ieso 2011 question and answer key for entrance exam

8/10/2019 IESO 2011 Question and Answer key for Entrance Exam

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Geological Society of India

INTERNATIONAL EARTH SCIENCE OLYMPIAD Entrance Tet

Date: January 23, 2011; Time: 10.30 am to 12.00 noon

Registration No.: Name of the Invigilator: _______________

Candidates Signature: _____________ Invigilators Signature: ________________

Seal of the Centre:

INSTRUCTIONS1.

You have to be present in the examination hall well before the commencement of the

test.

2. You will not be permitted to enter the examination hall 30 minutes after the

commencement of the test.

3. You will not be permitted to leave the examination hall until after 30 minutes of

commencement of the test.

4.

If you have any paper/chit with you, surrender them to the invigilator now.5.

All are multiple-choice questions.

6.

Please use a BLACK ball point pen to mark your answers. DO NOT use pencil.

Choose the MOST appropriate answer.

Darken the circle corresponding to the answer of your choice. An

example:

Question Answer

The shape of the Earth is ___________

(A) Spherical (B) Spheroidal

(C) Ovoid (D) Ellipsoidal

A B C D

Marks will not be awarded if more than one answer is chosen.

Your answer must be given only in the answer sheet (overleaf). Answers

given anywhere else will not be evaluated.7. Please DO NOT tear out or add any sheet from/to the question paper.

8. Please enter your Registration No. and affix your signature on the answer sheet before

starting to answer the questions.


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ANSWER SHEET

Q.No. A B C D Q.No. A B C D Q.No. A B C D Q.No. A B C D

1 26 51 76

2 27 52 77

3 28 53 78

4 29 54 79

5 30 55 80

6 31 56 81

7 32 57 82

8 33 58 83

9 34 59 84

10 35 60 85

11 36 61 86

12 37 62 87

13 38 63 88

14 39 64 89

15 40 65 90

16 41 66 91

17 42 67 92

18 43 68 93

19 44 69 94

20 45 70 95

21 46 71 96

22 47 72 97

23 48 73 98

24 49 74 99

25 50 75 100


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!"etion Pa#er

1 In which of the following climates will chemical weathering be most rapid?a)

Hot and dry

b)

Hot and humid

c)

Cold and dry

d)

Cold and humid

2 In caverns, water containing calcium carbonate solution drips from the ceiling, and

thereby long, cylindrical, pendent concretions known as are formed!a)

"talactites

b)

"talagmites

c)

"peleothems

d)

Caves

# $ineral that is commonly used in gla%ing porcelain is &&&&&&&&&&!

a)

$ica

b)

'eldspar

c)

Clay

d)

(uart%

*ith time, sediment particles transported by rivers become &&&&&&&&&&&&&&&&&!

a)

+laty and smaller

b)

ounded and smaller

c)

+laty and larger

d)

ounded and larger- In which rock type do .arst topography and caves develop?

a)

"ilicate

b)

'elsic

c)

Carbonate

d)

'erric

/ 0his mineral is commonly known by the name fools gold3!

a)

+yrite

b)

Chalcopyrite

c)

4alena

d)

5ron%ite

6 0he most abundant element in the earth isa)

78ygen

b)

$agnesium

c)

Iron

d)

"ilicon

9 :n igneous rock which is characteri%ed by very large crystals of minerals is called a

a)

4ranite

b)

5asalt

c)

+egmatite

d)

7bsidian

; 0he epicenter of an earth describes the &&&&&&&&&&&&!


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a)

+lace of origin of the earth8osphere

1 0his mineral is popularly also known as lodestone3!

a)

Hematite

b)

$agnetite

c)

+yrite

d)

5arite

1- : metamorphic rock which shows alternate bands of dark and light colored minerals is

called

a)

"late

b)

"chist

c)

4neiss

d)

$arble

1/ 0wo hundred and fifty million years ago, the land masses of the >arth were clustered into a

single supercontinent known as

a)

0ethys

b)

4ondwanaland

c)

+angea

d)

>urasia

16 : linear lowland between mountain ranges created by the action of a fault is known as

a)

rift valley

b)

Horst


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c)

0hrust belt

d)

