Envlmnt No.
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER- IV (New) EXAMINATION - WINTER 2019
Subject Code: 2142206 Date: 16/12/2019
Subject Name: Surface Mine Production
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
MARKS
Q.1 (a) Draw a flow diagram of mineral extraction & mineral 03 transportation in open cast mining
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(b) Explain operation and maintenance of shovel. 04
(c) Enlist the different types of slope failures. Explain any 07 one.
Q.2 (a) How slope stability id protected and monitored? 03
(b) Differentiate between opencast mines and underground 04 mines.
(c) Evaluate the types of transport system in open cast 07 mining.
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OR
(c) Evaluate different types of drilling equipments used in 07 mining.
Q.3 (a) What is blasting? Explain coyote and secondary blasting 03
(b) What are the drainage requirements in surface mining? 04
(c) List out the open cast mining machinery 07
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OR
Q.3 (a) Define the terms associated with surface mining. 03
(b) Describe haulage track, its lying method and maintenance 04 procedure.
(c) Explain spreaders and reclaimers. 07
Q.4 (a) explain the terms bench, bench height, bench width, cut 03 and face angle.
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(b) Write a note on' width and height of the bench with 04 illustrative diagram
(c) What is stripping ratio? How it will help in determining 07 choice of mining?
OR
Q.4 (a) Explain major operation in surface mining. 03
(b) Describe merits and limitations of open cast mining. 04
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(c) Explain the factors affecting the choice of a transport 07 system in opencast mining.
Q.5 (a) Point out the comparison between diesel shovel and 03 electrical shovel
(b) What is Reclamation? Explain land reclamation. 04
(c) Give the machinery used in ground preparation and 07 explain any two.
OR
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Q.5 (a) Give the points to deploy a dragline in the surface mining 03
(b) List out types of reclaimer for reclaiming the material and 04 explain bucket wheel reclaimer with it’s a neat sketch.
(c) Explain overcastting by Dragline with its various methods 07
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