Download GTU BE/B.Tech 2018 Winter 8th Sem Old 182202 Advance Mining Methods Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 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 2018
Subject Code: 182202 Date: 15/11/2018

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) Describe principles of operation and design of power support with neat
sketch.
07
(b) Explain general consideration before adopting horizon mining. 07

Q.2 (a) Discuss the factors affecting choice of thick seam mining method. 07
(b) What do you mean by underground coal gasification? Explain factors
affecting underground coal gasification.
07
OR
(b) What do you mean by hydraulic mining? Explain layout of hydraulic
mining with neat sketch.
07

Q.3 (a) Explain horizon mining with neat sketch. 07
(b) Explain support system of longwall faces and depillaring. 07
OR
Q.3 (a) Explain suitable conditions for selection of hydraulic mining in brief. 07
(b) Explain the principle and operation of hydraulic mining with neat sketch. 07

Q.4 (a) Explain problems of thick seam mining. 07
(b) Explain sublevel caving method with neat sketch. 07
OR
Q.4 (a) Explain problems of thin seam mining. 07
(b) List out various methods used in thin seam extraction. Explain any one in
brief with neat sketch.
07

Q.5 (a) Discuss the future scopes in underground coal gasification? 07
(b) Write advantages and disadvantages of underground coal gasification. 07
OR

Q.5 (a) Explain deep-sea mining for manganese nodules. 07
(b) Explain hydro-chemical and biochemical methods of mining. 07


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