Drilling And Blasting - Study Mode
[#466] In this state of self heating, tarry oudour fire stink appears called . . . . . . . .
Correct Answer
(C) Final stage
[#467] Air lock doors are required to be arranged where pressureon the door is
Correct Answer
(D) More than 250 Pa
[#468] A part of mine below ground has as an indipendent intake air way commencing from a main intake air way, and an indipendent return terminating at main return air way called . . . . . . . .
Correct Answer
(C) Ventilating district
[#469] Blasting off the solid was known as . . . . . . . .
Correct Answer
(B) Solid blasting
[#470] Which of the following cut gives greater advance per round of blasting in tunnels or drifts of small area?
Correct Answer
(D) coromant cut