81. What is the maximum period of service expected from all parts of suspension gear as per CMR 2017?
82. It may be sufficient to provide one rescue room for a number of mines, if the total number of persons ordinarily employed in below ground working of all such mines does not exceed,
83. If the ventilation door to be frequently kept open for the passage of men/material, those shall be through at the working shift, a . . . . . . . . at the door.
84. No oil, grease, canvas or other inflammable material shall be stored on any mine except in a . . . . . . . . receptacle.
85. What temperature of the socket is suitable for pouring white metal into it?
86. Detonetor once inserted into a . . . . . . . . cartridge shall not be taken at
87. Detonators are to be carried in
88. Number of shots fired at anyone time by the apparatus shall not exceed the number for which it is . . . . . . . .
89. The production of dust can be reduced by using . . . . . . . . type of bits.
90. The samples are called by a method of . . . . . . . . sampling, when the zone treated with incombustible dust.
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