51. Wood cutting from underground should be removed to the surface at the end of every . . . . . . . .
52. For using of delay action detonators the permission to be sought from . . . . . . . .
53. Who acts as Secretary to the Safety Committee constituted as per rule 29T?
54. Powered supports, hydraulic chocks or linked bars shall be advanced as soon as practicable after a web of coal has been taken off the face. So as to ensure the area of unsupported newly exposed roof is kept to a . . . . . . . .
55. The Explosive are stored in a . . . . . . . .
56. In below ground booster or Auxiliary fans is electically driven, installed operated maintained as to prevent open sparking shall not be placed in . . . . . . . . air way.
57. Every stopping should be kept accessible for . . . . . . . .
58. The person whose wages depend on the amount of coal, cannot be appointed as
59. All shots, if fired below ground shall be connected in . . . . . . . .
60. What is the name of the device used in a shaft exceeding 100 m depth to prevent over speeding & over winding?
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