Introduction To Mining Engineering - Study Mode
[#1] It is a subordinate method combining features of both room and pillar and long wall.
Correct Answer
(D) shortwall
[#2] What is the suitable distance of location of heavy type of barriers from farthest face?
Correct Answer
(B) 365 kg
[#3] How much of stone dust is required per square meter cross-sectional area of gallery for heavy type of barriers?
Correct Answer
(C) 390 kg
[#4] Incubation period is NOT related to
Correct Answer
(D) explosibility of coal dust
[#5] In contiguous seam working, the 2 seams must be within A m of each other. A is given by
Correct Answer
(D) 9 m