Que On Surface Mining.docx

Q.1 (a) What is Drag line? Explain stripping shovel layout of open pit mines? (b) What are the various difference between in sidecasting by stripping shovel and drag line? Q. 2 (a) What is haul road? What are the various provisions required for design the haul road? (b) What are the different mining equipment? What are the advantages of surface mining over other types of mining? Q.3 (a) 1 a. Explain the general consideration for the application, limitation of open cast mining with advantages and disadvantages. (14 Marks) b. Write a short note on selection of site for box cut. (06 Marks) 2 a. Explain the dimension of open cast bench. (08 Marks) b. Explain the various types of slope failures. (12 Marks) 3 a. Explain the mechanics of rotary drilling. (10 Marks) b. Explain the mechanics of blasting with explosive. (10 Marks) 4 Write short notes on: i) Air blast; blasting. ii) Ground vibration; iii) Heavy blasting; iv) Smooth (20 Marks) PART-B 5 Explain the application, Iimitation, advantages and disadvantages of placer mining. (20 Marks) 6 Explain the dragline with a neat sketch with its application, limitations, advantages and disadvantages. (20 Marks) 7 Explain the bucket wheel excavators with its application, limitation, advantages and disadvantages. (20 Marks) 8 a. Explain the factors influencing the selection of equipments. (10 Marks) b. Write a short note on in pit crusher.