JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III Year INTRODUCTION TO MINING TECHNOLOGY Previous Question Paper (January/February - 2023 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Which country has more mineral deposits?
Answer
Russia is widely considered to have the world's largest mineral deposits, possessing vast reserves of coal, iron ore, natural gas, oil, and various precious metals. Its extensive landmass and diverse geological formations contribute to it being one of the most mineral-rich nations globally.
What do you mean by overburden?
Answer
In surface mining, overburden refers to the layer of soil, rock, and vegetation that lies directly above a target mineral deposit or coal seam. This material must be removed or stripped away to gain access to the underlying resource.
The process of removing this material is known as stripping. The thickness and nature of the overburden are critical factors in determining the economic viability of a surface mining operation, as they dictate the stripping ratio, which is the volume of overburden that must be moved to extract a unit of the mineral.
What is a mineral deposit?
Answer
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What do you mean by reclamation?
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What is the process of drilling?
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Discuss about drill bits.
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What are the types of explosives?
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What are substitutes for explosives?
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What do you mean by blasting?
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What is the purpose of shaft sinking?
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Part B
Explain in detail the distribution of minerals in India.
Answer
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Explain how does mining contribute to the economy of a country.
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Explain the development and exploitation stages in mining.
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Explain the selection and identification of location of mineral deposits.
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Explain the hydraulic drills in detail.
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Explain the jumbos and their applications.
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How do you classify explosives? Explain the composition, properties and tests of these explosives in detail.
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Explain in detail the detonators, blasting devices and accessories used in mining.
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Explain in detail about shaft supports and lining with the help of neat diagrams.
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Explain various ordinary methods of shaft sinking.
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