Introduction To Mining Engineering - Study Mode
[#396] Which of the following method is still followed in maximum number of underground coal mines in India
Correct Answer
(D) Bord & Pillar mining
[#397] Which of the following method may be approaching obsolescence and proved to be the most expensive of all mining methods?
Correct Answer
(A) square set stoping
[#398] The mining method used in thick and steep coal seam, where the slices are neither horizontal nor parallel to the inclination of the seam, is called
Correct Answer
(A) transverse slicing
[#399] Size of pillars is decided based on
Correct Answer
(C) depth from surface
[#400] Why different types of explosives are not normally charged in the same shot hole?
Correct Answer
(B) chances of misfire