Introduction To Mining Engineering - Study Mode
[#116] Shale as immediate roof in underground, coal mine is not suitable because
Correct Answer
(C) It has high affinity to moisture & departs from roof easily
[#117] Blasting of stope in VCR method consists of
Correct Answer
(C) Blasting all the holes in slices
[#118] Which one of tire following HEMM is a tyre mounted?
Correct Answer
(A) LHD
[#119] In an opencast mine shown in the figure below, the coal has a density of 1.4 t/m 3 . Assuming mining operation started from plane XY, the operating stripping ratio under the given conditions in m 3 /t is
Correct Answer
(C) 2.56
[#120] Manhole should be provided along the haulage length at every "A" meter distance. A is given by
Correct Answer
(A) 20