Saturday, December 25, 2010

GEOSCIENCE MCQS

1.Extrusive rock of granitic composition is called
a. andesite b. rhyolite
c. trachyte d. diorite
2. During deposition, inter-granular space between particles trap water. This water is designated as
a. meteoric water b. connate water
c. juvenile water d. sediment water
3. A sillimanite bearing metamorphic rock common in the granulite terrains is called
a. charnockite b. khondalite
c. aplite d. eclogite
4.Streak of some minerals is often diagnostic. Cherry red streak is characteristic of
a. azurte b. malachite
c. hematite d. magnetite
5. Refractory bricks are very important material used in furnaces. Many refractory source materials are of geologic origin. One such is
a. magnesite b. Gypsum
c. anhydrite d. barite
6. Bauxite, an ore of aluminum, is formed by a geological process. It is called
a. beach placer b. supergene enrichment
c, magmatic differentiation d. residual concentration
7. Pleochroism is a property of minerals in thin sections and some are diagnostic. From the list pick a non-pleochroic mineral.
a. muscovite b. biotite
c. phlogopite d. hornblende
8. In minerals forming in orthorhombic system, the vibration directions X, Y and Z
a. coincide with the crystallographic axes b. only X coincides with a crystallographic axis
c. only Z coincides with one of the axes d. Y always coincides with the b axis
9. In biogenous deposits, radiolarian and diatomaceous oozes are always
a. calcareous b. chitinous
c. siliceous d. phosphatic
10. Style of extinction of quartz has been handy in identifying the nature of provenance rocks.
For example wavy extinction is indicative of
a. sedimentary source rocks b. igneous source rocks
c. metamorphic source rocks d. volcanic source rocks
11.From the following list select an un-stratified sedimentary deposit.
a. Shale b. Glacial varve
c. Glacial till d. Turbidite
12.The Indian shoreline is quite long and it measures about
a. 3100 km b. 4100 km
c. 5100 km d. 6100 km
13.Limestone caves are characterized by carbonate deposits formed by solution and re-precipitation process. One such deposit growing on the floor upwards is called
a.Stalactite b. stalagmite
c. cave pearl d. malachite
14. The Quilon formation of Kerala has a geologic age of
a. mid-miocene b. Mio-pliocene
c. Paleocene d. Pleistocene
15. From the following list of minerals pick the one most resistant to weathering process
a. muscovite b. biotite
c. quartz d. olivine
16.Pick a carbonate mineral from the list below
a. cat-toothspar b. satinspar
c. Iceland spar d. dogtoothspar
17.Basic unit In the lithostratigraphic classification is
a. group b. formation
c. member d. bed
18.Choose the correctly ordered list of varieties of coal in terms of increasing heat content
a. peat-lignite-anthracite b.. lignite-antracite-peat
c. anthracite-peat-lignite d. peat-anthracite-lignite
19.A generic term used to describe a gravelly sediment is
a. arenaceous sediment b. rudaceous sediment
c. argillaceous sediment c. lutaceous sediment
20. Among a host of methods used in exploration, oil industry prefers:
a. Seismic refraction b. seismic reflection
b. Electrical sounding d. gravity methods
21.In a geologic map, truncation of a set of beds by another set denotes
a. an unconformity b. plunging anticline
c. recumbent fold d. normal fault
22.Roughly annular distribution of outcrops of strata in a geologic map is suggestive of a
a. dome b. syncline
c. anticline d. volcanic cone
23.In the list of minerals below choose the mineral commercially referred as
Heavy spar
a. calcite b. dolomite
c. barites d. aragonite
24.Thin section of tourmaline cut parallel to c-axis, under cross polars shows
a. isotropism b. parallel extinction
c. cross like arrangement of inclusions
d. linear arrangement of inclusions
25.Mineral rhodochrosite is
a. oxide of Mn b. silicate of Mn
c. carbonate of Mn d. sulphide of Mn
26.Chromite, a mineral of element Cr, is
a. a sulphide b. a sulphate
c. an oxide d. a silicate
27.The gondite of India are uniquely associated with
a. Mn deposits b. Cr deposits
c. Fe deposits d. Zn deposits
28.The geological age of lignite bearing sedimentary deposits of Neyveli is
a. Eoccene b. Paleocene
c. Mio-Pliocene d. Oligocene
29.The formation occurring at the base of cretaceous rocks of Trichnapally is
a. Uttathur b. Ninyur
c. Trichnapally d. Ariyalur
30.Nine planes, 13 axes and a centre of symmetry characterizes
a.normal class of hexagonal system b.normal class of trigonal system
c.normal class of cubic system d.normal class of orthorhombic system.
31.Mineral almandine crystallizes in the
a. cubic system b. tetragonal system
c. triclinic system d. orthorhombic system
32..Marble is a product of
a. thermal metamorphism b. dynamic metamorphism
c. dynamo-thermal metamorphism d. ctaclastic metamorphism
33. In respect of earthquakes, the point of origin in the lithosphere is called
a. epicenter b. epocentre
c. focus d. hypocentre.
34. Iceland, in north Atlantic is very special geologically as it is
a. on an island arc b. on midoceanic ridge
c. an extinct volcano d. a locus of a huge Mn deposit
35. Mohorovicic discontinuity separates
a. crust from the mantle b. mantle and core
c. oceanic crust from inner core d. asthenosphere and mesosphere
36. Among the many geologic structures, topographic expression is most striking in respect of
a. folds b. faults
c. joints d. domes.
