Minerals Resources Part-II

Total Questions: 51

31. On the outline map of India (a), (b), (c) and (d) depict the location of four coal fields. Which one of the following is not correctly shown on the map? [Uttarakhand P.C.S. (Pre) 2012]

(a) Satpura
(b) Son valley
(c) Korba
(d) Karanpura

Correct Answer: (d) Karanpura

Solution:According to the above map, option (d) is depicted wrong as Karanpura is a coalfield located in the State of Jharkhand. Location of all other places in the map is approximately correct.

32. Which one of the following rock systems in India is the main source of coal deposits? [U.P.P.C.S. (Pre) 2008, U.P. U.D.A./L.D.A. (Pre) 2006]

(a) Dharwar system
(b) Gondwana system
(c) Cuddapah system
(d) Vindhyan system

Correct Answer: (b) Gondwana system

Solution:The coal deposits in India are primarily concentrated in the Gondwana sediments occurring mainly in the eastern and central parts of Peninsular India, although Gondwana coal deposits also occur in Assam and Sikkim in North Eastern part of the country. According to data of IMYB 2021, more than about 99% coal (as on April 2021) deposites and production has been covered by Gondwana Coal

33. Which of the following rock systems provides over 90% of the coal of India? [U.P.P.C.S. (Pre) 2017]

(a) Vindhyan system
(b) Dharwar system
(c) Tertiary system
(d) Gondwana system

Correct Answer: (d) Gondwana system

34. Which of the following systems of rocks provides maximum amount of coal in India? [U.P. R.O./A.R.O. (Pre) (Re-Exam) 2016]

(a) Dharwad System
(b) Gondwana System
(c) Vindhyan System
(d) Tertiary System

Correct Answer: (b) Gondwana System

35. Which of the following is/are the characteristic/char- acteristics of Indian coal? [I.A.S. (Pre) 2013]

1. High ash content

2. Low sulphur content

3. Low ash fusion temperature

Select the correct answer using the code given below -

(a) 1 and 2
(b) Only 2
(c) 1 and 3
(d) All of these

Correct Answer: (a) 1 and 2

Solution:Coal in India is found exclusively in two areas: (i) Gondwana region and (ii) Kalp region. The coal of Gondwana region is of high grade. The quantity of ash is less and thermogenic power is high whereas the coal of the third Kalp region is of inferior quality. It is rich in sulfur and therefore not used for certain Industries. According to data of IMYB 2021 (as on April 1, 2021) most of India's coal is obtained (more than about 99%) from the Gondwana region. Most bituminous coal is found here, it has low amount of sulfur.os niam

36. Which one of the following is the appropriate reason for considering the Gondwana rocks as most important of rock systems of India? [I.A.S. (Pre) 2010]

(a) More than 90% of limestone reserves of India are found in them
(b) More than 90% of India's coal reserves are found in them
(c) More than 90% of fertile black cotton soils are spread over thembu
(d) None of the reasons given above is appropriate in this context

Correct Answer: (b) More than 90% of India's coal reserves are found in them

Solution:According to data of IMYB: 2021 (as on April 1, 2021), more than about 99% of coal reserves of India are found in Gondwana region.

India is rich in ancient coal fields like Gondwana coalfields (250 million years old) and tertiary coalfields (15-60 million years old). Coal mining was started during the rule of the East India Company in 1774 in the Raniganj coalfield along the western bank of the Damodar river. To increase coal production, the focus of the Government is on accelerating domestic production of coal through the allocation of more coal blocks, pursuing with the State Government for assistance in land acquisition, and coordinated efforts with Railways for the movement of coal.

37. At the present state of our knowledge and resource position, India will remain self-sufficient for the next three decades in- [I.A.S. (Pre) 1993]

(a) Tin
(b) Coking coal
(c) Copper
(d) Petroleum

Correct Answer: (b) Coking coal

Solution:According to Energy Policy report, (Plannnig Commission), the petroleum reserves in India will be depleted in 22 years, Gas reserves in 30 years and Coal reserves in 80 years. According to IMYB Report, 2021 about 352126 million tonnes of coal resources upto 1200m depth have been established in the country as on 1 April, 2021 of the total resource share, the share of prime coking coal is 5313 million tonnes, medium-coking is 28080 million tonnes & semi-coking is 1708 million tonnes and non-coking coal is 317026 million tonnes.

38. Given below are two statements, one labelled at Assertion (A) and the other as Reason (R)? [U.P. B.E.O. (Pre) 2019]

Assertion (A) : According to Geological Survey of India the total reserve of all grade coal in India is 293.50 billion tonnes.

Reason (R): More than half of total proved reserve of coal of the country is found in two State - Jharkhand and Odisha.

Choose the correct answer from the codes given below:

Codes:

(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true but (R) is the correct bexplanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.

Correct Answer: (b) Both (A) and (R) are true but (R) is the correct bexplanation of (A).

Solution:According to data of IMYB 2021, (as on 1 April, 2021) of coal in India are 352.126 billion tonnes. And more than half of total proved reserve of coal of the country are found in two states Jharkhand and Odisha.

The Public Service Commission has considered the answer of this question as an option (b), while (R) is correct. Hence the correct answer will be an option (d).

39. Consider the following statements with reference to coal? [U.P. R.O./A.R.O. (Pre) 2023]

1. India is one of the world's leading producer of coal.

2. India has vast coal reserves in states like Jharkhand and Chhattisgarh.

Select the correct answer from the code given below:

Code:

(a) Only 2
(b) Both 1 and 2
(c) Neither 1 nor 2
(d) Only 1

Correct Answer: (b) Both 1 and 2

Solution:According to the Indin Minerals Year Book, 2021, China is the largest producer of coal and lignite with about 50% share in the total world production of coal in the year 2020. It is followed by India (9.08%), United State of America (5.7%), Indonesia (7.35%), Australia (6.08%) and Russia (5.19%) respectively.

As of April 1, 2021, Jharkhand, Chhattisgarh, Odisha are major states they have largest number of coal reservs.

40. The descending order of the state in coal production is- [43rd B.P.S.C. (Pre) 1999]

(a) Bihar, Madhya Pradesh, West Bengal
(b) Madhya Pradesh, West Bengal, Bihar
(c) West Bengal, Madhya Pradesh, Bihar
(d) Bihar, West Bengal, Madhya Pradesh

Correct Answer: (a) Bihar, Madhya Pradesh, West Bengal

Solution:In the year 1999 (when the question was asked) the production of coal in undivided Bihar (including Jharkhand) was more than that of undivided Madhya Pradesh (including Chhattisgarh). Thus, the correct answer was option (a). At present [2020-21(P)], the three largest coal-producing state in India are: 1. Chhattisgarh, 2. Odisha, 3. Madhya Pradesh.

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