Drilling And Blasting - Study Mode
[#676] A high explosive like OCG, if used as booster occupies . . . . . . . . of the total explosive change.
Correct Answer
(C) 15 - 20%
[#677] Pop shooting or plaster shooting is a type of
Correct Answer
(B) secondary blasting
[#678] A level gallery may not be truely along strike but slightly raising in bye because to facilitate.
Correct Answer
(C) Haulage
[#679] Detonating relays are generally used for the purpose of blasting in
Correct Answer
(D) opencast working
[#680] Dust at transfer points may be collected by use of . . . . . . . .
Correct Answer
(C) dust extractors