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Latest TNPSC Assistant Geologist Exam Question (Objective Questions), MCQ in English
Subjects : Geology
Question Bank TNPSC Assistant Geologist Exam Paper 1 - English
Geology
Q 1 :
Which amongst the following planets has the highest number of known satellites ?
A.Mars
B.Uranus
C.Venus
D.Mercury
Q 2 :
S-wave is terminated at:
A.Crust-Mantle boundary
B.Lithosphere-Asthenosphere boundary
C.Mantle-Core boundary
D.Inner and Outer core boundary
Q 3 :
Arrange the elements Fe, O, H, He, Si in decreasing order of their abundance in the solar system.
A.H > He > O > Si > Fe
B.He > H > Si > O > Fe
C.H > He > O > Fe > Si
D.Si > Fe > H > He > O
Q 4 :
In the given figure (i),(ii),(iii) and (iv) denote the plate tectonic settings: Mid Oceanic Ridge (M), Island Arc (I), Continental Arc C. and Rift Zone (R).Which one of the following options is correctly matched ?
A.(i) - M, (ii) - I, (iii) - C, (iv) - R
B.(i) - R, (ii) - I, (iii) - M, (iv) - C
C.(i) - I, (ii) - R, (iii) - M, (iv) - C
D.(i) - I, (ii) - M, (iii) - C, (iv) - R
Q 5 :
The mechanism of plate movement is thought to be driven by :
A.Isostasy
B.Earth's rotation
C.Thermal convection cells
D.Polar wandering
Q 6 :
Hawaii island has its origin from:
A.Subducting plate
B.Plume
C.Plate collision
D.All of the above
Q 7 :
Most abundant element in the earth crust is:
A.Oxygen
B.Silicon
C.Aluminium
D.Iron
Q 8 :
Instrument for recording earthquake wave is called :
A.Seismograph
B.Seismograme
C.Seismometer
D.Scintillometer
Q 9 :
The cosmic ray intensity is minimum at the magnetic :
A.Equator
B.North pole
C.South pole
D.Tropic of cancer
Q 10 :
What power the Earth's internal heat engine ?
A.Solar energy
B.Ocean tides
C.Volcanoes
D.Radioactivity
Q 11 :
Oxygen built up in the Earth's atmosphere is caused by :
A.Formation of ocean in early history of Earth
B.Algae and other organisms employed photosynthesis
C.Oxygen settled on Earth from planets further from the sun
D.Rocks weathered and released their oxygen.
Q 12 :
Increased concentration of which of the following may cause maximum global warming ?
A.Oxygen
B.Nitrogen
C.Carbon dioxide
D.Water vapour
Q 13 :
Global warming may lead to increased sea level as a result of :
A.Melting of ice-caps
B.Thermal expansion of sea water
C.Both A and B
D.Isostatic rebound
Q 14 :
Three major orbit ally forced cyclicties (-100 kyr,-40 kyr,-22 kyr) in the climatic changes on Earth are termed as :
A.Milankovitch cycle
B.Turner cycle
C.Glieesberg cycle
D.Wilson cycle
Q 15 :
Ozone layer in Earth's atmosphere, is confined to:
A.Troposphere
B.Stratosphere
C.Mesosphere
D.Thermosphere
Q 16 :
The most abundant element in the Earth's crust is :
A.Aluminium
B.Oxygen
C.Iron
D.Carbon
Q 17 :
The internal structure of the Earth down up to the core, has been explored with the help of :
A.P-waves
B.S-waves
C.Both P- and S-waves
D.Drilling
Q 18 :
We get Lehmann discontinuity at an approximate depth of :
A.100 km
B.750 km
C.450 km
D.220 km
Q 19 :
Maximum damage in the event of an earth-quake is cause by :
A.P-waves
B.S-waves
C.L-waves
D.All of the above
Q 20 :
A negative gravity anomaly indicates :
A.An excess of mass
B.A deficiency in mass
C.A reversal of the gravitational field
D.None of these
Q 21 :
To qualify as a desert, a region must be :
A.Hot, with a mean annual temperature greater than 25°C (77°F)
B.Arid, with less than 15% of the ground surface vegetated
C.Both hot and arid
D.Either hot or arid
Q 22 :
At 300 north latitude, at the northern edge of tropical (Hadley) cell, convection takes place because :
A.Cool, dry air sinks, becoming drier as it heats up
B.Warm, moist air rises, increasing in relative humidity as it rises
C.Warm, dry air rises, becoming cooler
D.Cool moist air sinks, providing abundant rainfall
Q 23 :
The Gobi of Mongolia is a desert primarily because it is located :
A.In the subtropics
B.Near the geographic South Pole
C.Near the center of a large continent
D.Next to a cold ocean current
Q 24 :
In atmosphere radio wave occur in :
A.Troposphere
B.Stratosphere
C.Mesosphere
D.Ionosphere
Q 25 :
The process by which an originally homogeneous Earth developed a dense core and a light crust is called :
A.Metamorphism
B.Differentiation
C.Accretion
D.Compression
Q 26 :
The Gutenberg discontinuity lies between :
A.Crust and mantle
B.Lithosphere and asthenosphere
C.Outer core a and lower mantle
D.Inner core and outer core
Q 27 :
Airy's model of isostasy :
A.Requires mountains to have higher density than the oceanic crust
B.Requires mountains to have lower density than the oceanic crust
C.Requires mountains to have the same density as oceanic crust
D.Does NOT consider the densities of mountain and oceanic crust
Q 28 :
Himalaya is a product of :
A.Continent-arc collision
B.Continent-continent collision
C.Arc-arc collision
D.Continent-arc-continent collision
Q 29 :
The oldest rocks in the present ocean floor have age in range :
A.4.0-4.6 billion years
B.2.0-2.5 billion years
C.185-200 million years
D.60-65 million years
Q 30 :
The type of plate boundary associated with deep focus earthquake ?