37. While calculating axial ratios of a crystal, one of the axis in the following list is taken as unity
a., a axis b. b axis
c. c axis d. a1 axis
38. Trapezohedron is a form that occurs in following crystal system
a. hexagonal system b. trigonal system
c. tetragonal system d. all of the above
39. In triclinic system all forms have only
a. 2 faces b. 4 faces
c. 3 faces d. six faces
40. Among the seven crystal systems, all classes do have a centre of symmetry anyway. But how many are they?
a.32 b.24
c.21 d.15
41.Highest level of substitution of Al for Si occurs in
a. orthoclase b. microcline
c. albite d. anorthite
42.Play of colours, a mineral property is caused by
a. low dispersion b. high dispersion
c. low interference d. high interference
43. From the minerals in the list below choose the one with does not show needle like habit.
a. wavellite b. sillimanite
c. tourmaline d. rutile
44. Given appropriate conditions mineral anhydrite can change to gypsum by
a. chemical by acquiring elements b. by loosing chemical elements
c. by exchanging chemical elements d. none of the above processes
45. Some minerals show a variation of physical properties along crystallographic axes. Say for e.g., high hardness is exhibited by mineral kyanite parallel to
a. c axis b. b axis
c. a axis d. b and c axes
46. Principal difference between graphite and diamond is
a. composition b. hardness
c. density d. structure
47. One of the minerals in the following list contains Fe and Ti
a. Rutile b. anatase
c. brookite d. ilmenite
48. Birefringence is a property of anisotropic minerals. Calcite is mineral showing very high birefringence. Under the microscope this manifests as
a. twinning b. pleochroism
c. twinkling d. glittering
49. Many anisotropic minerals under the microscope show parallel extinction if section is cut parallel to,
a. crystallographic axes.
b. crystallographic axes in monoclinic or triclinic systems
c. crystallographic axes in hexagonal, and orthorhombic systems
d. crystallographic axes in tetragonal, hexagonal and orthorhombic systems
50. Minerals show dichroism if they crystallized in
a. cubic system b. tetragonal system
c. monoclinic system d. orthorhombic system
51. Under cross polars, sections of minerals crystallizing in hexagonal system appear to be isotropic if
a. section lies on the c-axis b. section is at angle to c-axis
c. c-axis intersects section at right angles d. if section is cut perpendicular to a1-axis
52. In the list of minerals indicated below which one has the least dispersion?
a. fluorite b. diamond
c. calcite d. quartz
53. Cross hatched appearance of microcline under cross polars is caused by
a. polysynthetic twinning on albite law b. twinning on pericline law
c. 2 way twinning on albite law d. two-way twinning on albite and pericline laws
54. Basal sections of hornblende shows two sets of intersecting clevages making angles of
a. 56 and 124 deg b. 58 and 122 deg
c. 92 and 88 deg d. 110 and 70 deg
55. Among all the elements appearing in the periodic chart, natural elements are only
a. 92 b. 96
c.. 102 d.106
56. The most abundant silicate mineral in the crustal rocks is
a. quartz b. orthoclase
c. plagioclase d. kaolinite
57.. The earth derives most of its heat from the decay of
a. uranium 238 b. uranium 236
c. uranium 232 d. uranium235
58. Crustal abundance of oxygen by volume is about
a.. 94% b. 63%
c.. 57% d. 80%
59.. The texture of rocks formed by eutectic crystallization is called
a. graphic texture b. corona texture
c. annular texture d. overgrowth texture
60. In a binary phase diagram, liquidous, an down-curving line, indicates
a. crystallizing composition of solid from melt
b. composition of the liquid corresponding to crystals that form
c.. changing temperature of the melt d. continuously changing pressure of the melt
61. In a hill, a series of horizontal beds, are exposed. The bed that occurs at the summit of the hill is
a. oldest in age b. intermediate in age
c. youngest in age d. need fossil evidence to fix age.
62. A contour map showing thickness of beds is
a. isopach map b. isohyetal map
c. isovel map d. isogyric map
63. In some faults the stratigraphic throw is measured in miles. Pick such a fault from the attached list
a. step fault b. gravity fault
c. overthrust d. underthrust
64. Low amplitude minor folds seen in folded sequences are reliable signatures of major structure. Then such minor folds are described as
a. drag folds b. small folds
c. pucker folds d. crease folds
65. A synclinal hill is an example of
a. outlier b.inlier
c. ooflap c. onlap
66. In a geologic map the key bed – volcanic ash deposit- shows a zig-zag outcrop. This pattern of outcrop is caused by
a. a synclinal fold b. a symmetric fold
c. a plunging fold d. isoclinal fold
67. If the contact of a sedimentary bed rigorously follows the contours of a geologic map, the outcrop pattern suggests
a. horizontal bed b. low angle thrust fault
c. near vertical synclinal axis. d. near vertical anticlinal axis
68. Outcrop of a dolerite dike, in a geologic map, cuts through contours and river valleys along a straight line.
a. dike is vertically dipping b. intrusive dolerite dikes always do so
c. it is a growing intrusive d. all of the above
69. In a geologic map, beds are repeated like 1-2-3-2-1, which suggests
a. folded sequence b. faulted sequence
c. cyclic deposition d. all of the above
70. Porphyritic texture in igneous rocks suggest
a. two rates of cooling of magma b. abundance of one phase over the rest
c. phenocrysts formed at site of emplacement
d. ground mass formed in the chamber
71. Relative motion of blocks, across a fault plane can be recognized by smoothness of the fault plane
a. while moving palm of hand in the direction of motion.
b. while moving palm of hand against direction of motion
c. while moving the palm along the strike of fault plane
d. all of the above
72. A property of rocks whereby they break along parallel surfaces is called
a. bedding fissility b. rock cleavage
c. lineation d. foliation
73. Clevage and bedding relationship is used to decipher major folds. If the cleavage dips more gently than bedding it indicates
a. symmetrical folds b. asymmetrical folds
c. overturned folds d. isoclinal folds
74. Variability of elevation of a terrain are pictured by contour lines. In a map closely spaced contours are preceeded and followed by wider spacing, it indicates
a. monocline b. gentler surface
c.. anticline d. syncline.
