Suitable arrangements shall be made for descend and ascend, arrangements are made by mechanical means so installed and maintained to be constantly available for use if the depth of the shaft more than . . . . . . . . meters.
The person who supervise concerning by ventilation, spontaneous heating, fire, gas coal dust suppression and shall advice the manager to ensure adequacy of ventilation
Practical experience of candidates for surveyors certificate examinations such period shall be reduced to . . . . . . . . month, in case of a candidate who has attended classes in theoretical and practical survey at any educational institution approved by boards.
