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More Mining Engineering Questions
Alcohol comes under
The persons worst subjected dust hezard in coal mines are . . . . . . . . .
'A' 'p'e'r's'o'n' 's'o' 'a'p'p'o'i'n't'e'd' 'u'n'd'e'r' 'r'e'g'u'l'a't'i'o'n' '1'9'0'
The ropes which under go frequent movement of coiling they are called . . . . . . . .
What is the minimum requirement of percentage of oxygen at any place in the mine where persons are required to work or pass?