75. In a geological map, if a key bed shows an ellipsoidal outcrop, it may be indicative of
a. doubly plunging fold b. an asymmetrical fold
c. salt dome d. laccolith
76. By the process Petrifaction, an organism is preserved
a. with its internal structure and morphological features
b. only with the morphological features
c. only the internal structures are preserved
d. only part of the internal structures are preserved.
77. Most suitable environment for preservation of fossils is
a. lacustrine b. marine
c. fluvial d. paludal
78. From the following list pick the person who is considered to be the father of paleontology
a. Lamarck b. James Hutton
c. William Smith d. Charles Lyell
79. Study of trace fossils is known as
a. paleo-ecology b.Synecology
c. Icthyology d. Ichnology
80. Fauna composed of active swimmers are known as
a. Plankton b. nekton
c. benthos d. pelagic
81. Foraminifers belong to the class
a. sarcodina b. astorhiza
c. flagellate d. mastigophora
82. Nummulites were chief rock builders during
a. Silurian b. Devonian
c. Eocene d. cretaceous
83. Reef building coral prefer
a. warmer waters b. cooler waters
c. high salinity d. terrestrial detritus
84. What is the scientific name of sea urchins?
a. diatoms b. echinoids
c. conodonts d. brachiopods
85. Synonym of lamellibranches is
a. pelecypod b.alcyonaria
c. zooantharia d. rugosa
86 Earliest pelecypod appeared in
a. lower Ordovician b. Upper Devonian
c. early Carboniferous d. lower Devonian
87. Changes in shape of the shell as well as coiling are the result of
a. free swimming nature b. .crawling nature
c. sessile habit d. burrowing habit
88. The age of the brachiopod syringothyris is
a. Ordovician b. Silurian
c. Devonian d. carboniferous
89 Which one of the following shows sinistral coiling?
a. murex b. conous
c. physa d. bellerophon
90. Ammonoids became extinct during
a. upper carboniferous b. late cretaceous
c. upper cretaceous d. Eocene
91. In ammonoids, goniatites suture reached its peak during
a. lower carboniferous b. .Permian
c. middle carboniferous d. upper carboniferous
92. In India most evolved dinosaur remains are associated with
a. bagh beds b. Lameta beds
c. Umaria marine beds d. Bap beds
93. Vertebraria, a plant fossil,
a. belongs to conifers b. belongs to cycads
c. is stem of glossopteris d. is stem of gangamopteris
94. First dinosaurs appeared during
a. early triassic b. late Triassic
c. early Jurassic d. early cretaceous
95. Which era is called age of mammals?
a. Azoic b. Paleozoic
c. Cenozoic d. Mesozoic
96 Jawed fishes appeared first during
a. Cambrian b. Ordovician
c. Silurian d. Devonian
97. Neogene period includes
a. Paleocene and Eocene b. Eocene and Oligocene
c. Oligocene, Miocene and Pliocene d. Miocene and Pliocene
98. From the list pick the name which later was equated with father of stratigraphy
a. Charles Leyell b. John Lehman
c. Werner d. James Hutton
99. In the following list which term stands for basic unit of geologic time
a. Period b. eon
c. era d. epoch
100. Zone represents
a. lithostratigraphic unit b. biostratigraphic unit
c. Chronostratigraphic unit d. all of the above
101. First land plants appeared during
a. Silurian b. Ordovician
c. Devonian d. carboniferous
102 Type area of Sausar group is in
a. Western Rajasthan b. Nagpur, Ma
c. Sighbhum, Bihar d. Chindwara, MP
103. Plan view of Cuddapah basin is
a. Cresentic b. linear
c. curved d. curvelinear
104. Dalma traps of volcanic rocks are found to occur on top of
a. Sausar-sakoli series b. iron ore series
c. Railo series d. Kolhan series
105. In the list given below, which group of rocks is intensely folded?
a. Semri group b. Kaimur group
c. Rewa group d. Bhander group
106. Commonest lithology in the Vindhyan super group is
a. Limestone b. sandstone
c. shale d. Basalt flows
107. Majority of rock formations of Gondwana have formed under
a. fluviatile conditions b. glacial conditions
c. lacustrine conditions d. nearshore marine conditions
108. The great cenomanian transgression occurred during
a. cretaceous b. Triassic
c. Jurassic d. Paleocene
109. The main boundary fault separates
a. upper Vindhyans and Aravallis b.Siwaliks and Aravallis
c. Siwaliks and Tertiaries d. Siwaliks and Budelkhad granites
110. Affinity of inter-trappeans are
a. marine b. lacustrine
c. transitional d. volcanic
111. Folded strata show characteristic joints. Those that are perpendicular to the fold axis are called
a. Tension joints b. shear joints
c. extension joints d. release joints
112.Pahoehoe is a type of
a. meteorite b. stratovocano
c. ropy lava d. blocky lava
113.Gneissic rocks common in the shield areas. A gneiss formed out of igneous rocks is designated as:
a. orthogneiss b. metagneiss
c. paragneiss d. polygneiss
114. In the ore deposits formed of supergene enrichment in a tropical climate in the vadose zone is characterized by
a. sulphide minerals b. Sulphate mineral
c. oxide minerals d. carbonates
115. China clay deposits of Singhbhum dist. Of Bihar, one of the most mineralized terrains in the nation, is formed by
a. residual concentration b. mechanical concentration
c. gravity concentration d. hydrodynamic concentration
116.Evidence of volcanic activity in the Cuddapah time is evinced by lava associated with
a. cumbum formation b. Tadapatri formation
c. Nagari formation d. Vempalli formation
117.Rocks of syenite group are characterized by the presence of
a. quartz b. nepheline
c. alkali feldspar d. k-felspar
118.Mineral composition of gabbro is approximately
a. hornblende and andesine b. labradorite and clinopyroxene
c. orthpyroxene and labrodorite d. olivine and calcic plagioclase
119.Igneous rocks do occur in glassy state too. From the list pick out the glass equivalent of an acid magma.
