JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III MINERAL PROCESS ENGINEERING Previous Question Paper (May - 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.
Part A
What is mineral Processing?
Answer
Mineral processing is the art and science of treating crude ores and mineral products to separate valuable minerals from the associated gangue minerals by taking advantage of differences in their physical or chemical properties.
What is Beneficiation?
Answer
Beneficiation is the process of improving the economic value of an ore by removing the gangue minerals, which results in a higher grade product (concentrate) and a waste product (tailings).
What is primary Crushing?
Answer
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What are different types of primary crushers available in the industry?
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What are Industrial Screens? List some examples.
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What is gravity Concentration? What are the minerals that can be seperated with this principle?
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What are the collectors used in froth flotation?
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What are the Physico Mechanical properties of Froth Flotation?
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What are the methods of concentration that can be applied to magnetic seperation?
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What is magnetic method of seperation? Give some examples
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Part B
What are the scope, objectives and limitations of mineral processing? Explain how it can be done in case of copper ore?
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Differentiate between Crushing and Griniding. Explain the process of grinding with a neat sketch.
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What are different types of crushers used in the industry? Explain about Jaw Crushers with a neat sketch.
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Classify Tumbling Mills into different categories. Explain with a neat sketch the Ball mill and its operations.
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Classify the Industrial Screens. Explain Vibrating screens with a neat sketch.
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What kinds of gravity separation are there in the industry? Explain about them in brief.
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What is the basic principle of froth floatation process? Explain how the copper ore is processed by flotation process?
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What are different Electrical Methods of Concentration? Explain their principle, Fields of applications and limitations.
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How minerals can be classified based on magnetic field? Explain the process of seperation of Magnetic minerals from its Non-magnetic minerals with a neat sketch.
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Draw a flow sheeet diagram of coal and explain how coal can be processed in coal screening plant?
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