GATE GG-1 2018 Paper 1 — page 9

Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.

The geoid can be best defined as

Your answerChoose one option.

an oblate spheroid that best approximates the shape of the earth.

a surface over which the value of gravity is constant.

the physical surface of the earth.

an equipotential surface of gravity of the earth.

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For a layered isotropic medium with a flat horizontal free surface, match the wave types listed in Group-I with their corresponding polarizations listed in Group II.

Group-I

P. P-waves Q. S-waves R. Rayleigh waves S. Love waves

Group-II

Particle motion is transverse to the direction of wave propagation.

Particle motion is transverse to the direction of wave propagation and is confined to the horizontal plane.

Particle motion is parallel to the direction of wave propagation.

Particle motion is elliptical.

Your answerChoose one option.

P-1; Q-3; R-4; S-2

P-3; Q-1; R-4; S-2

P-3; Q-1; R-2; S-4

P-2; Q-3; R-1; S-4

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A ‘gentle’ fold with an interlimb angle equal to 160° appears tight (apparent interlimb angle equal to 20°) in horizontal section. According to the plunge of the fold axis, it can also be classified as

Your answerChoose one option.

horizontal fold.

gently plunging fold.

steeply plunging fold.

vertical fold.

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2018 · Paper 1

Question 15

Question 16

Question 17