a. obsidian b. tektite
c. tachylite d. rhyolite
120.CIPW classification of igneous rocks is essentially one based on
a. natural mineral assemblage b. proxy minerals
c. rock texture d. texture and fabric
121. Igneous rocks showing aphanitic texture suggest
a. quick and fast cooling of magma, b. two stage cooling of magma
c, slow cooling of the magma d. all of the above
122.From the following list of rocks pick a mono-mineralic rock.
a. dacite b.dunite
c. trachyte d. andesite
123.Most abundant mineral in anorthosite is
a. orthoclase b. plagioclase
c. pyroxene d. amphibole
124.From the list of rocks given below pick the one with lowest silica content.
a. rhyolite b. trachyte
c. phonolite d. nepheline syenite
125. Characteristic feature of a turbidite is the association of
a. couplet of lutaceous and arenaceous layers b. graded bed resting on an erosional surface
c. sole marks and tool marks d. all of the above
126. Texturally the chief end members are
a. gravel, sand and mud b. granule, pebble and cobble
c. silt, clay and sand d. granule, sand and mud
127. Modern stromatolites uniquely occur in
a. subtidal zone b. intertidal zone
c. supratidal zone d. all of the above
128. Sediments are converted to rocks by
a. compaction b. cementation
c. recrystallisation d. all of the above
129. Out of the list of arenites listed below choose the one with framework and cement
a. orthoquartzite b. greywacke
c. arkose d. lithic arenite
130. Provenance rock of arkose is composed of
a. granite b. gabbro
c. dolerite d. syenite
131. Reservoir rock of world’s largest oil fields is
a. limestone b. impure limestone
c. calcareous sandstone d. arkose
132. Oolite is equivalent of
a. silt b. sand
c. granule d. pebble
133. Travancore beach placers are a world renowned occurrence. It shows unique association of several heavy minerals. In the order of abundance they are
a. ilmenite, magnetite, sillimanite, garnet, zircon and monazite
b. magnetite, sillimanite, garnet, zircon, monazite and ilmenite
c. sillimanite, garnet, zircon, monazite, ilmenite and magnetite
d. garnet, zircon, monazite ilmenite, magnetite and sillimanite
134. A characteristic fossil of Quilon limestone is
a.globigerina b. conodont
c.operculina malabarica d. nummulite
135. A classic example of tide dominated delta is
a. Nile delta b. Sundarban delta
cc. Missippi delta d. Niger delta
136. The type of metamorphism in which large scale addition or removal of minerals take place is
a. contact metamorphism b. metasomatism
b. dynamic metamorphism d. cataclastic metamorphism
137. In the following list which one is a stress mineral?
a. sillimanite b. kyanite
c. chiastolite d. cordierite
138. The phrase metamorphic zone was proposed by
a. Grubenmann & Becke b. Barrow
c. Tilley d. Eskola
139. Metamorphic facies denotes
a. conditions of temperature and pressure b. a unique rock type
c. unique micro-textures d. unique mineral assemblage
140. Khondalite, widespread in the Eastern ghats region, belongs to
a. granulite facies b. eclogite facies
c. amphibolite facies d. blue schist facies
141. Typical stratification in an oil pool is
a. oil, gas and water b. gas, oil and water
c. gas, water and oil d. all of the above
142. Karewas of Kashmir valley has economic deposit of
a. lignite b. barites
c. gypsum d. gas
143. Manganese deposits of Andhra Pradesh is associated with
a. gondites b. kodurites
c. bauxite d. bauxite and gibbsite
144. Kudremukh in Karnataka is known for
a. gold-quartz veins b. copper mineralization
c. iron ore deposits d. Pb-Zn deposits
145. From the list given below pick an ore of tungsten
a. scheelite b.Hubernite
c. wolframite d. franklinite
146. Workable graphite deposits are associated with
a. khondalites b. kodurites
c. kimberlite d. cummingtonite
147. Chief input in the ceramic industry is
a. china clay b. glass sand
b. magnesite d. bentonite
148 Gossan is a weathered upper part of a
a. sulphide orebody b. oxide ore body
c. carbonate ore body c. all of the above
149. One of the minerals in the list is used in making drilling mud
a. satinspar b. barites
c. magnesite d. flourspar
150. Which of the following method is unsuitable for dating the earth
a. K-Ar b. U-Th
c. K-Ar d. 14C
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Extra question
. Classification of detrital sedimentary rocks are based on mineral composition
a. frame work grains b. matrix and cement
c. cement and frame work grains d. cement and porosity
MCQ in Geology
1.Extrusive rock of granitic composition is called
a. andesite b. rhyolite
c. trachyte d. diorite
2. During deposition, inter-granular space between particles trap water. This water is designated as
a. meteoric water b. connate water
c. juvenile water d. sediment water
3. A sillimanite bearing metamorphic rock common in the granulite terrains is called
a. charnockite b. khondalite
c. aplite d. eclogite
4.Streak of some minerals is often diagnostic. Cherry red streak is characteristic of
a. azurte b. malachite
c. hematite d. magnetite
5. Refractory bricks are very important material used in furnaces. Many refractory source materials are of geologic origin. One such is
a. magnesite b. Gypsum
c. anhydrite d. barite
6. Bauxite, an ore of aluminum, is formed by a geological process. It is called
a. beach placer b. supergene enrichment
c, magmatic differentiation d. residual concentration
7. Pleochroism is a property of minerals in thin sections and some are diagnostic. From the list pick a non-pleochroic mineral.
