Drilling And Blasting - Study Mode
[#526] The size of the incline usually, in case of travelling way.
Correct Answer
(D) 2 m × 2 m
[#527] Brattice cloth used in under ground should be . . . . . . . .
Correct Answer
(C) Fire resistant
[#528] Ammonia is not used in u/g coal mine as it is . . . . . . . .
Correct Answer
(B) Noxious
[#529] The formula for finding the law of mine air friction where P = . . . . . . . .
Correct Answer
(A) $$frac{{{ ext{KS}}{{ ext{V}}^2}}}{{ ext{A}}}$$
[#530] Vertical pit from one underground working place to another working place, does not extend to surface called . . . . . . . .
Correct Answer
(B) Blind pit