Download GTU BE/B.Tech 2019 Winter 8th Sem Old 182202 Advance Mining Methods Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem Old 182202 Advance Mining Methods Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII (Old) EXAMINATION ? WINTER 2019
Subject Code: 182202 Date: 21/11/2019

Subject Name: Advance Mining Methods
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.

Q.1 (a) Explain the basic structure of powered supports with the help of neat labeled
diagram.
07
(b) List out different criterias for the selection of powered supports. 07

Q.2 (a) List out the general considerations of horizon mining. Write its advantages and
disadvantages.
07
(b) Explain the extraction of thin seam using coal plough in uni- and bi-direction. 07
OR
(b) Explain the advantages and disadvantages of thick seam mining. 07

Q.3 (a) List out different problems associated with thick seam mining. 07
(b) Using a labeled layout describe horizontal slicing in both ascending and
descending order. Also give its advantages and disadvantages.
07
OR
Q.3 (a) In what conditions sublevel caving can be used? Explain the working of this
method along with its advantages and disadvantages.
07
(b) Using a labeled layout describe inclined slicing. Also give its advantages and
disadvantages.
07

Q.4 (a) Explain different conditions suitable for hydraulic mining. 07
(b) Using a neat layout explain the working of hydraulic mining. 07
OR
Q.4 (a) Explain the transportation arrangement used in hydraulic mining. 07
(b) Give the advantages and disadvantages of hydraulic mining. 07

Q.5 (a) List the favourable conditions for underground coal gasification. Also give its
advantages and disadvantages.
07
(b) Explain underground coal gassification method with its different phases. 07
OR

Q.5 (a) Explain deep sea mining method of manganese nodules. 07
(b) Name different ores that can be mined out by leaching process. Give an overview
of mining by leaching and its advantages.
07

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