Download GTU BE/B.Tech 2019 Summer 7th Sem New 2172204 Mineral Processing Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 7th Sem New 2172204 Mineral Processing Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII(NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2172204 Date:27/05/2019

Subject Name: Mineral Processing

Time: 02:30 PM TO 05:00 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) Define mineral processing and the various steps involved in it. 03
(b) With the help of a short note explain the importance of mineral
processing in mining industry.
04
(c) Explain communition and liberation in detail with different steps
involved in it.
07

Q.2 (a) Explain Kick?s law. 03
(b) List out the objectives of grinding. 04
(c) Compare jaw crusher with gyratory crusher. 07
OR
(c) Explain ball mill and the various zones created in it during grinding. 07
Q.3 (a) Define: (i) sizing; (ii) jigging; and (iii) thickening. 03
(b) Describe the constructional features of a Blake jaw crusher. 04
(c) Describe froth floatation process for the concentration of minerals.
Give names of any two ores which can be concentrated using this
process.
07
OR
Q.3 (a) What do you understand by ?open circuit? and ?closed circuit?
ginding?
03
(b) Write a note on how grade of a mineral is maintained according to
market demand.
04
(c) Using a labeled diagram explain magnetic saperators. 07
Q.4 (a) Briefly explain gravity concentration. 03
(b) Explain the principle underlying the working of hydrocyclons. 04
(c) Write short note on heavy media separation. 07
OR
Q.4 (a) What is the purpose of collectors? 03
(b) Write a short note on laws of solids settling in fluids. 04
(c) Write a note on industrial screens. 07
Q.5 (a) Explain vibrating tables in brief. 03
(b) Explain the factors enfluencing washability of coal. 04
(c) Draw and explain simplified flowsheet for the concentration of
copper ore.
07
OR

Q.5 (a) Write a note on laboratory sieve analysis. 03
(b) Explain different methods of sampling. 04
(c) Draw and explain simplified flowsheet for concentration of
magnetite ore.
07

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