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P.G ENTRANCE EXAMINATION~2016
SUBJECT: GEOLOGY
Roll Number
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Signature of the Invigilator
Signature of the Candidate
1
Date
,
Date
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Full Marks : 100
:
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Tune: 2 hours
INSTRUCTIONS
1.
Fill in your Roll No. in appropriate space provided in the question Booklet and OMR
Answer Sheet. Fill in the subject code in the place provided in the OMRAnswer Sheet.
2.
Answer all questions, Darken the answers (A, B, C, D) in Blue or Black ball point pen.
3.
Unless otherwise indicated, the questions are of equal value.
4.
There is negative marking in the entrance test. For each wrong answer 0·25 marks will be
deducted.
s.
The questions are of multiple choice types. Darken the most appropriate answer out of
four choices (A), (B), (C) and (0) given for the respective question on the answer sheet as
shown in the example below.
, .,
~,
I
,
Example:
Question 1 : Eight multiplied by eight is
(A) 32
(B) 64
(C) 48 .
(0) 56
Answer Sheet: .
Important:
(A).
(B).
o
•
(C)
(D)
0
0
Please write the answer exactly the way it is shown above in the example.
Writing more than one answer will be treated as wrong/cancelled.
Space for rough work is given at the end of this bl!,oklet.
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GEOLOGY
1.
2.
3.
4.
5.
6.
7.
Silicate Minerals can be identified through:
(A) Transmitted light microscope
(B) XRD
(C) Reflected light microscope
(D) Both 'N and 'B'
Which system has maximum no. of symmetry elements :
(A) Hexagonal
(B) Trigonal
(C) Cubic
(D) Orthorhombic
Which of this mineral shows variable hardness
(A) Barite
(B) Sillimanite
(C) Kyanite
(D) Enstatite
Which of this mineral shows pleochroism:
(A) Quartz
(B) Diopside
(C) Caclite
(D) Hornblende
Which of this mineral shows play of colours:
(A) Labradorite.
(B) Enstatite
(C) Quartz
(D) Andalusite
Enstatite of pyroxene group is :
(A) Ca-bearing
(B) Li-bearing
(C) Mg-bearing
(D) Na-bearing
Which of the following has a vertical axis of six fold symmetry:
(A) Garnet
(B) Beryl
(C) Sulphur
(D) Barite
( 1)
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(Turn Over)
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GEOL
8.
9.
Tephroite ofOlivine group is:
(A) Mg-bearing
(B) Fe-bearing
(C) Ca-bearing
(D) Mn-bearing
Rocks that are dominantly composed of quartz can be classified on the basis one
of the following diagrams:
(A) ACF
(B) Harker
(C) AFM
(D) QAP
10. The simplest of all silicate structures is that of
(A) Orthosilicates
(B) Sorosilicates
(C) Metasilicates
(D) Ionosilicates
11. Which garnet is rarely found:
(A) Spessartine
(B) Pyrope
(C) Almandine
(D) Grossularite
(E) Uvarovite
12. Which mineral shows change of relief:
(A) Oxide
(B) Silicate
(C) Carbonate
(D) Sulphide
13. Which of the following is not a Silicate
(A) Sillimanite
(B) Spessartine
(C) Sphalerite
. (D) Spodumine
14. Which mineral shows cross-hatched twinning:
(A) Calcite
(B) Microcline
(C) Albite
(D) Orthoclase
(2 )
( Continued)
GEOL
.eh of the following shows pillow structure
A) Dunite
(B) Granite
(C) Spilite
(D) Pegmatite
16. Choose the basic rock
(A) Rhyolite
(B) Dacite
(C) Granodiorite
(D) None of'A', 'B' and 'C'
(E). All
«:«. 'B' and 'C'
17. Which one of the following illustrates "simultaneous crystallization" 1
(A) Porohyritic texture
(B) Acicular texture
(C) Graphic texture
(D) Poikilitic texture
18. Which one of the following has maximum Si02 content:
(A) Dunite
(B) Gabbro
(C) Synite
(D) Granite
19~Which is the volcanic equivalent of Granite
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(A) Basalt