a. muscovite b. biotite
c. phlogopite d. hornblende
8. In minerals forming in orthorhombic system, the vibration directions X, Y and Z
a. coincide with the crystallographic axes b. only X coincides with a crystallographic axis
c. only Z coincides with one of the axes d. Y always coincides with the b axis
9. In biogenous deposits, radiolarian and diatomaceous oozes are always
a. calcareous b. chitinous
c. siliceous d. phosphatic
10. Style of extinction of quartz has been handy in identifying the nature of provenance rocks.
For example wavy extinction is indicative of
a. sedimentary source rocks b. igneous source rocks
c. metamorphic source rocks d. volcanic source rocks
11.From the following list select an un-stratified sedimentary deposit.
a. Shale b. Glacial varve
c. Glacial till d. Turbidite
12.The Indian shoreline is quite long and it measures about
a. 3100 km b. 4100 km
c. 5100 km d. 6100 km
13.Limestone caves are characterized by carbonate deposits formed by solution and re-precipitation process. One such deposit growing on the floor upwards is called
a.Stalactite b. stalagmite
c. cave pearl d. malachite
14. The Quilon formation of Kerala has a geologic age of
a. mid-miocene b. Mio-pliocene
c. Paleocene d. Pleistocene
15. From the following list of minerals pick the one most resistant to weathering process
a. muscovite b. biotite
c. quartz d. olivine
16.Pick a carbonate mineral from the list below
a. cat-toothspar b. satinspar
c. Iceland spar d. dogtoothspar
17.Basic unit In the lithostratigraphic classification is
a. group b. formation
c. member d. bed
18.Choose the correctly ordered list of varieties of coal in terms of increasing heat content
a. peat-lignite-anthracite b.. lignite-antracite-peat
c. anthracite-peat-lignite d. peat-anthracite-lignite
19.A generic term used to describe a gravelly sediment is
a. arenaceous sediment b. rudaceous sediment
c. argillaceous sediment c. lutaceous sediment
20. Among a host of methods used in exploration, oil industry prefers:
a. Seismic refraction b. seismic reflection
b. Electrical sounding d. gravity methods
21.In a geologic map, truncation of a set of beds by another set denotes
a. an unconformity b. plunging anticline
c. recumbent fold d. normal fault
22.Roughly annular distribution of outcrops of strata in a geologic map is suggestive of a
a. dome b. syncline
c. anticline d. volcanic cone
23.In the list of minerals below choose the mineral commercially referred as
Heavy spar
a. calcite b. dolomite
c. barites d. aragonite
24.Thin section of tourmaline cut parallel to c-axis, under cross polars shows
a. isotropism b. parallel extinction
c. cross like arrangement of inclusions
d. linear arrangement of inclusions
25.Mineral rhodochrosite is
a. oxide of Mn b. silicate of Mn
c. carbonate of Mn d. sulphide of Mn
26.Chromite, a mineral of element Cr, is
a. a sulphide b. a sulphate
c. an oxide d. a silicate
27.The gondite of India are uniquely associated with
a. Mn deposits b. Cr deposits
c. Fe deposits d. Zn deposits
28.The geological age of lignite bearing sedimentary deposits of Neyveli is
a. Eoccene b. Paleocene
c. Mio-Pliocene d. Oligocene
29.The formation occurring at the base of cretaceous rocks of Trichnapally is
a. Uttathur b. Ninyur
c. Trichnapally d. Ariyalur
30.Nine planes, 13 axes and a centre of symmetry characterizes
a.normal class of hexagonal system b.normal class of trigonal system
c.normal class of cubic system d.normal class of orthorhombic system.
31.Mineral almandine crystallizes in the
a. cubic system b. tetragonal system
c. triclinic system d. orthorhombic system
32..Marble is a product of
a. thermal metamorphism b. dynamic metamorphism
c. dynamo-thermal metamorphism d. ctaclastic metamorphism
33. In respect of earthquakes, the point of origin in the lithosphere is called
a. epicenter b. epocentre
c. focus d. hypocentre.
34. Iceland, in north Atlantic is very special geologically as it is
a. on an island arc b. on midoceanic ridge
c. an extinct volcano d. a locus of a huge Mn deposit
35. Mohorovicic discontinuity separates
a. crust from the mantle b. mantle and core
c. oceanic crust from inner core d. asthenosphere and mesosphere
36. Among the many geologic structures, topographic expression is most striking in respect of
a. folds b. faults
c. joints d. domes.
