GATE Geology and Geophysics - GATE 2017-2018 Questions and Answers

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In a remotely sensed data of a planet, the presence of hydrous species can be inferred using _________region of the electromagnetic spectrum?

Radiowave

Gamma

Infrared

Visible

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Amongst the following, which one will have the highest P-wave velocity?

Granite

Diamond

Shale

Talc

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Assuming the Earth to be a perfect sphere, its equatorial velocity is approximately __________ km/hr

1600 to 1700

2000 to 2100

1200 to 1300

1800 to 1900

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Both strength and plasticity of a rock increase with the

increase in temperature

decrease in strain rate

increase in confining pressure

increase in pore fluid pressure

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Amongst the following options, the acceptable value of the Poisson's ratio of a rock is

0.55

1.00

0.25

-1.00

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The acceleration due to gravity, 'g' is maximum at

equator

poles

mid-latitudes

sub-tropical regions

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The most abundant mineral in the Earth's crust is

quartz

K-feldspar

biotite

garnet

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Acoustic impedance is the _____________ of density and velocity.

sum

difference

product

ratio

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Choose the diamagnetic mineral from the following.

Calcite

Enstatite

Pyrite

Ilmenite