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(B) Rhyloite
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(C) Dacite
(D) Phonolite
20. In which one of the following rocks, carbonate minerals predominates:
(A) Shale
(B) Arkose
(C) Sandstone
(D) Dolomite
21. Which of the following term is used when the grain size is below 11256 mm:
CA) Gravel
(B) Clay
(C) Silt
( 3 )
(D) Sand
(Turn Over)
GEOL
22. Mylonites are product of which type of metamorphism :
(A) Contact
(B) Static
(C) Catac1astic
(D) Both by (A) and (B)
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23. Which one of the following is the mineral of'highest zone of metamorphism :
(A) Sturolite
(B) Almandine
(C) Chlorite
(D) Kyanite
24. Which one of the following term is used for gneiss derived from sedimentary
rocks:
(A) Gnessic Granite
(B) Granite Gneiss
(C) Orthogneiss
(D) Paragneiss
25. Hydroxyl bearing minerals are essentially absent in the rocks belonging to :
(A) Homfels facies
(B) Granulite facies
(C) Eclogite facies
(D) Zeolite facies
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26. The water that is entrapped in sedimentary rocks during their formation is called:
(A) Plutonic water
(B) Underground water
(C) Vadose water
(D) Connate water
27. Decan Basalt is not reported from which of the following State of India
(A) Odisha
(B) Madhya Pradesh
(C) Gujarat
(D) Maharastra
28. Oil in Digboi field is found in :
(A) Sylhet Formation
(B) Disang Formation
(C) Tipam Formation
(D) JaintiaFormation
(4 )
( Continued)
CEOL
•
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Id's more than half of oil comes from:
(B) Sandstone
) Carbonate rocks
(0) Shale
(C) Siltstone and grit
3 . Lignite in India is available at :
(A) Talcher
(B) Neyvelli
(C) Raniganj
(D) Singrauli
31. 'Durain' in Coal is considered as:
(A) Mineral
(B) Maceral
(C) Lithotype
(0) All of 'N, 'B' and 'C'
32. Gondwana coal in Odisha belongs to which age:
(A) Permian
(B) Tertiary
(C) Proterozoic
(0) Cambrian
33. The high ash content in coal is due to :
(A) Large volume of silicate minerals
(B) Large volume of ore minerals
(C) Large volume ofmacerals
(0) All of 'N, ·'B' and 'C'
34. Fly ash is generated from:
(A) Ferro-manganese plant
(B) Blast furnace
(C) Thermal power plant
(0) Sponge iron plant
35. Which of these Trilobites was blind:
(A) Olenellus
(B) Olenus
(C) Agnostus
(0) Asaphus
( 5 )
(Turn Over)
GEOL
36. Name the Gastropod whose spires are almost overlapped by the lastwhorl :
(A) Physa
(B) Murex
(C) Vivaparus
(D) Cypraea
37. Gangamopteris is distinguished from Glossopteris by:
(A) Presence of mid-rib
(B) Presence of venation
(C) Presence of spines
(0) None of 'A', 'B' and '~'
38. Which of the following Molluscas are entirely marine:
(A) Cephalopods
(B) Gasteropods
(C) Pelcypods
(D) None of 'A', 'B' and 'C' .
39. Gastropods shows:
(A) Bilateral symmetry
(B) Radial symmetry
(C) Asymmetry
(D) Biradial symmetry
40., Echinoids were evolved during:
(A) Ordovician
(B) Cambrian
(C) Devonian
(D) Silurian
41., 'Petrification' is a type of fossilization where:
(A) Original form is preserved
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(B) Only the hard parts are preserved
(C) Entire organism is preserved
(D) Original form and structure are preserved
42. Most of the shallow focus range earthquakes are caused due to:
(A) Thrust faulting
(B) Gravity faulting
(C) Reverse faulting
(D) Normal faulting
(6 )
( Continued)
GEOL
e Plates' in the Plate Tectonics concept are made up of:
) Continental crust only
CB) Continental crust, oceanic crust and outer parts
(C) Both Continental and oceanic crust
(0) Oceanic crust only
44. Deltas are example of:
(A) Zeugogeosynclines
(B) Autogeosynclines
(C) Exogeosynclines
(D) Taphrogeosynclines