37. While calculating axial ratios of a crystal, one of the axis in the following list is taken as unity
a., a axis b. b axis
c. c axis d. a1 axis
38. Trapezohedron is a form that occurs in following crystal system
a. hexagonal system b. trigonal system
c. tetragonal system d. all of the above
39. In triclinic system all forms have only
a. 2 faces b. 4 faces
c. 3 faces d. six faces
40. Among the seven crystal systems, all classes do have a centre of symmetry anyway. But how many are they?
a.32 b.24
c.21 d.15
41.Highest level of substitution of Al for Si occurs in
a. orthoclase b. microcline
c. albite d. anorthite
42.Play of colours, a mineral property is caused by
a. low dispersion b. high dispersion
c. low interference d. high interference
43. From the minerals in the list below choose the one with does not show needle like habit.
a. wavellite b. sillimanite
c. tourmaline d. rutile
44. Given appropriate conditions mineral anhydrite can change to gypsum by
a. chemical by acquiring elements b. by loosing chemical elements
c. by exchanging chemical elements d. none of the above processes
45. Some minerals show a variation of physical properties along crystallographic axes. Say for e.g., high hardness is exhibited by mineral kyanite parallel to
a. c axis b. b axis
c. a axis d. b and c axes
46. Principal difference between graphite and diamond is
a. composition b. hardness
c. density d. structure
47. One of the minerals in the following list contains Fe and Ti
a. Rutile b. anatase
c. brookite d. ilmenite
48. Birefringence is a property of anisotropic minerals. Calcite is mineral showing very high birefringence. Under the microscope this manifests as
a. twinning b. pleochroism
c. twinkling d. glittering
49. Many anisotropic minerals under the microscope show parallel extinction if section is cut parallel to,
a. crystallographic axes.
b. crystallographic axes in monoclinic or triclinic systems
c. crystallographic axes in hexagonal, and orthorhombic systems
d. crystallographic axes in tetragonal, hexagonal and orthorhombic systems
50. Minerals show dichroism if they crystallized in
a. cubic system b. tetragonal system
c. monoclinic system d. orthorhombic system
51. Under cross polars, sections of minerals crystallizing in hexagonal system appear to be isotropic if
a. section lies on the c-axis b. section is at angle to c-axis
c. c-axis intersects section at right angles d. if section is cut perpendicular to a1-axis
52. In the list of minerals indicated below which one has the least dispersion?
a. fluorite b. diamond
c. calcite d. quartz
53. Cross hatched appearance of microcline under cross polars is caused by
a. polysynthetic twinning on albite law b. twinning on pericline law
c. 2 way twinning on albite law d. two-way twinning on albite and pericline laws
54. Basal sections of hornblende shows two sets of intersecting clevages making angles of
a. 56 and 124 deg b. 58 and 122 deg
c. 92 and 88 deg d. 110 and 70 deg
55. Among all the elements appearing in the periodic chart, natural elements are only
a. 92 b. 96
c.. 102 d.106
56. The most abundant silicate mineral in the crustal rocks is
a. quartz b. orthoclase
c. plagioclase d. kaolinite
57.. The earth derives most of its heat from the decay of
a. uranium 238 b. uranium 236
c. uranium 232 d. uranium235
58. Crustal abundance of oxygen by volume is about
a.. 94% b. 63%
c.. 57% d. 80%
59.. The texture of rocks formed by eutectic crystallization is called
a. graphic texture b. corona texture
c. annular texture d. overgrowth texture
60. In a binary phase diagram, liquidous, an down-curving line, indicates
a. crystallizing composition of solid from melt
b. composition of the liquid corresponding to crystals that form
c.. changing temperature of the melt d. continuously changing pressure of the melt
61. In a hill, a series of horizontal beds, are exposed. The bed that occurs at the summit of the hill is
a. oldest in age b. intermediate in age
c. youngest in age d. need fossil evidence to fix age.
62. A contour map showing thickness of beds is
a. isopach map b. isohyetal map
c. isovel map d. isogyric map
63. In some faults the stratigraphic throw is measured in miles. Pick such a fault from the attached list
a. step fault b. gravity fault
c. overthrust d. underthrust
64. Low amplitude minor folds seen in folded sequences are reliable signatures of major structure. Then such minor folds are described as
a. drag folds b. small folds
c. pucker folds d. crease folds
65. A synclinal hill is an example of
a. outlier b.inlier
c. ooflap c. onlap
66. In a geologic map the key bed – volcanic ash deposit- shows a zig-zag outcrop. This pattern of outcrop is caused by
a. a synclinal fold b. a symmetric fold
c. a plunging fold d. isoclinal fold
67. If the contact of a sedimentary bed rigorously follows the contours of a geologic map, the outcrop pattern suggests
a. horizontal bed b. low angle thrust fault
c. near vertical synclinal axis. d. near vertical anticlinal axis
68. Outcrop of a dolerite dike, in a geologic map, cuts through contours and river valleys along a straight line.
a. dike is vertically dipping b. intrusive dolerite dikes always do so
c. it is a growing intrusive d. all of the above
69. In a geologic map, beds are repeated like 1-2-3-2-1, which suggests
a. folded sequence b. faulted sequence
c. cyclic deposition d. all of the above
70. Porphyritic texture in igneous rocks suggest
a. two rates of cooling of magma b. abundance of one phase over the rest
c. phenocrysts formed at site of emplacement
d. ground mass formed in the chamber
71. Relative motion of blocks, across a fault plane can be recognized by smoothness of the fault plane
a. while moving palm of hand in the direction of motion.
b. while moving palm of hand against direction of motion
c. while moving the palm along the strike of fault plane
d. all of the above
72. A property of rocks whereby they break along parallel surfaces is called
a. bedding fissility b. rock cleavage
c. lineation d. foliation
73. Clevage and bedding relationship is used to decipher major folds. If the cleavage dips more gently than bedding it indicates
a. symmetrical folds b. asymmetrical folds
c. overturned folds d. isoclinal folds
74. Variability of elevation of a terrain are pictured by contour lines. In a map closely spaced contours are preceeded and followed by wider spacing, it indicates
a. monocline b. gentler surface
c.. anticline d. syncline.
