Coal Mining - Study Mode
[#336] Top most horizon of tertiary succession in Assam is known as
Correct Answer
(D) Dining series
[#337] How many coal seams belong to Barakar formation
Correct Answer
(C) 18
(G) 18
[#338] Drill rods made of
Correct Answer
(A) Carbon steel
[#339] The width of the rooms in room and pillar method may be
Correct Answer
(A) 4 - 6m
[#340] The tunneling machine employed in hard rock should be
Correct Answer
(C) Ripper type