Booster fan or mechanical ventilator shall be examined once in every . . . . . . . . days.
A. 14
B. 21
C. 7
D. 30
Answer: Option C
Related Questions on Mine Legislation and General Safety
Combustable oils or materials not used for filling in . . . . . . . . Equipment
A. Hydraulic
B. Chemical
C. Biological
D. Eletrical
Out of the following belt conveyor related items which one is provided for safety for the persons?
A. Loop-take-up
B. Idler set
C. Audio-visual alarm
D. sequential control switch

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