Hall Ticket No:
ENTRANCE ExAMINA'fION2014
Ph.D. Earth and Space Sciences

Date: 07.02.2014 Time: 2.00-4.00 PM Marks: 75
Instructions for the candidates:
All carry equal marks.
ii) Write your' . Haq Ticket Number in the OMR Answer Sheet given to . you. Also write the Hall Ticket Number in the space provided above.
iii) There is negative marking. Every wrong answer carries 0.33 mark.
iv) Hand over the OMR answer sheet at the end ofthe examination to the Invigilator.
No additional sheets will be provided. Rough work can be done in the question paper itself/ spaceprovidedattheend ofthe booklet. vi) Non-programmable calculators are allowed.
PART-A
1. What is the name for an erosion surface that separates two sets of sedimentary layers
with non-parallel bedding planes? (A)cross-bedding formation
fault unconformity angular unconformity
2. Uranium-238 decays to which ofthe following daughter isotopes?

rubidium-87 (B)uranium-235


lead-206 nitrogen-14


3. A stratigraphic sequence is a vertical set ofstrata
(A)used asachronologicalrecord ofthegeologichistory ofaregion

that is unique to a specific area


that represents a repeating set ofevents such as recurring floods, debris flows


bounded above and below by igneous and/or metamorphic rocks


4. The coefficient oftransmission ofa perfectly black body is
Zero One 0.5 0.75
5. When the planet comes nearer the sun moves
fast slow constant at every point none ofthe above

6. Kepler's second law regarding constancy of arial velocity of a planet is a consequence ofthe law of conservation of
energy angular momentum linear momentum none ofthese
7. The period of geostationary artificial satellite is
24 hours 6 hours 12 hours 48 hours
8. A missile is launched with a velocity less than the escape velocity. The sum of its kinetic and potential energy is
Positive Negative Zero may be positive or negative
9.Whatarethenumber ofmolesofC02whichcontains 16gofoxygen?
0.5 mole 0.2 mole 0.4 mole 0.25 mole
10.
The maximum number of isomers for an alkene with molecular formula C4Hg is

11.
The metal does not give H2 on treatment with dilute HCL is

Zn Fe .

12.
The metal used to recover copper from a solution ofcopper sulphate is Ag Hg Fe

13.
Radiometric dating is least useful for which rocks?

granitic basaltic metamorphic sedimentary

14.
Which ofthe following represents the longest time period

Precambrian Paleozoic Mesozoic Cenozoic

15.
The term moment ofmomentum is called (A)Momentum (B)Force (C)Torque (D)Angular momentum

16.
The value ofdeterminant, two ofwhose rows are equal to is

0 1 2 cannot be determined

17.
The locus of a point equidistant from is

1 1 D)2x-3y=3

18.
Derivative of sinx with respect to logx is


Cosx .logx x.sinx logx. Sinx x.sinx
19.Areaofthe'trianglewhoseverticesare(0,0), (A)4.5 9 18
20.
Equation of line passing through whose sum of intercepts is 0 is

21.
Three sigma limits ofNormal distribution cover an area of

99.45 99.73% 95% 68%

22.
Ifthe mean and variance ofa binomial distribution is 6 and 2 then the value ofprobability of success is

2/3

23.
The mean, media and mode ofnormally distributed population lies at the (A)Centre ofthe curve left side ofthe curve

right side ofthe curve none ofthese

24.
The oceans have a well-mixed surface layer approximately __meters thick

10 (C)100 (D)200

25.
Ifyou mix two samples ofwater with different temperatures and salinities but the same density, you will produce a mixture that has


a lower density


a higher density


the same density as the two samples


cannot be predicted




PART-B
26. Large reptiles became abundant during the which Era?
Cenozoic Mesozoic Paleozoic Precambrian
27. The lithosphere is approximately kilometers thick
1-2 5-10 50-100 (D)100-200
28. A mass M is moving with a constant velocity parallel to the X-axis. Its angular momentum with respect to the origin

Is zero Remains constant


Goes on increasing Goes on decreasing


29.A liquiddoesnotwetthesurface ofasolid iftheangle. ofcontactis

Zero An acute one


45° An obtuse one


30. The pressure just below the meniscus ofwater

Is greater than just above it Is less than just above it


Is same as just above it always equal to atmospheric pressure.