A.Divergent
B.Convergent
C.Transverse
D.Both A. & B.
Q 31 :
The most abundant element in the universe is :
A.Silicon
B.Helium
C.Oxygen
D.Hydrogen
Q 32 :
What is the age of ocean floor ?
A.0-200 m.y.
B.0-500 m.y.
C.0-1000 m.y.
D.0-3500 m.y.
Q 33 :
New seafloor created at a :
A.Deep sea trench
B.Mid-oceanic ridge
C.Subduction zone
D.Transform fault
Q 34 :
By the plate tectonic processes, magma generation is highest in the following tectonic setting :
A.Convergent plate boundary
B.Continental intra-plate region
C.Oceanic intra-plate region
D.Oceanic ridges
Q 35 :
Which of the following is a living fossil ?
A.Arca
B.Cardita
C.Lingula
D.Trigonia
Q 36 :
Which one of the following features is NOT associated with an oceanic subduction ?
A.Sea-mount
B.Benioff zone
C.Back-arc
D.Fore-arc
Q 37 :
The term isostasy refers to :
A.Gravitational equilibrium
B.Thermal equilibrium
C.Magnetic equilibrium
D.Electrical equilibrium
Q 38 :
Deep sea trenches are associated with plate boundary :
A.Convergent
B.Divergent
C.Translational
D.Neutral
Q 39 :
What drive(s) the earth's internal heat engine ?
A.Radioactivity
B.Solar energy
C.Volcanism
D.Ocean tides
Q 40 :
Specimen of a species from the same locality as its holotype is called
A.Neotype
B.Metatype
C.Paratype
D.Topotype
Q 41 :
A deep valley forms where two plates pull apart :
A.Fault
B.Pangea
C.Mantle
D.Rift valley
Q 42 :
Mountain chain within water is :
A.Trench
B.Mid-oceanic ridge
C.Volcanic island
D.Reefs
Q 43 :
A boundary where plates slide past each other in opposite directions is termed as :
A.Transform boundary
B.Tensional zone
C.Diverse boundary
D.Converging boundary
Q 44 :
Wadati-Benioff zone indicates :
A.Shallow earthquake
B.Intermediate earthquake
C.Technical stable zone
D.Deep focus earthquake
Q 45 :
The first wave recorded on seismograph is :
A.P-wave
B.S-wave
C.P- and S-wave
D.L-wave
Q 46 :
The average radius of the earth is :
A.6378 km
B.637.1 km
C.6372 km
D.6271 km
Q 47 :
'Sima' is a part of :
A.Quter core
B.Crust
C.Upper mantle
D.Lower mantle
Q 48 :
The instrument used for recording seismic waves is :
A.Thermometer
B.Seismograph
C.Barometer
D.Seismogram
Q 49 :
The 'Nebular Hypothesis' was proposed by :
A.Kant
B.Laplace
C.Kant and Laplace
D.Moulten and Chamberlin
Q 50 :
Himalaya is :
A.Paleozoic tectonic mountain
B.Recent folded mountain
C.Collisional mountain
D.Indian mountain
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Geology
Q 51 :
The Gutenberg discontinuity separates :
A.Crust and upper mantle
B.Lower to upper mantle
C.Outer and inner core
D.Outer core and lower mantle
Q 52 :
Volcanic Island is associated with :
A.Ocean-continent convergence
B.Divergent boundaries
C.Transform boundary
D.Ocean-ocean convergence
Q 53 :
'Conorad discontinuity' lies between :
A.Crust and mantle
B.Sial and sima
C.Sima and mantle
D.Mantle and core
Q 54 :
The mean density of Earth is about :
A.2650 kg m-3
B.2750 kg m-3
C.4400 kg m-3
D.5500 kg m-3
Q 55 :
Match the scale in Group I with corresponding parameter in Group II .
