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Q.1 In Mohs’ scale of hardness, how many minerals are of silicate composition?
(A) 4 (B) 5 (C) 6 (D) 7
Q.2 Which one of the following river systems forms the largest fluvio-deltaic system in the world?
(A) Mississippi–Ohio (B) Red–Mekong
(C) Ganga–Brahmaputra (D) Yellow–Ba Hoi
Q.3 Which one amongst the following rocks commonly has highest unconfined compressive strength?
(A) Coarse-grained sandstone (B) Mica schist
(C) Fossiliferous limestone (D) Massive basalt
Q.4 Eparchean unconformity separates geological units of
(A) early Archaean from late Archaean (B) Archaean from Proterozoic
(C) Proterozoic from Palaeozoic (D) Archaean from Phanerozoic
Q.5 Point bar deposit is associated with
(A) braided river (B) estuary
(C) meandering river (D) beach
Q.6 Polymetallic nodules on the ocean floor contain significant amounts of:
(A) Cu–Ni–Co (B) Pb–Zn–Ti
(C) Hg–Mo–Pt (D) U–Th–Nb
Q.7 If the rake of net slip of an inclined fault is 90°, the fault is
(A) strike-slip fault (B) dip-slip fault
(C) oblique-slip fault (D) transcurrent fault
Q.8 On a photo-scale of 1:40000, a square shaped open cast coal mine of 1 km2 area would have an area
of (in cm2)
(A) 2.50 (B) 4.00 (C) 6.25 (D) 12.00
Q.9 Bouguer correction is applied to correct for the gravity anomaly due to mass between station
location and
(A) mean sea level (B) local datum plane
(C) base of upper crust (D) Mohorovicic discontinuity
Q.10 Which one of the following can be estimated from SP log against a saline-water saturated sandstone
formation encountered in a well?
(A) Resistivity of formation water (B) Degree of water saturation
(C) Depth of invasion (D) Permeability
Q.11 During its orbital motion around the Sun, the Earth is nearest to the Sun on
(A) March 21 (B) July 4
(C) September 23 (D) January 3

Q.12 Which one of the following can be best explored using electromagnetic method?
(A) Oil-bearing strata (B) Coal-bearing strata
(C) Disseminated sulphide deposit (D) Massive sulphide deposit
Q.13 Name the planet in the solar system which has its “day” longer than its “year”.
(A) Mercury (B) Venus
(C) Mars (D) Neptune
Q.14 The most sensitive instrument for magnetic survey is
(A) magnetic field balance (B) fluxgate magnetometer
(C) proton precession magnetometer (D) optically pumped magnetometer
Q.15 Which physical property of the medium governs the response of Ground Penetrating Radar (GPR)?
(A) Electrical conductivity (B) Electromagnetic conductivity
(C) Seismic wave velocity (D) Electrical permeability (dielectric permittivity)
Q.16 Out of the following gases which one has the highest contribution towards the greenhouse effect on
the Earth?
(A) CO2 (B) CO (C) CH4 (D) H2O
Q.17 Depth range of the ‘transition zone’ associated with phase changes in the Earth’s mantle is (in km)
(A) 35 to 150 (B) 150 to 410
(C) 410 to 660 (D) 660 to 800
Q.18 Choose the correct pair of plutonic rock and its volcanic equivalent.
(A) Gabbro–Trachyte (B) Syenite–Andesite
(C) Granite–Rhyolite (D) Granodiorite–Basalt
Q.19 Which of the following is NOT a variety of silica (SiO2)?
(A) Jasper (B) Coesite
(C) Stishovite (D) Flinkite
Q.20 Which one of these is NOT a source of sufficient water supply but can transmit certain quantity of
water on a regional scale due to leakage?
(A) Aquifer (B) Aquitard
(C) Aquiclude (D) Aquifuge

Q.21 Identify the type of fault present in the given aerial photograph.
(A) Normal fault (B) Reverse fault
(C) Left-lateral strike-slip fault (D) Right-lateral strike-slip fault
Q.22 The Jurassic stratigraphic succession of Kutch is characterized by which one of the following?
(A) Cephalopods (B) Trilobites
(C) Brachiopods (D) Graptolites
Q.23 Which one of the following mineral constituents exhibits strong absorption in the UV-blue band of
the EM spectrum due to charge transfer effect leading to colouration?
(A) Fe-O (B) Si-O (C) Al-OH (D) Mg-OH
Q.24 When did the supercontinent Pangaea begin to break up?
(A) Cenozoic (B) Mesozoic
(C) Palaeozoic (D) Proterozoic
Q.25 In which of the following localities does coal deposit occur?
(A) Dariba (B) Kudremukh
(C) Wardha (D) Rudrasagar

