Geology [GATE (Graduate Aptitude Test in Engineering) Geology & Geophysics]: Questions 1 - 6 of 82

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Question 1

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Appeared in Year: 2013

Write in Short

Short Answer▾

The void ratio (in percentage) of sandstone is 25. Its porosity in percentage is ________.

Question 2

Geology
Ore Forming Processes vs. Ore-Rock Association (Magmatic, Hydrothermal, Sedimentary, Supergene and Metamorphogenic)

Question

MCQ▾

Ore deposit with significant content of molybdenum occurs in

Choices

Choice (4)Response

a.

Basic-Ultrabasic Rocks

b.

Volcanogenic (Rhyolitic) Sedimentary Rocks

c.

Thin Layers of Shale

d.

Andesite Porphyry

Question 3

Question

MCQ▾

Specific discharge of 1 cm per day is observed in a porous medium where hydraulic head difference is 0.5 m and flow length is 20 m. calculate the hydraulic conductivity (in m/day) .

Choices

Choice (4)Response

a.

1.6

b.

0.4

c.

1.2

d.

0.8

Passage

The following figure gives Mohr envelope for a rock and Mohr circle in a particular stress condition.

Fracturing occurs when the Mohr circle touches the Mohr envelope at B.

Fracturing Occurs when the Mohr Circle

Question 4 (1 of 2 Based on Passage)

Question

MCQ▾

What is the dihedral angle?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 5 (2 of 2 Based on Passage)

Question

MCQ▾

What type of fractures will develop in the rock?

Choices

Choice (4)Response

a.

Conjugate shear fractures

b.

Hybrid extension-shear fractures

c.

Columnar fractures

d.

Extension fractures

Question 6

Geology

Appeared in Year: 2013

Question

MCQ▾

The stereographic projection below shows the principal stress axes and fault planes. The projection represents a ________.

The Stereographic Projection

Choices

Choice (4)Response

a.

Normal Fault

b.

Dextral Fault

c.

Sinistral Fault

d.

Reverse Fault

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