Group I Group II
P. Richter scale 1. Earthquake damage
Q. Mercalli scale 2. Hardness
R. Moh's scale 3. Particle size
S. Udden-Went-worth scale 4. Earthquake magnitude
A.P-1, Q-4, R-2, S-3
B.P-4, Q-1, R-2, S-3
C.P-3, Q-4, R-2, S-1
D.P-4, Q-3, R-2, S-1
Q 56 :
'Wadati-Benioff zone' is well known for :
A.Deep focus earthquake
B.Shallow focus earthquake
C.Intermediate focus earthquake
D.Tectonically stable zone
Q 57 :
In internal structure of earth, the outer core is composed of :
A.Solid material
B.Gases
C.Liquid only
D.All of these
Q 58 :
Shear waves passes through :
A.Liquid only
B.Solid only
C.Gas only
D.All of these
Q 59 :
Asteroids are minor planetary bodies located between :
A.Earth and Mars
B.Jupiter and Saturn
C.Mars and Jupiter
D.Mercury and Venus
Q 60 :
Which one of the following options does correctly represent the elements in order of decreasing abundance in the Earth's crust ?
A.Fe > Si > O > Al
B.O > Si > Al > Fe
C.Si > O > Al > Fe
D.Si > Al > Fe > O
Q 61 :
The average density of the earth is :
A.4.5 gm/cm3
B.5.5 gm/cm3
C.6.5 gm/cm3
D.7.5 gm/cm3
Q 62 :
Volcanic activity is usually absent along :
A.Divergent plate boundaries
B.Convergent plate boundaries
C.Transform faults
D.All of the above
Q 63 :
What can be expected at a depth of about 35 km inside the earth ?
A.Inner mantle
B.Inner core
C.Mohorovicic discontinuity
D.Gutenberg discontinuity
Q 64 :
Sial is also known as :
A.Part of core
B.Lower continental crust
C.Mantle
D.Upper continental crust
Q 65 :
Match the tectonic units listed in Group 1 with their geographical locations in Group 2 .
Group-1 Group-2
P. Continent-oceanic lithosphere convergence 1. Himalayas
Q. Continent-continent collision 2. Andes
R. Continental rift system 3. Japanese island
S. Oceanic-oceanic lithosphere convergence 4. East Africa
A.P-2, Q-1, R-4, S-3
B.P-2, Q-3, R-4, S-1
C.P-3, Q-4, R-1, S-2
D.P-4, Q-1, R-2, S-3
Q 66 :
Gutenberg Discontinuity in the interior of the Earth occurs at the depth of :
A.35 km
B.800 km
C.2900 km
D.5200 km
Q 67 :
Isostasy involves :
A.Eustatic change
B.Gravitational balance
C.Magnetic reversal
D.Thermal balance
Q 68 :
The upper mantle of the earth is composed largely of :
A.Peridotite
B.Gabbro
C.Mafic granulite
D.Eclogite
Q 69 :
The lithosphere of the earth is made up of :
A.Crust
B.Crust and upper mantle
C.Crust and part of upper mantle
D.Upper mantle
Q 70 :
The explored part of the Moon consists dominantly of :
A.Basalt and anorthosites
B.Basalts
C.Basalts and granites
D.Basalts and andesites
Q 71 :
Reversal of magnetic polarity in strips of ocean floor basalt parallel to ridge axis, results due to :
A.Bimodal volcanism
B.Seafloor spreading
C.Transform faults
D.Alteration of seafloor basalt
Q 72 :
The amplitude of seismic waves in an earthquake of magnitude 2 on the Richter scale is larger than that of an earthquake of magnitude 1 by :
A.100 times
B.10 times
C.2 times
D.1000 times
Q 73 :
Most abundant element in the earth's crust is :
A.Carbon
B.Oxygen
C.Hydrogen
D.Nitrogen
Q 74 :
Aseismic ridges are associated with :
A.Hotspots
B.Subduction zones
C.Cratons
D.Island arcs
Q 75 :
The two most abundant elements in Earth's crust are :
A.Iron and Magnesium
B.Aluminium and Oxygen
C.Oxygen and Silicon
D.Silicon and Aluminium
Q 76 :
Most of the craters on moon surface are probably the result of :
A.Volcanic action
B.Meteoroid bombardment
C.Erosion
D.Deposition
Q 77 :
The most voluminous portion of the Earth is known to geologists as :
A.The crust
B.The mantle
C.The core
D.The lithosphere
Q 78 :
Rate of Indian plate motion at present is :
A.3-4 centimeters per year
B.1-18 centimeters per year
C.1 kilometer per year
D.1,000 kilometers per year
Q 79 :
The oldest seafloor on Earth is not more than :
A.200 million years old
B.2 billion years old
C.20 million years old
D.2 million years old
Q 80 :
The continental rise is :
A.A wedge of sediment at the base of the continental slope
B.An uplifted portion of the continent
C.A portion of the mid-ocean ridge
D.A flat- topped seamount
Q 81 :
Low velocity layer (LVL) within the Earth coincides with depth range of :
A.50-100 km
B.300-350 km
C.600-750 km
D.100-200 km
Q 82 :
The surface waves are :
A.P-waves
B.S-waves
C.Both P and S waves
D.L-waves
Q 83 :
Conrad discontinuity separates boundary between :
A.Lower crust and upper mantle
B.Upper mantle and lower mantle
C.Outer core and inner core
D.Upper crust and lower crust
Q 84 :
The new oceanic surface are created at ....... plate margin.
