Minerals Resources (Part-III)

Total Questions: 50

11. Assertion (A): Lignite is an inferior variety of coal containing 35-40 percent of Carbon. [U.P.U.D.A./L.D.A. (Pre) 2002]

Reason (R): Jharkhand is the largest producer of lignite in India.

In the context of the above statements which of the following is true:

Code:

Correct Answer: (c) (A) is true, but (R) is false.
Solution:Lignite is an inferior variety of coal containing 40-55 percent of Carbon. Lignite coal is mainly produced (2020-21, P) in two States - Tamil Nadu and Gujarat, Neyveli is the lignite field in Tamil Nadu and it is the lignite coal mine of India.

12. Largest deposit of lignite coal is found in India at- [U.P.U.D.A./L.D.A. (Pre) 2013]

Correct Answer: (d) Tamil Nadu
Solution:Lignite is an inferior variety of coal containing 40-55 percent of Carbon. Lignite coal is mainly produced (2020-21, P) in two States - Tamil Nadu and Gujarat, Neyveli is the lignite field in Tamil Nadu and it is the lignite coal mine of India.

13. Which one of the the following is largest lignite coal field in India? [U.P. B.E.O. (Pre) 2019]

Correct Answer: (d) Neyveli
Solution:Neyveli, located in Tamil Nadu, has the largest reserves of lignite coal in India. According to data of IMYB 2021, Tamil Nadu tops in both reserves and production of lignite coal.

14. Which State has the largest reserves of Lignite Coal [U.P.P..C.S. (Mains) 2011]

Correct Answer: (d) Tamil Nadu
Solution:According to Minerals Year Book 2021, there are total of 4981 thousand tonnes of reserves of Lignite coal in India. In this total reserve, the State of Tamil Nadu has a maximum share with 4571 thousand tonnes of coal reserve.

15. Assertion (A): The inter-state movement of coal form a major component of inter-state traffic handled by railways. [U.P.U.D.A./L.D.A. (Pre) 2010]

Reason (R): Bengal-Jharkhand coalfields are major source of coal supply to the northwestern states.

Select the correct answer from the code given below:

Code:

Correct Answer: (a) Both (A) and (R) are true, and (R) is the correct explanation of (A).
Solution:Bengal-Jharkhand coalfields are a major source of coal supply to north-western states and the supply of inter-state coals is handled by Railway. They form a major component of handling inter State traffic. Thus, both (A) and (R) are true and (R) is the correct explanation of (A).

16. Bisrampur is famous for the mining of - [U.P.P.C.S. (Pre) 2008, U.P. Lower Sub. (Pre) 2004]

Correct Answer: (c) Coal
Solution:Bisrampur in Surajpur district of Chhattisgarh is famous for coal mining.

Coal is one of the most important primary fossil fuels, a solid carbon-rich material that is usually brown or black and most often occurs in stratified sedimentary deposits. Coal is a natural resource that can be used as a source of energy, and in the production of coke for metallurgical processes.

Coal is a major source of energy in the production of electrical power using steam generation. In addition, gasification and liquefaction of coal produce gaseous and liquid fuels that can be transported by pipeline and stored in tanks.

17. Match List-I with List-II and choose the correct answer using codes given below: [U.P.U.D.A./L.D.A. (Spl.) (Mains) 2010]

List I (Coalfields)List II (States)
A. Karanpura1. Chhattisgarh
B. Singareni2. Tamil Nadu
C. Neyveli3. Jharkhand
D. Korba4. Andhra Pradesh

Code:

CodeABCD
(a)4132
(b)1243
(c)3421
(d)2314
Correct Answer: (c)
Solution:The correct match of coalfields with their respective States is as follows:
CoalfieldState
KaranpuraJharkhand
SingareniAndhra Pradesh (Now in Telangana)
NeyveliTamil Nadu
KorbaChhattisgarh

18. Despite having large reservés of coal, why does India import millions of tonnes of coal? [I.A.S. (Pre) 2012]

1. It is the policy of India to save its own coal reserves for the future, and import it from other countries for the present use.

2. Most of the power plants in India are coal-based and they are not able to get sufficient supplies of coal from within the country.

3. Steel companies need a large quantity of coking coal which has to be imported.

Which of the statement(s) given above is/are correct?

Correct Answer: (b) 2 and 3
Solution:Indian steel companies require a huge amount of coking coal. In order to fulfil that requirement, a huge amount of good quality of coal is imported which is not available in India. Most of the electric power plants in India are coal-based. Hence-internal supply of coal is not properly fulfilled. This is one more reason that coal is imported.

19. With reference to two non-conventional energy sources called 'coalbed methane' and 'shale gas', consider the following statements: [I.A.S. (Pre) 2014]

1. Coalbed methane is the pure methane gas extracted from the coal seam, while shale gas is a mixture of propane and butane only that can be extracted from fine-grained sedimentary rocks.

2. In India, abundant coalbed methane sources exist, but so far no shale gas sources have been found. Which of the statements given above is/are correct?

Correct Answer: (d) Neither 1 nor 2
Solution:Coalbed Methane and Shale Gas are unconventional sources of energy. Coalbed Methane is 90% more pure methane gas extracted from the coal seam. Shale gas is extracted from fine-grained sedimentary rocks.

Shale gas is not only a mixture of Propane and Butane but it also contains more than 86% of Methane, 4% Ethane, 1% Propane and various other gases. Thus, statement 1 is wrong.

Abundant coalbed methane sources exist, and also a huge deposit of shale gas is found in the Indo-Gangetic plain, Assam, Gujarat, Rajasthan and coastal region of India

20. Consider the following problems being faced by the Indian coal industry- [53rd to 55th B.P.S.C. (Pre) 2011]

I. Poor quality of coal and bottlenecks in the coal  movement.

II. Low utilisation capacity of washeries.

III. Growing dependence on the import of coking coal..

IV. Administered prices.

Which of the above are correct.

Correct Answer: (b) I, II, III and IV
Solution:Currently, coal industry in India is facing a lot of challenges which are low-quality coal, deficiency in coal washing establishment, high import of coking coal and administered prices etc.