75. In a geological map, if a key bed shows an ellipsoidal outcrop, it may be indicative of
a. doubly plunging fold b. an asymmetrical fold
c. salt dome d. laccolith
76. By the process Petrifaction, an organism is preserved
a. with its internal structure and morphological features
b. only with the morphological features
c. only the internal structures are preserved
d. only part of the internal structures are preserved.
77. Most suitable environment for preservation of fossils is
a. lacustrine b. marine
c. fluvial d. paludal
78. From the following list pick the person who is considered to be the father of paleontology
a. Lamarck b. James Hutton
c. William Smith d. Charles Lyell
79. Study of trace fossils is known as
a. paleo-ecology b.Synecology
c. Icthyology d. Ichnology
80. Fauna composed of active swimmers are known as
a. Plankton b. nekton
c. benthos d. pelagic
81. Foraminifers belong to the class
a. sarcodina b. astorhiza
c. flagellate d. mastigophora
82. Nummulites were chief rock builders during
a. Silurian b. Devonian
c. Eocene d. cretaceous
83. Reef building coral prefer
a. warmer waters b. cooler waters
c. high salinity d. terrestrial detritus
84. What is the scientific name of sea urchins?
a. diatoms b. echinoids
c. conodonts d. brachiopods
85. Synonym of lamellibranches is
a. pelecypod b.alcyonaria
c. zooantharia d. rugosa
86 Earliest pelecypod appeared in
a. lower Ordovician b. Upper Devonian
c. early Carboniferous d. lower Devonian
87. Changes in shape of the shell as well as coiling are the result of
a. free swimming nature b. .crawling nature
c. sessile habit d. burrowing habit
88. The age of the brachiopod syringothyris is
a. Ordovician b. Silurian
c. Devonian d. carboniferous
89 Which one of the following shows sinistral coiling?
a. murex b. conous
c. physa d. bellerophon
90. Ammonoids became extinct during
a. upper carboniferous b. late cretaceous
c. upper cretaceous d. Eocene
91. In ammonoids, goniatites suture reached its peak during
a. lower carboniferous b. .Permian
c. middle carboniferous d. upper carboniferous
92. In India most evolved dinosaur remains are associated with
a. bagh beds b. Lameta beds
c. Umaria marine beds d. Bap beds
93. Vertebraria, a plant fossil,
a. belongs to conifers b. belongs to cycads
c. is stem of glossopteris d. is stem of gangamopteris
94. First dinosaurs appeared during
a. early triassic b. late Triassic
c. early Jurassic d. early cretaceous
95. Which era is called age of mammals?
a. Azoic b. Paleozoic
c. Cenozoic d. Mesozoic
96 Jawed fishes appeared first during
a. Cambrian b. Ordovician
c. Silurian d. Devonian
97. Neogene period includes
a. Paleocene and Eocene b. Eocene and Oligocene
c. Oligocene, Miocene and Pliocene d. Miocene and Pliocene
98. From the list pick the name which later was equated with father of stratigraphy
a. Charles Leyell b. John Lehman
c. Werner d. James Hutton
99. In the following list which term stands for basic unit of geologic time
a. Period b. eon
c. era d. epoch
100. Zone represents
a. lithostratigraphic unit b. biostratigraphic unit
c. Chronostratigraphic unit d. all of the above
101. First land plants appeared during
a. Silurian b. Ordovician
c. Devonian d. carboniferous
102 Type area of Sausar group is in
a. Western Rajasthan b. Nagpur, Ma
c. Sighbhum, Bihar d. Chindwara, MP
103. Plan view of Cuddapah basin is
a. Cresentic b. linear
c. curved d. curvelinear
104. Dalma traps of volcanic rocks are found to occur on top of
a. Sausar-sakoli series b. iron ore series
c. Railo series d. Kolhan series
105. In the list given below, which group of rocks is intensely folded?
a. Semri group b. Kaimur group
c. Rewa group d. Bhander group
106. Commonest lithology in the Vindhyan super group is
a. Limestone b. sandstone
c. shale d. Basalt flows
107. Majority of rock formations of Gondwana have formed under
a. fluviatile conditions b. glacial conditions
c. lacustrine conditions d. nearshore marine conditions
108. The great cenomanian transgression occurred during
a. cretaceous b. Triassic
c. Jurassic d. Paleocene
109. The main boundary fault separates
a. upper Vindhyans and Aravallis b.Siwaliks and Aravallis
c. Siwaliks and Tertiaries d. Siwaliks and Budelkhad granites
110. Affinity of inter-trappeans are
a. marine b. lacustrine
c. transitional d. volcanic
111. Folded strata show characteristic joints. Those that are perpendicular to the fold axis are called
a. Tension joints b. shear joints
c. extension joints d. release joints
112.Pahoehoe is a type of
a. meteorite b. stratovocano
c. ropy lava d. blocky lava
113.Gneissic rocks common in the shield areas. A gneiss formed out of igneous rocks is designated as:
a. orthogneiss b. metagneiss
c. paragneiss d. polygneiss
114. In the ore deposits formed of supergene enrichment in a tropical climate in the vadose zone is characterized by
a. sulphide minerals b. Sulphate mineral
c. oxide minerals d. carbonates
115. China clay deposits of Singhbhum dist. Of Bihar, one of the most mineralized terrains in the nation, is formed by
a. residual concentration b. mechanical concentration
c. gravity concentration d. hydrodynamic concentration
116.Evidence of volcanic activity in the Cuddapah time is evinced by lava associated with
a. cumbum formation b. Tadapatri formation
c. Nagari formation d. Vempalli formation
117.Rocks of syenite group are characterized by the presence of
a. quartz b. nepheline
c. alkali feldspar d. k-felspar
118.Mineral composition of gabbro is approximately
a. hornblende and andesine b. labradorite and clinopyroxene
c. orthpyroxene and labrodorite d. olivine and calcic plagioclase
119.Igneous rocks do occur in glassy state too. From the list pick out the glass equivalent of an acid magma.
