At any mine, wherein more than 'A' persons are employed, the Chief Inspector shall give order to provide and maintain a canteen for use of all persons employed. 'A' is given by
A. 250
B. 350
C. 500
D. 750
Answer: Option A
A. 250
B. 350
C. 500
D. 750
Answer: Option A
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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