PART B (SECTION 1): FOR GEOLOGY CANDIDATES ONLY

Q.26 Specific discharge of 1 cm per day is observed in a porous medium where hydraulic head difference
is 0.5 m and flow length is 20 m. Calculate the hydraulic conductivity (in m/day).
(A) 0.4 (B) 0.8 (C) 1.2 (D) 1.6
Q.27 A sandstone bed dipping 30° has an outcrop width of 20 m in a flat terrain. What is the true
thickness (in m) of the bed?
(A) 5 (B) 10 (C) 20 (D) 30
Q.28 Calculate the concentration (in ppm) of Ni in olivine that crystallizes from a basaltic magma
containing 20 ppm Ni. The partition coefficient (solid/melt) of nickel is 5.
(A) 4 (B) 20 (C) 100 (D) 500
Q.29 An analysis of augite yields 3 silicon atoms calculated on the basis of 12 oxygen atoms. If only Al
replaces Si, calculate the number of tetrahedral-Al in the mineral.
(A) 1 (B) 2 (C) 3 (D) 4
Q.30 Calculate the degree(s) of freedom of the assemblage orthopyroxene + clinopyroxene + plagioclase
+ hornblende + quartz + fluid in the chemical system CaO–FeO–MgO–Al2O3–SiO2–H2O with
pressure and temperature as physical variables.
(A) 0 (B) 1 (C) 2 (D) 3
Q.31 Ca-montmorillonite is formed by the chemical weathering of
(A) calcite (B) augite
(C) orthoclase (D) forsterite
Q.32 In which of the following crystal systems, the characteristic symmetry elements “a two-fold axis of
rotation and at least two planes of symmetry” are possible?
(A) Tetragonal (B) Hexagonal
(C) Orthorhombic (D) Monoclinic
Q.33 Determine the correctness or otherwise of the following Assertion [a] and Reason [r].
Assertion: Biaxial minerals can be pleochroic in three shades.
Reason: Biaxial minerals have three refractive indices.
(A) Both [a] and [r] are true and [r] is the correct reason for [a]
(B) [a] is true but [r] is false
(C) [a] is false but [r] is true
(D) Both [a] and [r] are true but [r] is not the correct reason for [a]
Q.34 The correct sequence of metamorphic facies with increasing depth in a subduction zone is
(A) greenschist, blueschist, eclogite (B) greenschist, eclogite, blueschist
(C) blueschist, greenschist, eclogite (D) blueschist, eclogite, greenschist

Q.35 Which one of the following basins is producing petroleum from the coal-rich reservoir rocks?
(A) Rajasthan Basin (B) Cambay Basin
(C) Cauvery Basin (D) Krishna–Godavari Basin
Q.36 A major thrust in the Himalayas has resulted in intense shearing of a zone about 0.5 km wide on
either side of the thrust leading to landslides. Which GIS function can be used to display the shear
zone?
(A) Contiguity (adjacency) (B) Spread
(C) Proximity (buffer) (D) Search
Q.37 Vertical exaggeration commonly occurs during stereo-viewing of aerial photographs. Where does it
occur?
(A) In the photographs (B) In the terrain
(C) In the stereoscope (D) In the perceptor’s mind
Q.38 A potassic ultrabasic hybrid igneous rock containing macrocrysts of olivine, Cr-rich diopside,
phlogopite and pyrope in a groundmass of serpentine, carbonate and perovskite can be named as
(A) kimberlite (B) ijolite
(C) melilitolite (D) harzburgite
Q.39 Herringbone structure is generally formed in which of the following environments?
(A) Fluvial (B) Aeolian
(C) Lacustrine (D) Tidal
Q.40 In a typical coal mine area affected by acid mine drainage, which one of the following acids will be
dominant?
(A) Nitric acid (B) Sulphuric acid
(C) Hydrochloric acid (D) Hydrofluoric acid
Q.41 Match the items in Group I with those in Group II.
Group I Group II
P. Theca 1. Trilobite
Q. Midrib 2. Brachiopod
R. Deltidium 3. Glossopteris
S. Pygidium 4. Graptolite
5. Diatoms
(A) P-3, Q-4, R-5, S-1 (B) P-4, Q-3, R-2, S-1
(C) P-5, Q-3, R-2, S-1 (D) P-2, Q-4, R-5, S-1
Q.42 Arrange the following formations sequentially from older to younger:
P. Sargur Schist
Q. Kajrahat Limestone
R. Cuddalore Sandstone
S. Umia Ammonite Bed
(A) P, S, Q, R (B) P, Q, R, S
(C) P, Q, S, R (D) Q, S, P, R

Q.43 Which of the following statements is true?
(A) Transposition foliation is an indication of superposed folding
(B) Stratigraphic information is retained in transposition structures
(C) Transposition foliation develops parallel to axial plane of tight folds
(D) Fold closures can be well identified in transposition structures


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