Metal Mining - Study Mode
[#141] The raises by long hole drilling can drive raises upto the limit of . . . . . . . . m.
Correct Answer
(A) 50
[#142] Which of the following method of metal mining is only applicable to coal mines.
Correct Answer
(C) Stop and pillar
[#143] The following is not considered under unsupported class of u/g mining method for extraction.
Correct Answer
(D) Square set
[#144] Vertically or steeply inclined openings is suitable for . . . . . . . .
Correct Answer
(D) All the above
[#145] Distance between blasting and loading point is termed as . . . . . . . .
Correct Answer
(C) Lead