JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III INTRODUCTION TO MINING TECHNOLOGY Previous Question Paper (July/August - 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
(25 Marks)
Define the term “Out crop”.
Answer
An outcrop is the exposure of a mineral deposit or rock formation at the surface of the earth, where it is not covered by soil or vegetation.
List the classification of methods of working coal.
Answer
Methods of working coal are primarily classified into two categories:
- Underground Mining Methods (e.g., Bord and Pillar, Longwall mining)
- Opencast (Surface) Mining Methods
Define the term “reclamation”.
Answer
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List the stages of opencast mining.
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List the various types of drill bits.
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Differentiate between Exploratory drilling and Production Drilling.
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List the different types of Exploders.
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List the precautions to be taken during and after blasting in mines.
Answer
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State the purpose of “water garland”.
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List the Modern methods of Shaft sinking.
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Part B
(50 Marks)
State contribution of mining to civilization.
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List the various Mining Industries in the state of Telangana.
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Explain the various stages in the life of the mine.
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Explain about the distribution of following mineral deposits in Telangana. State which is 29th newly formed state in India. i) Coal ii) Granite iii) Lime stone
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What are the different modes of entry to the mineral deposits for mining? Mention the fields of application of each mode of entry in brief.
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Explain the terms i) Prospecting ii) Exploration
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State the comparison of various Modes of entry into deposits for underground mining.
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Describe the different stages in an overall life of mine.
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Explain the Principles of rock drilling.
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Explain place of application, function and operation of JUMBO DRILL in underground coal mines.
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Describe the drilling rings.
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Describe place of application, function and operation of Hydraulic drill.
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Describe the construction and working of an electronic detonator with a neat sketch.
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Explain the Direct and inverse initiation with sketch.
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List the characteristics of Explosives.
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What are role of cut holes, easers and trimmers in underground blast design?
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Shaft centering arrangement
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Walling scaffold.
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Describe cementation method of a shaft sinking, including the surface plant, with the help of neat sketches. The answer should also include the suitability of the method, advantages, disadvantages and limitations.
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