GATE (Graduate Aptitude Test in Engineering) Geology & Geophysics: Questions 66 - 69 of 158

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Question 66

Appeared in Year: 2014

Question

MCQ▾

In an ore mine exposing stratified sulfide ore with sulfide bands having thickness between 10 and 100 cm, which one of the following sampling methods is the most appropriate?

(Carry two marks each)

Choices

Choice (4)Response

a.

Grab sampling

b.

Channel sampling

c.

Chip sampling

d.

Bulk sampling

Question 67

Classification

Appeared in Year: 2014

Question

Match List-Ⅰ List-Ⅱ▾

Match the alkaline rocks listed in Group I with their characteristics listed in Group II

(Carry two marks each)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Basanite

(i)

Ultrapotasic volcanic rock

(B)

Shonshonite

(ii)

K-rich basalt

(C)

Lamproite

(iii)

Feldspathoid-bearing basalt

(D)

Nephelinite

(iv)

Volcanic rock lacking feldspar

Choices

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

a.

  • (ii)
  • (i)
  • (iii)
  • (iv)

b.

  • (iii)
  • (ii)
  • (i)
  • (iv)

c.

  • (i)
  • (iii)
  • (ii)
  • (iv)

d.

  • (ii)
  • (iii)
  • (i)
  • (iv)

Question 68

Strain and Material Respons

Question

MCQ▾

Which one amongst the following rocks commonly has highest unconfined compressive strength?

Choices

Choice (4)Response

a.

Fossiliferous limestone

b.

Massive basalt

c.

Mica schist

d.

Coarse-grained sandstone

Question 69

Appeared in Year: 2014

Question

MCQ▾

The maximum amount of hydrogen (dry mineral matter free basis) in bituminous-anthracite is (Carry two marks each)

Choices

Choice (4)Response

a.

15 - 20 %

b.

20 - 25 %

c.

Less than 10 %

d.

10 - 15 %

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