Drilling And Blasting - Study Mode
[#316] Non coaking coal mines of India was Nationalised in the year.
Correct Answer
(C) 1973
[#317] Which is the deepest mine in world.
Correct Answer
(B) Mponeng Gold Mine
[#318] What is meant by vane efficiency.
Correct Answer
(B) The ratio of the input head to Eulers head
[#319] Do not allow burning of fire inside a mine [non coal mine] and within . . . . . . . .m of an intake.
Correct Answer
(C) 15
[#320] Which drivages are generally safer.
Correct Answer
(B) Incline