Write a short note on Rank of Coal.
[3 marks]Explain the classification of mining methods.
[4 marks]Explain the various origin of coal.
[7 marks]Define the Coal. Explain various types of coal.
[3 marks]Discuss shape and size of panel system used in mining.
[4 marks]Explain the hydraulic stowing method with neat sketch.
[7 marks]Describe the origin of stratified deposits.
Explain various coal resources in India.
[3 marks]Discuss the cycle of operation in mining.
[4 marks]Define stowing and write their principal of working.
[7 marks]Discuss the application of panel system.
[3 marks]What are the precautions against fire during and after depillaring operation?
[4 marks]Explain the differential between board & pillar and long wall mining.
[7 marks]Define: Gallery, Panel and District.
[3 marks]Write note on Characteristics of Roof and Floor.
[4 marks]Describe various factors are influencing for the choice of Mining Method.
[7 marks]Explain: Why in India only most of Board and Pillar Method is used?
[3 marks]Write advantages and disadvantages of Board and Pillar Method.
[4 marks]Write a short note on Long wall advancing method.
[7 marks]Define: Stook, Barrier and Chokidar.
[3 marks]Write note on Hand Packing Method of stowing.
[4 marks]Explain Board and Pillar Method in brief with neat sketch.
[7 marks]What are the disadvantages of stowing methods?
[3 marks]Describe the extraction of pillars in contiguous seam.
[4 marks]Write notes on Hydraulic profile and H: Lratio in hydraulic stowing System.
[7 marks]