A.Constructive
B.Distractive
C.Conservative
D.Convergent
Q 85 :
Ozone layer in Earth’s atmosphere, is confined to :
A.Troposphere
B.Stratosphere
C.Mesosphere
D.Thermosphere
Q 86 :
Match the name of scientist (Group 1) and their famous theories (Group 2)
Group-1 Group 2
P. Alfred Wegener 1.Isostasy
Q. Airy 2.Sea floor spreading
R. Herry Hess 3.Theory of continental drift
S. Pratt 4. Big Bang theory
A.P-1, Q-2, R-3, S-4
B.P-3, Q-1, R-2, S-4
C.P-4, Q-1, R-2, S-3
D.P-1, Q-2, R-4, S-3
Q 87 :
Which of the following is supercontinents ?
A.Gondwanaland
B.Laurasia
C.Pangea
D.Panthalassa
Q 88 :
Outer core is liquid while the inner core is solid because :
A.Outer core is heated more than the inner core
B.Melting point of material in outer core is less than the ambient temperature while it is more for the material in inner core due to high pressure
C.Outer core is in contact with liquid mantle
D.Inner core is rich in iron and nickel while outer core is not
Q 89 :
Earth's crust consists of continental and oceanic parts. which of the following statement is not true ?
A.Oceanic crust has global layering while continental crust doesn't
B.Oceanic crust is thinner compared to continental crust
C.Oceanic crust is younger than continental crust
D.Oceanic crust is more metamorphosed compared to continental crust
Q 90 :
Which of the following regions would have thicker crust ?
A.Mountain belt
B.Mid Oceanic ridges
C.Precambrian Shield
D.Island arc
Q 91 :
Continental crust is higher in elevation than oceanic crust because :
A.It is more buoyant than oceanic crust
B.It is older than oceanic crust
C.It is younger than oceanic crust
D.It is denser than oceanic crust
Q 92 :
The average thickness of a lithospheric plate is approximately :
A.35 km
B.8 km
C.5 km
D.100 km
Q 93 :
The average thickness of the continental crust is about :
A.35-40 km
B.100-200 km
C.1000-2000 km
D.7-10 km
Q 94 :
The discontinuity which represents the boundary between crust and mantle is termed :
A.Moho
B.Conrad
C.Gutenberg
D.Lehman
Q 95 :
Benioff zone is associated with :
A.Subducted slab
B.Mid ocean ridges
C.Transform faults
D.Mountains
Q 96 :
Which of the following is seismic surface wave ?
A.P wave
B.S wave
C.Rayleigh wave
D.PKP wave
Q 97 :
The transfer of heat by the physical movement of material is called :
A.Conduction
B.Convection
C.Radiation
D.Scattering
Q 98 :
Himalayan mountains have formed primarily as a result of :
A.Compressive deformation between Indian and Asian tectonic plates
B.Relative uplift of sediments in the Tethys Ocean in an extensional setting
C.Strike-slip deformation between Indian and Eurasian plates
D.Extrusion of volcanic material over a long period of time on the Tethys ocean floor
Q 99 :
The average density of the Earth is :
A.3.5 g/cm3
B.4.5 g/cm3
C.5.5 g/cm3
D.6.5 g/cm3
Q 100 :
The value of gravity becomes zero at :
A.The surface of the earth
B.The centre of the earth
C.Equator
D.Poles
Q 101 :
Earthquake are generated due to :
A.Plastic flow of rocks and release of plastic strain energy
B.Folding of rock layers
C.Sudden release of elastic strain energy during fracture propagation
D.Sudden release of viscous strain accumulated in rocks
Q 102 :
Which of the following statements about Earth's core is true ?