45. Mention during which period most of the physiographic
shaped:
features of India were
(A) Proterozoic
(B) Paleaozoic
(C) Mesozoic
(D) Cenozoic
46. Mid oceanic ridges are characterized by :
(A) High heat flow, deep-focus earthquakes and positive gravity anomalies
(B) High heat flow, shallow-focus earthquakes and positive gravity anomalies
(C) High heat flow, shallow-focus earthquakes and negative gravity anomalies
(D) Low heat flow, deep-focus earthquakes and negative gravity anomalies
47. Important characteristic rocks of the Island-Arc Systems ate:
(A) Andesite
(B) Granodiorite
(C) Blue Schist
(D) Basalt
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48. As per doctrine ofIsostasy
a region oflower density shows:
(A) Negativeanomaly
(B) Mass deficiency
(C) Positive anomaly
•
(7 )
(D) Mass excess
(Turn Over)
GEOL
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49. Beta diagrams and Pi diagrams are used for analyzing :
,.1
(B) Faults
(A) Folds
(C) Joints
(D) Both of 'A'and 'B'
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50. In Chevron fold:
(A) Crest is broad and flat
(B) Limbs are nearly horizontal
(C) Hinges are sharp and angular
(D) The axes plunges in the dip direction of axial plane
51. If the rake of the net slip of a fault is 90°, the faultmay'be
a:
(A) Strike-slip fault
(B) Dip-slip fault
(C) Diagonal-slip fault
(D) Tear fault
52. The property of the rocks whereby they break along approximately
parallel
surfaces is termed :
(A) Bedded fissility
(B) Rock cleavage
(C) Lineation
(D) Foliation
53. A limited area of an exposure in which older rocks are surro.unded by younger
rocks is known as an :
(A) Overlap
(B) Inlier
(C) Outlier
(D)Offiap
54. Intrusive igneous contacts are indicative of:
(A) Angular unconformity
(B) Disconfirmity
(C) Non-confirmity
(D) Blended unconformity
55. Joints which are developed perpendicular to the fold axes are called:
(A) Extension joints
(B) Released joints
(C) Tensionjoints
(D) Shear joints
( 8 )
( Continued)'
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GEOL
6. The amount of dip measured along the strike directions of a vertical bed is always:
. (B) 60°
(D) Zero
57. In the case of normal fault, the hade is towards:
(A) Upthrown side
(B) Downthrown side
(C) Eitherdownthrownorupthrownside
(D) None of 'A', 'B'and 'C'
5S. Which of the following are the folds with parallel arrangements of limbs:
(A) Reclined folds
(B) Inverted folds
(C) Isoclinal folds
(D) Symmetrical folds
59. A synform may be described as a :
(A) Downward facing syncline
(B) Downward facing anticline
(C) Upward facing syncline
(D) Upward facing anticline
60. Which of the following has a quaquaversal dip:
(A) Depression
(B) Plateau
(C) Domes
(D) Basin
61. When two sets of beds separated by an unconformity are not parrallel to each other,
it is described as :
(A) Angular unconformity
(B) Disconformity
(C) Non-conformity
(0) Blended unconformity
62. When anion and cations of similar size and in same numbers crystallizes in similar
type of structure, the phenomenon is known as :
(A) Diadochy
(B) Polymorphism
(C) Isomorphism
(0) Eutectic crystallization .
(9 )
( TurnOver)
GEOL
63. Serpentine alters from olivine on the addition of :
(A) ~O
(B) Si02
(C) ~O, Si02 and CO2
CD) Both of 'A' and 'B'
64. When polymorphism occurs in elements, it is described as :
(A) Paramorphism
(B) Enantiotropy
(C) Monotropy
(D) Allotropy
65. The feldspathoid mineral 'Nepheline' is isomorphous with :
(A) High quartz
(B) High tridymite
(C) High cryistobalite
(D) High Leucite
66. Iron is known as a __
element.
(A) Lithophile
(B) Chalcophile
(C) Siderophile
(D) Atmophile
67. Which of the following features are the most useful in the analysis of sedimentary
environments ?