a. obsidian b. tektite
c. tachylite d. rhyolite
120.CIPW classification of igneous rocks is essentially one based on
a. natural mineral assemblage b. proxy minerals
c. rock texture d. texture and fabric
121. Igneous rocks showing aphanitic texture suggest
a. quick and fast cooling of magma, b. two stage cooling of magma
c, slow cooling of the magma d. all of the above
122.From the following list of rocks pick a mono-mineralic rock.
a. dacite b.dunite
c. trachyte d. andesite
123.Most abundant mineral in anorthosite is
a. orthoclase b. plagioclase
c. pyroxene d. amphibole
124.From the list of rocks given below pick the one with lowest silica content.
a. rhyolite b. trachyte
c. phonolite d. nepheline syenite
125. Characteristic feature of a turbidite is the association of
a. couplet of lutaceous and arenaceous layers b. graded bed resting on an erosional surface
c. sole marks and tool marks d. all of the above
126. Texturally the chief end members are
a. gravel, sand and mud b. granule, pebble and cobble
c. silt, clay and sand d. granule, sand and mud
127. Modern stromatolites uniquely occur in
a. subtidal zone b. intertidal zone
c. supratidal zone d. all of the above
128. Sediments are converted to rocks by
a. compaction b. cementation
c. recrystallisation d. all of the above
129. Out of the list of arenites listed below choose the one with framework and cement
a. orthoquartzite b. greywacke
c. arkose d. lithic arenite
130. Provenance rock of arkose is composed of
a. granite b. gabbro
c. dolerite d. syenite
131. Reservoir rock of world’s largest oil fields is
a. limestone b. impure limestone
c. calcareous sandstone d. arkose
132. Oolite is equivalent of
a. silt b. sand
c. granule d. pebble
133. Travancore beach placers are a world renowned occurrence. It shows unique association of several heavy minerals. In the order of abundance they are
a. ilmenite, magnetite, sillimanite, garnet, zircon and monazite
b. magnetite, sillimanite, garnet, zircon, monazite and ilmenite
c. sillimanite, garnet, zircon, monazite, ilmenite and magnetite
d. garnet, zircon, monazite ilmenite, magnetite and sillimanite
134. A characteristic fossil of Quilon limestone is
a.globigerina b. conodont
c.operculina malabarica d. nummulite
135. A classic example of tide dominated delta is
a. Nile delta b. Sundarban delta
cc. Missippi delta d. Niger delta
136. The type of metamorphism in which large scale addition or removal of minerals take place is
a. contact metamorphism b. metasomatism
b. dynamic metamorphism d. cataclastic metamorphism
137. In the following list which one is a stress mineral?
a. sillimanite b. kyanite
c. chiastolite d. cordierite
138. The phrase metamorphic zone was proposed by
a. Grubenmann & Becke b. Barrow
c. Tilley d. Eskola
139. Metamorphic facies denotes
a. conditions of temperature and pressure b. a unique rock type
c. unique micro-textures d. unique mineral assemblage
140. Khondalite, widespread in the Eastern ghats region, belongs to
a. granulite facies b. eclogite facies
c. amphibolite facies d. blue schist facies
141. Typical stratification in an oil pool is
a. oil, gas and water b. gas, oil and water
c. gas, water and oil d. all of the above
142. Karewas of Kashmir valley has economic deposit of
a. lignite b. barites
c. gypsum d. gas
143. Manganese deposits of Andhra Pradesh is associated with
a. gondites b. kodurites
c. bauxite d. bauxite and gibbsite
144. Kudremukh in Karnataka is known for
a. gold-quartz veins b. copper mineralization
c. iron ore deposits d. Pb-Zn deposits
145. From the list given below pick an ore of tungsten
a. scheelite b.Hubernite
c. wolframite d. franklinite
146. Workable graphite deposits are associated with
a. khondalites b. kodurites
c. kimberlite d. cummingtonite
147. Chief input in the ceramic industry is
a. china clay b. glass sand
b. magnesite d. bentonite
148 Gossan is a weathered upper part of a
a. sulphide orebody b. oxide ore body
c. carbonate ore body c. all of the above
149. One of the minerals in the list is used in making drilling mud
a. satinspar b. barites
c. magnesite d. flourspar
150. Which of the following method is unsuitable for dating the earth
a. K-Ar b. U-Th
c. K-Ar d. 14C
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Extra question
. Classification of detrital sedimentary rocks are based on mineral composition
a. frame work grains b. matrix and cement
c. cement and frame work grains d. cement and porosity
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