Drilling And Blasting - Study Mode
[#86] The drilling pattern followed in small drifts
Correct Answer
(C) drag cut
[#87] Higher Nitroglycerene content of explosives, is better with . . . . . . . .
Correct Answer
(C) Water resistance properties
[#88] 1 tonne air conditioning plant removes . . . . . . . . Kcal/hr, heat from the air passing through it.
Correct Answer
(A) 3024
[#89] Number of shelves in light weight barrier.
Correct Answer
(D) 11
[#90] Air crossings in gassy coal mines should be . . . . . . . .
Correct Answer
(D) Explosion proof