Coal Mining - Study Mode
[#101] The deviation is common in
Correct Answer
(A) Soft ground and shear zone
[#102] The voltage of bulb provided in sinking shaft
Correct Answer
(B) 110 V
[#103] This should be avoided, where temporary lining essential
Correct Answer
(B) Blasting
[#104] Generally the depth of hole in shaft sinking
Correct Answer
(B) 1.2 - 1.5 m
[#105] In hydraulic sand stowing the pipe end should away from the dip of box is . . . . . . . .
Correct Answer
(B) 7.5 m