"ubduction Aone

19 $ost of the rocks in tropical regions are often covered by an e8tensive layer of a product

of chemical leaching called

a)

Baterite

b)

5au8ite

c)

:lluvium

d)

Clays

1; :ncient fossils characterised by layers of calcium carbonate precipitated over bacterial

filaments in shallow marine environments are called

a)

Bime muds

b)

"tromatolites

c)

Corallites

d)

Coprolites

2= *hat is the term that is used for the layer of loose, heterogeneous weathered materiallying on top of rocky hill slopes?

a)

"oil

b)

*eathering profile

c)

egolith

d)

:lluvium

21 4ranite is essentially composed of

a)

(uart% and mica

b)

(uart% and feldspar

c)

(uart% and pyro8ene

d)

+yro8ene and plagioclase

22 *hat are detrital sedimentary rocks with large pebbles of other rocks or minerals called?a)

:renites

b)

Conglomerates

c)

4rit

d)

"andstone

2# *hen did dinosaurs become e8tinct?

a)

end of Cretaceous

b)

end of +ermian

c)

end of urassic

d)

end of Holocene

2 *hich biome is often transitional between tropical rainforests and deserts?

a)

eciduous

b)

0emperate forest

c)

chaparral

d)

"avanna

2- In which of the following unconsolidated sediments is porosity the highest?

2/ *hich of the following statements regarding dry lands is D70 correct?


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a)

ry lands are often characteri%ed by infre


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d)

:nticline

#- *hich of the following is least e8pected in a desert?

a)

+layab)

ounded hills

c)

4orges

d)

*ide stream channels

#/ In plate tectonics, plates move and collide with one another! *hen one plate goes down

below another, it is known as a

a)

Collision boundary

b)

"ubduction boundary

c)

"uture %one

d)

Contact point

#6 In which case does a seismic wave travel faster?

a)

0ravelling through rocks

b)

0ravelling through water

c)

0ravelling through air

d)

0ravelling through vacuum

#9 : dendritic drainage pattern will tend to develop in regions

a)

nderlain by regularly spaced Eoints

b)

7f folded rocks

c)

along the flanks of isolated volcanoes

d)

of flatlying sedimentary rocks

#; >gyptian $ummy is not a fossil because

a)

It is a human remnant

b)

It is not naturally preserved

c)

It has soft partsd)

Done of the above

= :rrange the following natural calamities in a chronological searth


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a)

Dondetrital sedimentary formation

b)

etrital sedimentary formation

c)

$etamorphic rocks

d)

Igneous rocks

Intense structural deformation of the earths crust associated with plate tectonics is

referred to as

a)

Continental drift

b)

'olding

c)

'aulting

d)

7rogeny

- :re magnitude and intensity of an earth


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b)

Coriolis and pressure gradient forces

c)

'rictional and hydrostatic forces

d)

'rictional and pressure gradient forces

-# 0he >l DiKo impacts the Indian summer monsoon through

a)

0eleconnections

b)

0elekinesis

c)

Liscous effects

d)

ipole effect

- 0he glacialinterglacial cycles due to orbital variations are also known as

a)

Carnot cycles

b)

abinowit% cycles

c)

$ilankovich cycles

d)

"olar cycles

-- $ost tropical cyclones originate &&&&&&&&&&&&&&&!

a)

5etween =J and -J north and south of the e


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d)

ust before sunrise

/2 0he portion of the atmosphere which e8tends from the earths surface up to 9 miles and

e8periences decrease in temperature at constant rate is

a)

"tratosphere

b)

0ropopause

c)

0roposphere

d)

$esosphere

/# : northerly wind means a &&&&&&&&&&&&&&&&&&!

a)

*ind coming from the north

b)

*ind going towards the north

c)

*ind in the northern hemisphere

d)

*ind in northern India

/ :n empirical measure for describing wind speed based mainly on observed sea conditions

is called the

a)

5eaufort scale

b)

ichter scale

c)

'uEita scale

d)

"torm scale

/- : strong tropical cyclone that developed in the Dorthern Indian 7cean 5asin and caused

the worst natural disaster in 5urma, killing nearly 1==,=== people, was named

a)

.atrina

b)

Dargis

c)

"idr

d)

Irrawady

// elative to the hori%on, as seen from the earthMs southern hemisphere, the sun daily

a)

ises in the east and sets in the west!

b)

ises in the west and sets in the east!

c)

$oves mainly in a northward direction!

d)

$oves mainly in a southward direction!