31. The metallurgical process in which a metal is obtained in a fused state is called
smelting roasting calcinations froth floatation
32. The molecular formula ofphosphorous is
PI P2 P3 P4
33. The outer planets are composed mostly of

rocks and ice oxygen and nitrogen


hydrogen and helium helium and krypton


34. What powers the Earth's internal heat engine?

radioactivity solar energy


volcanoes ocean tides


35. Which ofthe following features is not associated with a transform plate boundary?

mid-ocean ridge earthquakes


deep sea-trench volcanic activity


36. The number ofelectrons presents in is
zero (B)one two three
37. New seafloor is created at

deep sea trench mid-ocean ridge


subduction zone transform fault


38. Approximately how fast does an Earth lithospheric plate move?

several centimeters per year (B)several centimeters per day


several centimeters per hour several centimeters per second


39. What are the two most abundant elements by mass found in Earth

aluminum and iron sodium and chlorine


calcium and carbon oxygen and silicon


40. What is the dewpoint when the dry-bulb temperature is 24°C and the wet-bulb temperature is 15°C?
8°C -18°C 36°C 4°C
41. Which mineral is white or colorless, has a hardness of2.5, and splits with cubic cleavage?
calcite halite pyrite mica
42. The difference in texture between plutonic and volcanic rocks is caused by

different mineralogy different rates of cooling and crystallization


different amounts ofwater in the magma different chemical compositions


43. Bowen's Reaction Series illustrates relations between

temperature, viscosity, and mineral composition


temperature, chemical composition, and mineral structure


viscosity, temperature, silica content, and volatile content


temperature, pressure, and viscosity


produces a time varying magnetic field and vice versa


once generated, remains self-propagating


is capable to travel across space


All of these


44. The refractive index ofthe ocean water
increases with salinity increases with temperature
decreases with salinity decreases with temperature
45. Electromagnetic radiation

46. Leaf reflectance depends primarily on

the pigments internal cell structure


equivalent water content All ofthese


47. A cut diamond sparkles because of its

Hardness Emission of light by the diamond


High refractive index Absorption of light by the diamond


48.
A plane mirror produces a magnification of zero between zero and

49.
By increasing the temperature, the specific resistance of a conductor and semiconductor


Increases for both Increases, decreases


Decreases for both Decreases for both



50.
In hydrogen atom, when electron jumps from second to first orbit, then energy emitted is

-13.6 eV -6.8 eV -27.2 eV None ofthese

51.
Two identical wires of rubber and iron are stretched by the same weight, then the number of atoms in the iron wire will be


Equal to that ofrubber More than that ofthe rubber


Less than that ofthe rubber None ofthe above



52.
The bulk modulus of an ideal gas at constant temperature


is equal to its volume V is equal to its pressure p


is equal to p/2 cannot be determined



53.
A wire coil carries the current i. The potential ,energy ofthe coil does not depend upon

the value of i whether the coil has an iron core or not
(C)thenumber ofturnsinthecoil (D)theresistance ofthecoil

54.
The weight ofa body atthe centre ofthe earth is


zero same as on the surface of the earth


infinite none ofthe above



55.
A cold soft drink is kept on the balance. When the cap is open, then the weight


increases first increases then decreases


decreases remains same



56.
An object will continue moving uniformly until


the resultant force acting on it begins to decrease


the resultant force is at right angle to its rotation


the resultant force on it is zero


the resultant force on it is increased continuously



57.
The theory of plate tectonics was not initially widely accepted because


land bridges would have blocked plate movement


rocks of the Earth's crust were considered too stiff for continents to move . through them


fossils on South America and Africa did not match


ocean floor mapping showed that older rocks occur away from mid-ocean ridges



58.
The Earth's lithosphere is broken into approximately how many large, rigid plates 100

59.
The process by which an originally homogeneous Earth developed a dense core and a light crust is called

metamorphism differentiation accretion compression

60.
Which of the following is used by geologists to determine the relative ages in a rock sequence?


stratigraphy fossils


cross-cutting relationships all ofthese



61.
The most malleable metal is

platinum silver iron gold

62.
The material which can be deformed permanently by heat and pressure is called a


thermoplastic thermoset


chemical compound polymer



63.
Which thrt?e groups of the Periodic Table contain the most elements classified as metalloids (semimetals)?


and 13 13, and 14


14, 15, and 16 16, 17, and 18



64.
Which of the following is a type of stress?

shear compression tension all the above

65.
Folding occurs when rocks behave as

brittle solids fluids ductile solids none ofthese

66.
A structural basin is a special case of

a dome a syncline an anticline a freak ofnature

67.
A fault is observed where the hanging wall is displaced upward relative to the footwall.


This is a normal fault This is a reverse fault


This is a left-lateral strike-slip fault This is a right-lateral strike-slip fault



68.
Folds whose limbs are horizontal are known as


horizontal layers overturned folds


massively thrusted folds recumbent folds



69.
Which ofthe following determines how quickly groundwater flows?


elevation permeability


water pressure all are important factors for groundwater flow



70.
The average slope angle ofthe continental shelfis

0.1 0 (D)O.Ol°

71.
Which is characteristic ofmid-ocean ridges


shallow focus earthquakes high heat flow


basalt eruptions all ofthese



72.
The oldest seafloor on Earth is not more than


200 million years old 2 billion years old


20 million years old 2 million years old



73.
Fragments ofocean floor that escape subduction are known as

ophiolites migmatites granulites guyots

74.
The value oftanl.tan2.tan3 tan89 is

75.
The height ofa person is 2 m and the length ofhis shadow is 2 3 m. The angle of elevation


4­
ofthe sun is
(A)600 45°