Drilling And Blasting - Study Mode
[#91] The country rock present above the vein.
Correct Answer
(B) Hanging step
[#92] For ventilating a heading, drift or tunnel.
Correct Answer
(B) Auxiliary fan
[#93] Electronic anemometers measure air velocities in . . . . . . . . ranges.
Correct Answer
(C) 3
[#94] The pit bottom layout withstand . . . . . . . .
Correct Answer
(B) Compleate life
[#95] Spot coolers used in mining cooling capacity varies from . . . . . . . . in Kcal/hour.
Correct Answer
(A) 37800 - 126000