GATE GG-1 topic:geoscience PYQs & Answers — Page 52

Questions 511–520 of 650. Imported answers require independent review unless marked reviewed.

Match the economic deposits in Group I with their occurrence in stratigraphic units in Group II.

Group I P. Phosphate Q. Manganese R. Chrome S. Barite

Group II

Sargur Group

Nallamalai Group

Udaipur Formation

Mansar Formation

Your answerChoose one option.

P-1, Q-3, R-4, S-2

P-3, Q-4, R-2, S-1

P-2, Q-1, R-4, S-3

P-3, Q-4, R-1, S-2

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Match the basin type in Group I with Indian example provided in Group II.

Group I P. Foreland basin Q. Passive margin R. Fore-arc S. Failed rift

Group II

Kerala-Konkan

Cambay

Ganga

Andaman

Your answerChoose one option.

P-3, Q-2, R-4, S-1

P-3, Q-1, R-4, S-2

P-4, Q-1, R-3, S-2

P-1, Q-2, R-4, S-3

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Choose the CORRECT set of statements.

Statement I: The hydrocarbon source rock in Cambay basin is of Jurassic age. Statement II: Boholla field is in Assam basin. Statement III: Toluene is an aromatic hydrocarbon. Statement IV: Porosity of a reservoir rock increases with increase in sorting.

Your answerChoose one option.

I, II and III

II, III and IV

I and IV

I and II only

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The figure given below represents a scatter plot of Digital Numbers (DN) of Band 4 and Band 5 of a satellite imagery. The fields of Class A and Class B are denoted by the rectangular boxes along with their class means (open circles). Class assignment for the point P by Minimum Distance to Mean (MDM) and Nearest Neighbor (NN) algorithms are ________.

Diagram for Geology and Geophysics question 49

Your answerChoose one option.

Class A by MDM and class B by NN

Class A by NN and class B by MDM

Class A by both MDM and NN

Class B by both MDM and NN

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Hydrogeological setup of a hypothetical alluvial area (where contact X-Y between two sands is vertical) is given in the schematic section. Hydraulic heads are indicated as h1, h2 and hydraulic conductivities as K1 and K2. The hydraulic head at the contact (X-Y) is ________ m. (round off to 2 decimal places).

Diagram for Geology and Geophysics question 50

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The normalized longitudinal profile of a river is given below. The Concavity Index of the river is ________ %.

Diagram for Geology and Geophysics question 51

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

For producing 1 kg of gold from an ore having an assay of 2 ppm Au, ________ × 10³ kg of ore needs to be processed.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A cylindrical core of granite with a radius of 25 mm was subjected to point load test. The load was applied parallel to the diameter of the core and the failure load was 20 kN. The uncorrected point load strength index is ________ MPa.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A hypothetical garnet peridotite composed of 60% olivine, 25% orthopyroxene, 10% clinopyroxene and 5% garnet undergoes 10% batch melting described by

where F is degree of melting and D is bulk partition coefficient. The ratio of Ce in the melt to the original rock will be ________. (round off to 2 decimal places). (The K_D values of Ce for olivine, orthopyroxene, clinopyroxene and garnet are 0.01, 0.003, 0.10 and 0.02, respectively)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

⁸⁷Rb decays to ⁸⁷Sr with a decay constant λ = 1.42 × 10⁻¹¹ per year. If at the time of formation, a system contains 8 × 10⁴ atoms of ⁸⁷Rb and 10³ atoms of ⁸⁷Sr, the number of ⁸⁷Sr atoms in this system at the end of 4 half-lives will be ________ × 10³. Assume close system evolution for parent-daughter pair.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE GG-1 topic:geoscience PYQs

Question 46

Question 47

Question 48

Question 49

Question 50

Question 51

Question 52

Question 53

Question 54

Question 55