GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- V (New) EXAMINATION - WINTER 2019
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Subject Code: 2152201 Date: 02/12/2019Subject Name: Mining Machinery - II
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
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2. Make suitable assumptions wherever necessary.3. Figures to the right indicate full marks.
Q.1 (a) What are the benefits of multi rope winding? 03
(b) Explain the parameters for selecting coal cutting equipment. 04
(c) Explain the drum winder with neat sketch. 07
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Q.2 (a) Explain automatic winding. 03
(b) How efficiency of coal cutting equipments can be improved? 04
(c) Describe principle and working of coal ploughs. 07
OR
(c) How maintenance of continuous miner carried out? 07
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Q.3 (a) Explain any two screening equipment. 03
(b) Explain side discharge loader with merits & demerits. 04
(c) Explain the king detaching safety hook with sketch. 07
OR
Q.3 (a) What is the role of signaling system in winding? 03
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(b) Write note on Rigid Guides. 04(c) Explain the koepe winder with neat sketch. 07
Q.4 (a) Write note on Pit-top layout. 03
(b) Explain the modern technology used in mining machinery. 04
(c) Explain the head gear design with proper figure. 07
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ORQ.4 (a) Write note on Cage and Skip. 03
(b) Write the advantages & disadvantages of koepe winding. 04
(c) Explain Ward Leonard Control system with neat sketch. 07
Q.5 (a) Describe use of creeper. 03
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(b) Write a short note on different shaft fitting method. 04(c) Write a short note on Electrical Braking. 07
OR
Q.5 (a) What do you mean by workability of coal? 03
(b) Write a short note on Safety devices. 04
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(c) Write a short note on Mechanical Braking. 07--- Content provided by FirstRanker.com ---
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