Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem New 2172204 Mineral Processing Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2172204 Date: 29/11/2018
Subject Name: Mineral Processing
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) What is mineral processing? How is it useful to mining industry? 03
(b) Write the objectives of grinding. 04
(c) Comparison of Jaw crusher and gyratory crusher 07
Q.2 (a) Explain: Kick?s law. 03
(b) Explain: sorting classifiers. 04
(c) Write down the principal steps of mineral processing. 07
OR
(c) Write in detail types of industrial screens. 07
Q.3 (a) Explain: mobile crushing unit. 03
(b) Explain: black Jaw crusher. 04
(c) Write the special method of grinding. 07
OR
Q.3 (a) Explain: sieve analysis 03
(b) Advantage and disadvantage of jigs. 04
(c) Working principle and operation of shaking table. 07
Q.4 (a) Explain : Hydrocyclones 03
(b) Explain: collectors and frothers 04
(c) Explain the Ball mill. Classify the various zones created in
ball mill during grinding.
07
OR
Q.4 (a) Explain the electrostatic separator. 03
(b) Discuss in brief about froth flotation. 04
(c) Explain the mechanism of magnetic separator 07
Q.5 (a) Write a note on sampling errors. 03
(b) Explain: (i) Thickening (ii) Filtration 04
(c) Write note on processing of coal and explain via flow sheet of coal
washing by heavy media separation.
07
OR
Q.5 (a) Explain: crushing, sizing and cleaning of coal. 03
(b) Explain: Methods used in ore dressing 04
(c) Write note on processing of copper and explain via flow sheet of copper
washing by heavy media separation.
07
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This post was last modified on 20 February 2020