A.Entire core is in liquid state
B.Entire core is in solid state
C.Outer core is in solid state and inner core is in liquid state
D.Outer core is in liquid state and inner core is in solid state
Q 103 :
Outer planets in our solar system are gaseous because :
A.In rotating nebula, the gases did not move to the center
B.Gases experience more centrifugal force
C.Gases are driven away by the Sun's heat
D.Rocks were pulled inside the solar system by the Sun's gravity
Q 104 :
The three most abundant silicate minerals in the earth's continental crust are :
A.Quartz, olivine, pyroxene
B.Quartz, feldspar, pyroxene
C.Quartz, feldspar, mica
D.Feldspar, pyroxene, mica
Q 105 :
S-wave is terminated at :
A.Crust-Mantle boundary
B.Lithosphere-Asthenosphere boundary
C.Mantle-Core boundary
D.Inner and Outer core boundary
Q 106 :
The layer that occurs in between crust and core is :
A.Magma layer
B.Lithosphere
C.Mantle
D.Continent
Q 107 :
New sea floor created as :
A.Deep sea trench
B.Mid oceanic ridge
C.Subduction zone
D.Transform fault
Q 108 :
The descent of the oceanic lithosphere into the mantle is the process of :
A.Accretion
B.Subduction
C.Obduction
D.Collision
Q 109 :
The age of the Earth is currently considered as :
A.6230 million years
B.3800 million years
C.4560 million years
D.5540 million years
Q 110 :
The lithosphere below stable continents is approximately ....... kilometers thick.
A.30-40
B.60-70
C.100-150
D.200-250
Q 111 :
The continental crust is always at higher elevation than oceanic crust, because :
A.Continental crust is lower in density than Oceanic crust
B.Continents have mountain ranges
C.Oceanic crust from at Mid oceanic ridges
D.Continental crust is older compared to Oceanic crust
Q 112 :
Inner planets differ from the outer planets of the solar system having :
A.A different direction of orbit
B.More rocky material than gases material
C.Higher gravitational force
D.More number of natural satellites
Q 113 :
Plate in 'Plate-tectonics' theory means :
A.Fragment of continental crust
B.Fragment of oceanic crust
C.Fragment of lithosphere
D.A part of mountain range
Q 114 :
More Tsunamis that hit Japan because :
A.Japan is in east where moon's tidal force are maximum
B.Japan's sea coast is not protected by rocks
C.Japan is along an active plae boundary where more underwater earthquakes take place
D.Average elevation of Japan is low
Q 115 :
What are the most abundant elements in the Earth crust ?
A.Iron and magnesium
B.Oxygen and silicon
C.Silicon and aluminium
D.Silicon and calcium
Q 116 :
The Earth's upper mantle is essentially made up of :
A.Olivine and pyroxene
B.Olivine and muscovite
C.Quartz and feldspar
D.Pyroxene and garnet
Q 117 :
The most abundant metal (by weight %) in the Earth's crust is
A.Al
B.Fe
C.Na
D.Mg
Q 118 :
On the Richter scale, a magnitude 8 earthquake is how much larger than a magnitude 6 earthquake
A.2 times
B.4 times
C.10 times
D.100 times
Q 119 :
What will happen to the age of the oceanic lithosphere as we move away from the mid - oceanic ridge ?
A.Increases
B.First increases then decreases
C.Decrease
D.First decreases then increases
Q 120 :
The direction of ground water-flow can be determined with the help of :
A.Depth of water level map
B.Water table contour map
C.Subsurface topographic map
D.All of the above
Q 121 :
Why was Paleomagnetism so important in discovering plate tectonics ?
A.It illustrate the location of the North pole
B.It illustrated sea floor spreading
C.It allowed measurement of mountain building rates
D.It allowed the depth of the ocean to be measured
Q 122 :
Which of the following statements about the age of the Earth's crust is correct ?
A.The oceanic crust contains the oldest rocks on earth
B.The oceanic crust is less than 200 million years old
C.The oceanic crust is oldest at the mid- oceanic ridges
D.All oceanic crust is the same age
Q 123 :
What is the angle of P-wave shadow zone ?
A.90 to 150 degree
B.104 to 150 degree
C.104 to140 degree
D.103 to 139 degree
Q 124 :
The amplitude of ground motion during an earthquake of magnitude 7 in Richter scale is how many times more than that of magnitude 5 ?
