51. The type of rope which relives the internal stresses . . . . . . . .
52. In dint header machine the following component is employed.
53. The modification of direct haulage system is . . . . . . . .
54. The ropes used for flexible guides . . . . . . . .
55. The quantity of water delivered by a given pump varies directly as the . . . . . . . . of impeller.
56. Guide rope comes under
57. The rocker shovel equipment, the power source in Indian mining practice is
58. Coal drill rated with . . . . . . . .
59. The direct rope haulage can also serves in . . . . . . . . roads.
60. Two traction motors of . . . . . . . . kw each of carvo loader 310.
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