Explain: (i) Chutes (ii) Grizzlies and (iii) Shaft insets
[3 marks]Explain: Ore and waste bins
[4 marks]Classification of stoping methods based on its deposits characteristics.
[7 marks]Which are the subsidiary excavations are required in underground metalliferous mining?
[3 marks]Draw a principal layout of a metal mine.
[4 marks]Explain: Secondary blasting
[7 marks]Explain: Principles for development of metal mine.
Explain in brief open raising method.
[3 marks]Explain the VCR method.
[4 marks]Describe the Drop raising method with neat sketch.
[7 marks]Explain: Raising by long hole drilling
[3 marks]Describe the two or three compartment method.
[4 marks]Explain in detail the Alimak raise climber method.
[7 marks]Explain in brief open stoping method.
[3 marks]Give comparison between underhand and overhand stoping.
[4 marks]Describe the shrinkage stoping method with sketch.
[7 marks]Explain in brief underhand stoping method.
[3 marks]Write down the applicability and preparatory work for sub-level stoping method.
[4 marks]List out the factors for the choice of method of mining.
[7 marks]Explain: Underground crusher
[3 marks]Write down the applicability of square set stoping method.
[4 marks]Explain in detail cut and fill stoping method.
[7 marks]Write the applicability of top slicing.
[3 marks]Write the disadvantages of block caving.
[4 marks]Explain in detail sub-level caving.
[7 marks]