capacity :
(C) Richardson number
(A) 304.8 kPa
(D) Rossby number
(B) 403.9 kPa
89. Rossby waves depend
(C) 700.9 kPa fundamentally upon the variation of
(D) 502.6 kPa the Coriolis parameter with latitude,
85. ................... terrains are represented known as :
as deep crustal rocks that have been (A) Alfa effect
technically exhumed of hot and dry (B) Gamma effect
magmatism. (C) Beta effect
(A) Greenstone (D) Lambda effect
(B) Granulite 90. Arrange the following formations
(C) Gneiss into a north to south cross-section
(D) Metasedimentary trend occurring within Central
Indian Tectonic Zone :
86. Ionization from cosmic rays and
terrestrial sources produce small (a) Son-Narmada South fault
ions which makes the Earth (b) Sausar group
Atmosphere : (c) Mahakoshar group
(A) Weakly electrically conductive (d) Betul group
(B) Strongly electrically conductive (A) (a)—(b)—(c)—(d)
(C) Electrically neutral (B) (a)—(c)—(b)—(d)
(D) Moderately electrically (C) (d)—(b)—(a)—(c)
conductive (D) (c)—(a)—(d)—(b)

14

91. The cycle of Sunspot Maxima having 96. The minimum temperature over
the same polarity is referred to as tropical station occurs at :
the : (A) Before sunrise
(A) 11-year cycle (B) After sunrise
(B) 22-year cycle (C) After sunset
(C) 7-year cycle (D) Midnight
(D) 5-year cycle 97. Richardson number is the Ratio
92. Temperature Kelvin scale of :
contains : (A) Stability and vertical wind
(A) Negative numbers shear
(B) No positive numbers (B) Stability and square of the
(C) No negative numbers vertical wind shear
(D) Zero (C) Stability and Coriolis force
93. Entropy ( ) and potential (D) Vertical wind shear and Coriolis
temperature ( ) are related by the force
relation : 98. The angular velocity of the Earth
is , then the vorticity of the earth
(A) = Cptn + constant
is :
(B) = C pe (A) (B) 2
(C) = Cp + constant (C) 3 (D) 1/2
(D) = Cp sin + constant 99. d and are the dry adiabatic lapse
rate and environmental lapse rate
94. The peak radiation from the sun is
respectively. An unsaturated Air
at 0.48 micrometer. What is the
parcel is said to unstable, if :
corresponding temperature of the
sun ? (A) d (B) d
(A) 6000 ºK (C) d (D) d 10
(B) 4897 ºK 100. The total potential energy =
(C) 3897 ºK (A) Internal Energy + Kinetic
(D) 273 ºK Energy
95. In an isentropic process there is no (B) Internal Energy + Gravitational
change in : Potential Energy
(A) Temperature (C) Internal Energy – Kinetic
Energy
(B) Heat
(D) Kinetic Energy + Gravitational
(C) Volume
Potential Energy
(D) Pressure
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