Introduction To Mining Engineering - Study Mode
[#341] In case of metalliferous mines, if depth of a shaft exceeds 1000 m but not 1500 m, no winding rope shall be used or continued in use, if its F.O.S. is or becomes less than
Correct Answer
(D) 6
[#342] A lease holder cannot abandon a mine or part unless
Correct Answer
(B) final mine closure plan is submitted and approved by Regional Controller of mines
[#343] Over speeding of coal tubs are restricted by
Correct Answer
(B) jazz rail
[#344] The area of working face broken per drill hole is termed as
Correct Answer
(B) blasting factor
[#345] The natural and geological conditions of the mineral deposit are as follows 1. ore strength : weak to moderate 2. rock strength : moderate to strong 3. deposit shape : tabular 4. dip : flat 5. depth : shallow to moderate 6. cost of mining : moderate From the options listed below select the optimal or best suited method possible for the available conditions?
Correct Answer
(C) room and pillar mining