41. The support in shrikage stoping is . . . . . . . . A. Insitu pillar B. Broken are C. Timber mat D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
42. If the stoping started on eiqhter side of rise winze connection called . . . . . . . . A. Single stoping B. Double stoping C. Multiple stoping D. Back stoping Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
43. The stoping method selected, where ore body is thick veins type ore and walls are strong and steeply dipping ore i.e. footwall steeper than angle of repose of broken ore is . . . . . . . . A. Open stoping B. Shrinkage stoping C. Cut and fill D. Sub level stoping Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
44. Grizzly is used in ore bin to prevent. A. Falling of ore B. Bigger size ore from entering the bin C. Spillage of ore D. Loading of skip Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
45. Alimak raise climber introduced in India first time in the year . . . . . . . . A. 1970 B. 1971 C. 1972 D. 1973 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
46. The method employed, if the ore body is strong steeply dipping with strong host rock. A. Room and pillar B. Square set C. Sub level D. Cut and fill Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
47. The method of drop raising is an improvement over the method of raising through . . . . . . . . A. Open B. Jora C. Long hole D. Compartment Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
48. Mineral hoisting in one lift can be done upto the depth not exceeding . . . . . . . . meters. A. 1800 B. 2400 C. 1500 D. 3000 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
49. The vertical distance between two levels called as . . . . . . . . A. Length of back B. Level interval C. Stope level D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
50. Compressibility of sand fill by hydraulic stowing is . . . . . . . . A. 10 - 15% B. 15 - 20% C. 20 - 30% D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