(A) Colour of the sediments
(B) Grain size of the sediments
(C) Primary structures
(D) Secondary structure
68. Which one of the following is a manganese mineral:
(A) Marcasite
(B) Magnetite
(C) Manganite
(D) Millerite
69. Which of the following is a Gemstone:
(A)
(B)
(C)
(D)
(E)
Ruby
Cat's eye
Shellite
Pyrite
Both 'A' and 'B'
( 10 )
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( Continued)
GEOL
70. Which one is not a mineral of iron:
(A) Hematite
(B) Goethite
(C) Chalcopyrite
(D) Siderite
(B) Magnetite
(C) Pyrolusite
(D) Chromite
71. Find the odd one out:
(A) Spessartine
72. Which of the following is a Zinc carbonate:
(A) Rhodocrosite
(B) Magnesite
(C) Dolomite
(D) Smithsonite
13. Which one of the following js not a lead mineral:
(A) Galena
(B) Anglesite
(C) Sphalerite
(D) Cerrusite
74. The chemical formula of Malachite is:
(A) CuC03" 2Cu(OH)2
(B) 2CuC03" 2Cu(OH)2
(C) 2CuC03" CU(OH)2
(D) CuC03" CU(OH)2
7S. The element used as path finder of Gold is:
(A) Platinum
(B) Antimony
(C) Arsenic
(D) Mercury
76. Placer deposits are formed as a result of:
(A) Mechanical concentration
(B) Residual liquid segregation
(C) Residual concentration
(D) All of 'A', 'B' and 'C'
77. Bauxite forms through which process of formation:
(A) Mechanical concentration
(B) Residual concentration
(C) Magnetic segregation
(D) Contact metasomatism
( 11 )
(Turn Over)
GEOL
78. The topmost producer of Chromite in the country is
(A) Bihar
(B) MP
(C) Odisha
(D) Nagaland
(E) Andhra Pradesh
79. Chromium is used in which of the following industries
(A) Metallurgical
(B) Chemical
(C) Refractory
(D) All of 'A', 'B' and 'C'
80. Which of the following is a copper oxide mineral:
(A) Cuprite
(B) Chalcocite
(C) Chalcopyrite
(0) Covellite
81. The successive overlapping in aerial photographs to cover a common area is about:
(A) 20%
(B) 40%
(C) 60%
(0) 80%
82. Aerial photographs are studied in three dimensions by :
(A) Stereograph
(B) Streoscope
(C) Theodolite
(0) Streophone
83. Which one is the litho-stratigraphic
(A) Epoch
unit:
(B) System
(C) Formation
(0) Stage
84. Mapable assemblages of strata are called:
(A) Time-units
(B) Time-rock units
(C) .Rock-units
(0) None of the above'
( 12 )
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( Continued)
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GEOL
r,
85. How many diamondiferous unconformities are there i~ Vmdhyans :
(B) Three
(A) Two
(C) Four
(D) Five
86. Which of the following are the strongest criteria for superposition ?
(A) Graded bedding
(B) Cross bedding
.
(C) Convolute bedding
(D) Index fossils
(E) Drag folds
87. Sloping surfaces of valley upon which dam rests is known as :
(A) Pier
(B) Abutment
(C) Side wall
(D) Relief surface
88. Water on the up-stream side of the dam is:
(A) Surface water
(B) Reservoir water
(C) Perched water
(D) Tail water
89. Where the river section is wide and the foundation is unsound, which type of Dam
is preferred :
(A) Multiple arch Dam
(B) Gravity Dam
(C) EmbankmentDam
(D) Arch Dam
90. Grouting is considered to be :
(A) A process of determining the coefficient or water saturation of a material
(B) A process of lining of tunnels to support the pressure exerted by the material
in which the tunnel is excavated
(C) The injection of suitable material into the earth's crust to seal any open fissures
(D) None of the above
( 13 )
(Turn Over)
GEOL
91. An impertneable formation that contains but does transmits water Is called :
(A) Aquifer
(B) Aquiclude
(C) Aquifuge
(D) Aquitard
92. Which of the geophysical methodis best suited for ground water exploration:
(A) Seismic refraction method
(B) Gravity method
(C) Magnetic method
(D) Resistivity method
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93. The units of Permeability is known as :
(A) Stokes
(C) Darcy
(B) Poise
(D) Weber
, 94. Most of the aquifers consist of :
(A) Limestones
(B) Sandstones
(C) Sands and Gravels
(D) Porous breccias and conglomerates
95. Diamond drilling can be used to bore holes in :
(A) Horizontal direction only
(B) Vertical direction only
(C) Horizontal and vertical directions
(D) In any directions
96. Which type of sampling method is considered when the exposure of outcrops
is scarce
(A) Trenching
(B) Drilling
(C) Well-logging
(D) Bulk sampling
97. Geochemical soil anomalies are mostly due to :
(A) Heavy mineral accumulation
(B) Residual accumulation
(C) Hydrothermal accumulation
(D) Selective concentration
( 14 )
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( Continued)
GEOL
98. If the spacing between the various contour lines is very narrow, it indicates the
presence of a :
(A) Almost horizontal terrain
(B) Gently dipping terrain
(C) Steeply dipping terrain
(D) None of the above
99. The intersection of contour lines with the bedding plane indicates the presence
of a
(A) Horizontal bed
(B) Vertical bed
(C) Dippingbed
(D) None of the above
100. Coning and quartering is a method of:
(A) Beneficiation
(B) Sampling
(C) Mineral characterization
(D) Metal extraction
( 15 )
RC-300