Common Section [GATE (Graduate Aptitude Test in Engineering) Geology & Geophysics]: Questions 57 - 62 of 70

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Question 57

Common Section
Principles and Applications of Gravity

Question

MCQ▾

Bouguer correction is applied to correct for the gravity anomaly due to mass between station location and

Choices

Choice (4)Response

a.

Mean sea level

b.

Mohorovicic discontinuity

c.

Base of upper crust

d.

Local datum plane

Question 58

Common Section
Mineralogy and Classification of Common Igneous

Question

Matching-Pair▾

Find matching pair:

Choices

Choice (4)Response

a.

Gabbro

Trachyte

b.

Syenite

Andesite

c.

Granite

Rhyolite

d.

Granodiorite

Basalt

Question 59

Common Section
Magnetic

Question

MCQ▾

The most sensitive instrument for magnetic survey is

Choices

Choice (4)Response

a.

Optically pumped magnetometer

b.

Fluxgate magnetometer

c.

Proton precession magnetometer

d.

Magnetic field balance

Question 60

Common Section
Electromagnetic

Question

MCQ▾

Which one of the following can be best explored using electromagnetic method?

Choices

Choice (4)Response

a.

Coal-bearing strata

b.

Oil-bearing strata

c.

Massive sulphide deposit

d.

Disseminated sulphide deposit

Question 61

Common Section
Mineralogy and Classification of Common Igneous

Appeared in Year: 2014

Question

MCQ▾

An igneous body with a flat top and concave-upward base is known as a________.

(Carry one mark each)

Choices

Choice (4)Response

a.

Lopolith

b.

Laccolith

c.

Stock

d.

Sill

Question 62

Common Section
Magnetic

Appeared in Year: 2014

Question

Match List-Ⅰ List-Ⅱ▾

Match the mineral deposits (listed in Group I) with the most appropriate geophysical exploration method (listed in Group II) . (Carry one mark each)

List-Ⅰ (Group I)List-Ⅱ (Group II)
(A)

Mineralized conductive veins

(i)

Gravity

(B)

Disseminated sulphides

(ii)

Resistivity profiling

(C)

Kimberlite pipes

(iii)

Magnetic

(D)

Massive barytes

(iv)

Induced polarization

Choices

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

a.

  • (iv)
  • (i)
  • (ii)
  • (iii)

b.

  • (iv)
  • (iii)
  • (ii)
  • (i)

c.

  • (ii)
  • (iv)
  • (iii)
  • (i)

d.

  • (ii)
  • (i)
  • (iv)
  • (iii)

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