Geology [GATE (Graduate Aptitude Test in Engineering) Geology & Geophysics]: Questions 65 - 69 of 82

Access detailed explanations (illustrated with images and videos) to 159 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 200.00 -OR-

How to register? Already Subscribed?

Question 65

Appeared in Year: 2014

Question

MCQ▾

From the given Eh-pH diagram, which one of the following pairs can be inferred to be a disequilibrium assemblage? (Carry two marks each)

From the Given Eh-PH Diagram

Choices

Choice (4)Response

a.

Magnetite-pyrite

b.

Pyrite-siderite

c.

Hematite-pyrite

d.

Hematite-magnetite

Question 66

Question

MCQ▾

Ca-montmorillonite is formed by the chemical weathering of

Choices

Choice (4)Response

a.

Forsterite

b.

Augite

c.

Calcite

d.

Orthoclase

Question 67

Question

Assertion-Reason▾

Assertion(Ꭺ)

Biaxial minerals can be pleochroic in three shades.

Reason(Ꭱ)

Biaxial minerals have three refractive indices.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question 68

Geology
Forms and Twinning

Appeared in Year: 2014

Question

MCQ▾

Which one of the following represents a closed crystallographic form? (Carry two marks each)

Choices

Choice (4)Response

a.

Hexagonal prism

b.

Ditetragonal prism

c.

Tetragonal pyramid

d.

Hexagonal dipyramid

Question 69

Appeared in Year: 2013

Question

Match List-Ⅰ List-Ⅱ▾

Match the minerals in Group I with its corresponding industrial application in Group II.

List-Ⅰ (Group I)List-Ⅱ (Group II)
(A)

Kaolinite

(i)

Asbestos

(B)

Rutile

(ii)

Lubricant

(C)

Serpentine

(iii)

Pigment

(D)

Graphite

(iv)

Cement

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iii)
  • (i)
  • (iv)

b.

  • (iv)
  • (iii)
  • (i)
  • (ii)

c.

  • (iii)
  • (iv)
  • (ii)
  • (i)

d.

  • (i)
  • (iv)
  • (ii)
  • (iii)

Developed by: