41. The support in shrikage stoping is . . . . . . . .
42. If the stoping started on eiqhter side of rise winze connection called . . . . . . . .
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 . . . . . . . .
44. Grizzly is used in ore bin to prevent.
45. Alimak raise climber introduced in India first time in the year . . . . . . . .
46. The method employed, if the ore body is strong steeply dipping with strong host rock.
47. The method of drop raising is an improvement over the method of raising through . . . . . . . .
48. Mineral hoisting in one lift can be done upto the depth not exceeding . . . . . . . . meters.
49. The vertical distance between two levels called as . . . . . . . .
50. Compressibility of sand fill by hydraulic stowing is . . . . . . . .
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