JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II Year DEVELOPMENT OF MINERAL DEPOSITS Previous Question Paper (April/May - 2023 - R18)
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
List the positive and negative aspects of mining.
Answer
Positive aspects: Essential for economic growth, providing raw materials for infrastructure, energy, and manufacturing, and creating significant employment opportunities. Negative aspects: Causes environmental degradation such as land subsidence, deforestation, water pollution, and noise/dust generation, alongside potential occupational health hazards for workers.
State brief procedure of obtaining mining leases as per Law.
Answer
The procedure involves: 1. Identification of the mineralized area. 2. Submission of an application for a Prospecting License or Mining Lease to the State Government. 3. Verification of land status and environmental/forest clearances. 4. Grant of lease by the State Government followed by the execution of the lease deed and registration.
What is meant by the detonators?
Answer
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List the various Blasting patterns.
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Define the term “Safari support”.
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What are the objectives and limitations of Mine supports?
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List the factors to be considered for the selection of adits.
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List the type of Road headers and its applications.
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Enlist the various factors consider to select a site for sinking a Main shaft.
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List the special methods of shaft sinking.
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Part B
Explain the various stages in the life of the mine.
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Elaborate on contribution of Mining activity in the cause of human civilization.
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List the various Mining Industries in the state of Telangana.
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Compare underground mining vs opencast mining.
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Explain briefly about Detonating fuse with the help of neat sketches and show the various joints in the detonating fuse.
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State the purpose and applications of drilling operations in mining activities.
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State the choice of Drilling methods in Production drilling.
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State the Principles of Drilling and explain.
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Illustrate the Principle of working of the Hydraulic prop with sketch.
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Explain the withdrawal of supports by safety prop withdrawer with sketch.
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In a mine a heavy roof fall has taken place at a junction of a main road way. Describe how you would clear it.
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Illustrate the Principle of working of the Roof bolts with sketch.
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What are the factors to be considered in choosing the mine Openings i.e., Shaft or Incline?
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State the principle and working of TBM.
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Explain about the advantages and disadvantages of shafts and inclines for opening of mineral deposits.
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Describe the drivage of Long headings by Road headers for Long wall panel system.
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Describe a method of shaft sinking through water bearing strata.
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Write in Detail about of the following: i) Temporary Lining of shafts ii) Removal of Debris and water in shaft sinking.
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Sketch and Explain the Drilling blasting operations in a sinking shaft.
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Explain the method of shaft sinking by Cementation Process.
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