JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II DEVELOPMENT OF MINERAL DEPOSITS Previous Question Paper (May/June - 2019 - R13)
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.
PART A
Define the term “Mineral Deposits”?
Answer
A mineral deposit is a natural concentration of one or more minerals in the Earth's crust that can be extracted and processed to yield a profit under current economic and technological conditions.
List the various pre-Mining Operations?
Answer
- Prospecting and exploration
- Geological and geophysical surveys
- Feasibility studies
- Land acquisition and legal clearances
- Infrastructure development (roads, power, water)
List the Classification of Rock penetration methods?
Answer
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List the uses of Explosives in Mining Industry?
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State the necessity of supports in mine?
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Classify the types of supporting systems?
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What are the different modes of entry to the mineral deposits for mining?
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Write about Tunnel boring machine?
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List the factors for Location of shaft, shape and size?
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List the Surface arrangements for sinking shafts?
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PART B - Unit I
Explain the different types of entry to mineral deposits.
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Give the comprehensive classification of methods of working coal.
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State any Ten mining industries in India along with the type of mineral mined.
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Explain the various stages in life of the mining operations.
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PART B - Unit II
Enumerate the various uses of boreholes in mining engineering.
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Explain the Mechanics of blasting.
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Distinguish between a single tube and double tube core barrel with a neat sketch.
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State the composition of High explosives used in underground.
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PART B - Unit III
Explain the method of setting chocks at different situations.
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Explain withdrawal of supports by safety prop withdrawer with sketches.
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Explain the chock shield supports used in Long wall faces with shearers.
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Explain the method of roof stitching.
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PART B - Unit IV
What are the factors to be considered in choosing the mine Openings i.e., Shaft or Incline?
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Describe the Procedure for Drivage of Tunnel of 6 m width and 4 m height in Hard rock?
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Explain the methods of Opening steeply Inclined Coal seam.
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Explain the mechanized development by Road Headers.
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PART B - Unit V
A shaft of 6 m diameter is being sunk through rocks consisting of shale and sandstone. Describe the method adopted for support of sides.
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Write in detail about the following: i) Temporary Lining of shafts ii) Removal of Debris and water in shaft sinking.
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Describe cementation method of a shaft sinking, including the surface plant, with the help of neat sketches.
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Explain the permanent supporting of the shaft sides by brick walling?
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