A.10
B.100
C.1000
D.10,000
Q 125 :
The failed arm of a continental rift is called
A.Hot spot
B.Horst
C.Decollement
D.Aulacogen
Q 126 :
How many major tectonic plates are there on the surface of the earth ?
A.4
B.6
C.5
D.12
Q 127 :
Hawaii island has its origin from :
A.Subducting plate
B.Plume
C.Plate collision
D.All of the above
Q 128 :
Where are earthquake most likely to take place ?
A.Along the core-mantle boundary
B.Where the composition of the Earth tends to be uniform
C.Near the earth equator
D.Near the fault zone
Q 129 :
At what speed does the Earth travels as it orbit on the sun ?
A.40 km/s
B.20 km/s
C.30 km/s
D.60 km/s
Q 130 :
Why do we have different season on the earth ?
A.Because of bio-rhythmic cycles
B.Because of the Earth's axial tilt
C.Because of rotation of the earth
D.Because of solar of the wind
Q 131 :
What is the most probable causes of the formation of the moon?
A.The earth's magnetic fields
B.The death of the old star
C.A meteor-like object striking the earth
D.Accretion of material already existing after formation of the earth
Q 132 :
The earth is currently in the interglacial stage. The last glacial periods ended about :
A.10,000 years ago
B.20,000 years ago
C.30,000 years ago
D.100,000 years ago
Q 133 :
Approximately how many years ago did the reversal of the Earth's magnetic poles occurs ?
A.400,000
B.700,000
C.300,00
D.900,000
Q 134 :
Which statements best describe the continental and oceanic crust ?
A.The continental crust is thicker and less dense than the oceanic crust
B.The continental crust is thinner and more dense than the oceanic crust
C.The continental crust is thinner and less dense than the oceanic crust
D.The continental crust is thicker and more dense than the oceanic crust
Q 135 :
The average thickness of the earth's crust on the continents ?
A.80 km
B.100 km
C.40 km
D.140 km
Q 136 :
The ozone layer is located in which level of the atmosphere ?
A.Thermosphere
B.Stratosphere
C.Troposphere
D.Mesosphere
Q 137 :
Which phenomenon is responsible for the production of about 80% of the earth's internal heat ?
A.Radioactive decay
B.magnetic decay
C.Friction between tectonic plates
D.The accelerated spinning of the inner core
Q 138 :
The rate of temperature increase below the earth's surface is greatest between depth of :
A.3500 and 4000 km
B.25 and 500 km
C.1500 and 2500 km
D.2500 and 3500 km
Q 139 :
To get a sample material from the mantle, drilling will be done through the oceanic crust rather than through the continental crust because oceanic crust is :
A.Younger than continental crust
B.More dense than continental crust
C.Thinner than continental crust
D.Softer than continental crust
Q 140 :
The time that an earthquake occur can be inferred by knowing the :
A.Distance between seismograph station
B.Epicentre distance and arrival time of P-waves
C.Travel time of the S-waves
D. Arrival time of P-waves
D.Arrival time of P-waves
Q 141 :
Approximately how much percentage of the Earth's crust has been uplifted ?
A.20%
B.80%
C.60%
D.40%
Q 142 :
Which is the best evidence that the Earth's crust has been uplifted ?
A.Marine life found at high elevation above sea level
B.Younger fossils above older fossils in layers of rocks
C.Shallow-water fossils found at great ocean depths
D.The rise of sea level has occurred many times in earth's history
Q 143 :
How many mass extinction events do scientist believe to have occurred in the earth's history ?
A.1
B.6
C.5
D.3
Q 144 :
The inner most core of the earth is composed of what material ?
A.Iron
B.Nickel
C.Plutonium
D.Lead
Q 145 :
Which of the following is NOT a phenomenon that can occur as a direct result of tectonic plate movements ?
A.Orogeny
B.Tornodoes
C.Tsunamis
D.Volcanoes
Q 146 :
Recent volcanic activity in different parts of the world supports the inference that volcanoes are located mainly in
A.The central region of the continents
B.Zone of crustal activity
C.Zones in late stages of erosion
D.The centre of landscape region
Q 147 :
The only combination of triple junction that is always stable is :
A.Ridge - Ridge - Ridge
B.Trench -Trench -Trench
C.Ridge - Ridge - Trench
D.Ridge - Trench - Fault
Q 148 :
Which one of the following is the correct sequence of events in the Wilson cycle ?
