GATE GG-1 topic:earth-science PYQs & Answers — Page 24

Questions 231–240 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 24 of 65

The number of lattice points in a face-centered cubic unit cell is

Your answerChoose one option.

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All the faces of an octahedron can be collectively symbolized by

Your answerChoose one option.

111

[111]

(111)

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Shallow-focus earthquakes with tensional focal mechanism are characteristic of

Your answerChoose one option.

subduction zones.

continental shear zones.

transform faults.

mid-ocean ridges.

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90% of the bulk Earth is constituted of Fe, Si, O and

Your answerChoose one option.

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Which of the following is/are slope stabilization method(s)?

Your answerSelect all correct options. You can choose more than one.

Bolting

Application of shotcrete

Use of impression packer

Use of geogrid

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The amount of Fe in a sample of 25 g of pyrrhotite (FeS) is __________ g. (Atomic wt. of Fe = 55.85 and S = 32.06) [round off to 2 decimal places]

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The rate of spreading about a symmetric spreading center at the middle of a 4000 km wide sea is 40 mm/year. The spreading began _______ million years before present. [in integer]

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A vertical aerial photograph is obtained over flat terrain with a 30 cm focal-length camera lens from an altitude of 1828 m. If the width of a dolerite dyke on this vertical photograph is 2 mm, its actual width on the terrain is __________ m. [round off to 2 decimal places]

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The decay constant of a radioactive isotope is 1.21 × 10⁻⁴ year⁻¹. The half-life of the isotope is _______________ years. [round off to nearest integer]

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The given outcrop pattern on a flat topography represents

Diagram for Geology and Geophysics question 45

Your answerChoose one option.

antiform with axial culmination.

hor(iz)ontal fold.

plunging antiform.

synform with axial depression.

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GATE GG-1 topic:earth-science PYQs

Question 36

Question 37

Question 38

Question 39

Question 40

Question 41

Question 42

Question 43

Question 44

Question 45