/6 *hen Lenus has reached its ma8imum eastern elongation from the sun as viewed from

the earth, it is visible in the sky

a)

In opposition to the sun!

b)

:s an evening QstarQ!

c)

:s a morning QstarQ!

d)

In conEunction with the sun!

/9 In order to have a solar eclipse, you need to have

a)

: full moon!

b)

: new moon!

c)

0he moon on or close to the ecliptic!

d)

@5) and @C)


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/; 'rom where on the >arth will we see the Dorth "tar at the hori%on?

a)

Dorth pole

b)

"outh pole

c)

on the >arth

d)

$agnetic forces due to material on >arth and $oon keep them locked in the same

orientation

61 *hich planet canMt be seen high in the sky at midnight?

a)

Lenus

b)

$ars

c)

upiter

d)

"aturn

62 0he river channels observed on $ars are estimated to be about #!; billion years old! How

did astronomers arrive at this age estimate?

a)

5y radioactive age dating of rock samples from the channels!

b)

5y calculating the time it would take for that much water to evaporate on $ars!

c)

5y assuming they are the same age as dry river channels on the >arth!

d)

5y counting the number of craters in the nowdry channels!

6# efracting telescopes always contain which of the following?

a)

$irrors

b)

Benses

c)

'ilm

d)

CC

6 :ccording to .eplerMs Baw, the cube of the mean distance of a planet from the "un is

proportional to the

a)

:rea that is swept out

b)

Cube of the period

c)

"


12/15

66 *hich of the following devices would not work on the $oon?

a)

0hermometer

b)

"pectrometer

c)

"pring balance

d)

"iphon

69 *hich of the following planets has no moons?

a) Ceres

b) $ars

c) Lenus

d) Deptune

6; 0he planet Deptune was discovered by studying the deviations in the orbit of &&&&&&&&&

a)

upiter

b)

ranus

c)

"aturnd)

+luto

9= *hich planet seems to be turned on its side with an a8is tilt of ;9 degrees?

a)

upiter

b)

Lenus

c)

Deptune

d)

ranus

91 *hat is the essential difference between Rray, radio waves and infrared radiation?

a)

wave amplitude

b)

temperature

c)

wavelengthd)

wave velocity

92 0he apparent daily path of the "un in the sky during winter is different from that in

summer, because

a)

the sun revolves

b)

>arthMs distance from the "un changes

c)

the "un rotates

d)

>arthMs a8is is tilted

9# 0he following instrument demonstrates the rotation of the >arth around its a8is!

a)

pendulum clock

b)

'oucaultMs pendulum

c)

spectrometerd)

photomultiplier tube

9 If you were to stand on the $oon, then the position of the >arth in the moon sky

a)

will remain the same with time

b)

will change with time

c)

will not be able to see the >arth from the $oon

d)

none of the above

9- 0he distance of the star nearest to the solar system is

a)

a few million light years

b)

a few light days

c)

a few light years


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d)

a few thousand light years

9/ "emidiurnal tides have

a)

one high and one low daily

b)

two highs and one low daily

c)

one high and two lows daily

d)

two highs and two lows daily

87 *ater entrapped in sediments during their formation is known as

a)

Connate water

b)

$eteoric water

c)

uvenile water

d)

$agmatic water

88 Bysimeter is used to measure

a)

>vaporation

b)

>vapotranspiration

c)

0ranspirationd)

Humidity

89 Isohyet is a line Eoining points having

a)

0he same atmospheric pressure

b)

0he same amount of rainfall

c)

0he same temperature

d)

0he same depth of water table

90 : waterbearing formation sandwiched between two layers of impermeable geological

formation is called &&&&&&&&&&&!

a)

confined a


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b) Clayey

c) Boamy

d)

ed

95 :n unconfined a


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ieso 2011 question and answer key for entrance exam

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