JNTU
JNTU B.Tech III INTRODUCTION TO MINING TECHNOLOGY Previous Question Paper (May/June - 2019 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
What is the India’s coal production for the last two years?
Answer
India's coal production was approximately 893.08 million tonnes in the financial year 2022-23 and reached approximately 997.26 million tonnes in the financial year 2023-24.
What are the different Ranks of Coal?
Answer
The ranks of coal, based on the degree of metamorphism and carbon content, are: Peat, Lignite (brown coal), Sub-bituminous coal, Bituminous coal, and Anthracite.
What are the advantages of wire line drilling?
Answer
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What is mean by borehole deviation?
Answer
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What is in-the-seam Mining?
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What are the main features of Pit-bottom?
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What is a Booster explosive?
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What are permitted explosives?
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What is the need of permanent lining?
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What are the conditions suitable for freezing method?
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Part B
Mining contributes civilization. Justify and discuss.
Answer
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Discuss the role of mining in improving the national Economy.
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What are the conditions suitable for opening of deposits by Audits?
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What are the advantages and disadvantages of Audits?
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Explain the factors to be considered while selecting the site of a shaft.
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Explain principle and operation of rotary drilling.
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What do you mean by core recovery?
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What are the advantages and disadvantages of rotary drilling?
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What are the types of permitted explosives?
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Explain the tests for permitted explosives.
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What are the advantages of Emulsion explosives over slurry explosives?
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What are the precautions to be taken while storage and handling of explosives?
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What are the special methods of shaft sinking?
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Explain freezing method of sinking method.
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What is the need of shaft lining?
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Explain the procedure of drilling and blasting during shaft sinking.
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