A.Breakup of continents - seafloor spreading - subduction collision
B.Seafloor spreading -break up continents - subduction collision
C.Breakup of continents - Subduction collision seafloor spreading
D.Subduction collision - sea floor spreading - break up of continents
Q 149 :
The velocity of primary waves is minimum at the :
A.Inner core
B.Asthenosphere
C.Outer core
D.Mantle
Q 150 :
Most important stage in the formation of solar system is the burning of :
A.Oxygen
B.Helium
C.Hydrogen
D.Carbon
Q 151 :
Name the main constituent elements found in the core of the earth :
A.Iron-magnesium
B.Nickel iron
C.Silicon-magnesium
D.Magnesium-nickel
Q 152 :
Most abundant element in the earth crust is :
A.Oxygen
B.Magnesium
C.Iron
D.Silicon
Q 153 :
The Indian ocean tsunami that caused damages was due to an earthquake off the :
A.Andaman island
B.Indonesian island of Sumatra
C.Malaysia
D.Indonesian island of Java
Q 154 :
The 250 million years ago clustering of land masses of the earth in to a single super continent were known as :
A.Tethys
B.Gondwana land
C.Pangea
D.Eurasia
Q 155 :
A linear lowland between mountain ranges created by the action of a fault is known as :
A.Rift valley
B.Horst
C.Thrust belt
D.Subduction zone
Q 156 :
Which of the following is not a tectonic plate boundary ?
A.Mid-oceanic ridge
B.Subduction zone
C.Transform fault
D.Continental slope
Q 157 :
When plate collide, one plate goes down below another, it is known as a :
A.Collision boundary
B.Subduction boundary
C.Suture zone
D.Contact point
Q 158 :
Source of the Earth's heat energy is :
A.Radioactivity
B.Solar energy
C.Volcanoes
D.Ocean tides
Q 159 :
How many years ago the Big Bang took place :
A.10 - 15 thousand years ago
B.10 - 15 million years ago
C.100 - 150 million years ago
D.10 - 15 billion years ago
Q 160 :
The layer that lies below the crust is the :
A.Magma layer
B.Lithosphere
C.Mantle
D.Asthenosphere
Q 161 :
Volcanism is associated with which of the plate margins ?
A.Convergent
B.Divergent
C.Transform fault
D.Transcurrent fault
Q 162 :
The height of the Mount Everest is :
A.8848 m above mean sea level
B.8800 m above mean sea level
C.8700 m above mean sea level
D.8650 m above mean sea level
Q 163 :
The Gutenberg discontinuity is located at a depth of around :
A.35 km
B.150 km
C.2900 km
D.5000 km
Q 164 :
Thermohaline circulation in the oceans is driven by :
A.Only saline gradient
B.Both temperature and salinity gradient
C.Only temperature gradient
D.Only density difference
Q 165 :
Which one of the following lakes is interpreted to be of meteoric impact origin ?
A.Lunar lake
B.Chilka lake
C.Kolleru lake
D.Pulicut lake
Q 166 :
Which of the following is located closet to the Ninety - East-Ridge ?
A.Bombay high
B.Lakshadweep island
C.Andaman and Nicobar island
D.Maldives
Q 167 :
Who proposed the principle "the present is the key to the past"?
A.James Hutton
B.Carl von Linnaeus
C.William Smith
D.Orbigny
Q 168 :
The oceanic cover about .... area of the earth surface.
A.69%
B.21%
C.70.8%
D.80.2%
Q 169 :
Witwatersrand (South Africa) is famous for :
A.Coal deposits
B.Cooper deposits
C.Sedimentary uranium deposits
D.Sedimentary Mn and Fe deposits
Q 170 :
Which of the following is true about age of ocean floor ?
A.Oldest rock recorded is about 3.8 Ga age
B.Oldest rock recorded is about 4.2 Ga age
C.Youngest rock so far recorded is about 160 Ma
D.Oldest rocks are found near the trench
Q 171 :
Which of the following is true for East African rift system ?
A.Continental rift
B.Active rift system
C.Active volcanic activity
D.All of the above
Q 172 :
Transform boundaries may involve :
A.Ridge - ridge sliding
B.Ridge - trench sliding
C.Trench - trench sliding
D.All of the above
Q 173 :
Subduction involving two plates result in :
A.Trench curved convex to subdcucting slab
B.Trench curved concave to subducting plate
C.Dominantly tholeiitic magmatism
D.Earthquake associated with strike -slip faults
Q 174 :
Which one of the oldest Supercontinent :
A.Rodinia
B.Gondwana
C.Pangea
D.Ur supercontinent
Q 175 :
Which of the following is a robust indicator of horizontal movement of plate ?
A.APW paths
B.Isotopic systematic
C.Ophiolites
D.All the above
Q 176 :
Which of the following is an essential condition of plate tectonics ?
