Metal Mining - Study Mode
[#91] The pilot hole is reamed from lower level to upper level called . . . . . . . .
Correct Answer
(B) Up reaming
[#92] Soutirage mining is also called . . . . . . . .
Correct Answer
(B) Integral caving
[#93] Ore loading in top slicing by . . . . . . . .
Correct Answer
(B) Pneumatic Auto Loader
[#94] In the Rill stoping the dip must exceed . . . . . . . .
Correct Answer
(C) 45°
[#95] If the roof is strong, self supporting, tabular and flat deposit the method employed is . . . . . . . .
Correct Answer
(C) Room and pillar