GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- VII (New) EXAMINATION — WINTER 2019
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Subject Code: 2172204 Date: 03/12/2019Subject Name: Mineral Processing
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Define the following term: (1) Ore (2) Mineral (3) Crushing. 03
(b) Explain sieve analysis. 04
(c) Define Classification. Explain classifier with sketch. 07
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Q.2 (a) What is the purpose of Collectors? 03
(b) Write a short note on basic fundamental of ore dressing. 04
(c) Explain Comminution and Liberation in detail. 07
OR
(c) Describe Electrostatic Separation in detail. 07
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Q.3 (a) Draw flow sheet of Bituminous coal. 03
(b) Write a short note on Ball mill. 04
(c) Differentiate between Crushing and Grinding. 07
OR
Q.3 (a) What is gravity concentration? 03
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(b) Write note on Jigging. 04(c) Explain Heavy Media Separation with neat sketch. 07
Q.4 (a) What is shaking table. 03
(b) Write a short note on sampling. 04
(c) Why Mineral Processing is required? Explain different steps of mineral processing. 07
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OR
Q.4 (a) Write a short note on Thickening. 03
(b) Write a note on Coal Washing. 04
(c) Explain the drying and dewatering process for coal. 07
Q.5 (a) Define mineral processing. 03
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(b) Write a Short note on Froth flotation. 04(c) List out different types of Screens. Explain any two with sketch in detail. 07
OR
Q.5 (a) Write merit of mineral processing. 03
(b) What is Sizing? What are the different methods of sizing used in Laboratory? 04
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(c) Draw and explain flow sheet for lead and zinc. 07--- Content provided by FirstRanker.com ---
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