A.Rigidity of plate
B.Buoyancy of plate
C.Convection in core
D.All the above
Q 177 :
The 'D' layer within the Earth corresponds to a depth range between :
A.2740 - 2890 km
B.2010 - 2035 km
C.2890 - 3050 km
D.250 - 375 km
Q 178 :
The Lehmann discontinuity in the Earth is identified by :
A.5 - 6 % decreases in P and S wave velocity
B.3 - 4 % increases in P and S wave velocity
C.5% decreases in density
D.15 % increases in S wave velocity
Q 179 :
Sea-floor spreading goes through various stages. Which one of the following sequence represents the correct order of stage starting from the initial to move advanced ones ?
A.Red sea - Atlantic ocean - African rift valley
B.Red sea - African rift valley - Atlantic ocean
C.Atlantic ocean - Red sea - African rift valley
D.African rift valley - Red sea - Atlantic ocean
Q 180 :
We get seasons on the Earth mainly because :
A.The Sun gets hot and cold periodically
B.The Moon gets in the way of the Sun
C.The Earth's axis is tilted with respect to its rotation ellipse
D.The Earth's gets close and for with respect to the Sun
Q 181 :
Sea water is saline because :
A.Na+ is the most abundant cation in sea water
B.Cl- is the most abundant anion in sea water
C.NaCl is the first compound to precipitate from sea water
D.Na+ has highest residence time in sea water
Q 182 :
The "ring of fire" an arcuate belt with the largest number of active volcanoes on the earth is found in :
A.Atlantic ocean
B.Pacific ocean
C.African rift valley
D.Mid-oceanic ridge
Q 183 :
Lithosphere comprises of :
A.Crust and mantle
B.Crust, mantle and outer core
C.Crust and upper mantle
D.Crust and lower mantle
Q 184 :
80 degree ridge is located in :
A.Antartic ocean
B.Arabian sea
C.Indian ocean
D.None of the above
Q 185 :
Size of a kettle lake depends upon :
A.Size of the sediment carried by the glacier
B.Width of the glacier valley
C.Height of the valley through which the glacier moves
D.Size of the buried ice block within moraines
Q 186 :
Drainage density of a basin is defined as :
A.Sum of the number of streams of all orders divided by the area of the basin
B.Total length of streams of all orders divided by the area of the basin
C.Total number of the highest order streams divided by the total number of the next lower order streams
D.Length of the largest stream divided by the area of the basin.
Q 187 :
The wind system in the equatorial areas is known as :
A.Westerlies
B.Trades
C.Doldrums
D.Monsoon
Q 188 :
The monsoon has well developed cycle in :
A.South and South East Asia
B.North Australia
C.Africa
D.East United States
Q 189 :
Yazoo stream flows through :
A.Gorge
B.Divide
C.Backs wamp
D.Water gap
Q 190 :
The curved body of water formed when a meandering river reshapes and cuts off one of its bends is called :
A.Essing pond
B.Oxbow lake
C.Swensen pool
D.Groovy pool
Q 191 :
Barchan are :
A.Deflation basins
B.Oases
C.Crescent-shaped dunes
D.Sand dune
Q 192 :
Exfoliation is related to :
A.Metamorphism
B.Chemical weathering
C.Carbonation
D.None of the above
Q 193 :
Morains are :
A.Alluvial deposit
B.Fluvial deposit
C.Glacial deposit
D.Lacustrine deposit
Q 194 :
Elephant-skin weathering is generally found in :
A.Shale
B.Sandstone
C.Limestone
D.Conglomerate
Q 195 :
Roche Moutonnees are formed by :
A.Glacial
B.Wind
C.River
D.Ocean wave
Q 196 :
The geometry of sand dunes is strongly influenced by :
A.The strength of the wind
B.The consistency of wind direction
C.The abundance of sand
D.All of the above
Q 197 :
A mushroom-shaped landform consisting of a column of less resistant rock supporting a broader extent of wind-resistant rock is termed as :
A.Blowout
B.Ventifact
C.Wadies
D.Yardang
Q 198 :
Mars has polar ice caps that differ from the Earth's Antarctic Ice cap in that :
A.The Martian caps consist of a combination of water ice and frozen carbon dioxide (dry ice)
B.The Martian caps have a spiral fracture pattern not found in Antarctica
C.Martian caps are ablated by sublimation only; there is currently no liquid watere on Mars
D.All of the above are correct
Q 199 :
The first scientist who theorized the past presence of glaciers in Europe was :
A.Louis Agassiz
B.Charles Darwin
C.Walter Alvarez
D.Isaac Newton
Q 200 :
Areas on the southern margins of the continental glaciers of the Northern Hemisphere were much....during Plio-Pleistocene glaciations than they are today, as suggested by evidence of large....during this time.
