51. The length of the flat base piece is not less than . . . . . . . . centimeter.
52. The boundries of the mines shall not be changed except with the . . . . . . . . permission of the chief inspector.
53. Where floor cog or roof cog is taken, the shorter props shall be replaced by . . . . . . . . props.
54. How many officials or competent persons of mine the Chairman as per rule 29U shall nominate?
55. How many years of practical experience of below ground mines is mandatory for getting appointment of rescue superintendent?
56. The internal combustion engines or steam boiler shall not be used in mine . . . . . . . .
57. When do the manager submit annual return if working there of is discontinued over a period of exceeding sixty days?
58. Before erecting cogs in depillaring area, props shall be errected at the . . . . . . . . of each cog
59. The manager of every mine, where need of dust respirators might arise, shall provide the workers on
60. Who else, apart from Owner, Agent or Manager shall report to the Chief Inspector in writing when he is convinced that the persons employed in a mine is suffering from a disease notified under subsection (1) of section 25 of Mines Act 1952?
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