Roof fall accidents can be minimized by
A. formulation of SSR and proper implementation of the support rule
B. minimizing the entry of manpower in the mine
C. by proper supply of support items
D. none of the above
Answer: Option A
Related Questions on Introduction to Mining Engineering
A. Normal distribution
B. Skewed distribution
C. Lognormal distribution
D. Poisson distribution
A. 3 level heading district
B. 4 level heading district
C. 5 level heading district
D. 6 level heading district
It is very difficult to control shaley roof if coal is not left with the shale why?
A. It is weak in nature
B. It has weathering effect
C. It has great affinity to absorb moisture and get departed from immediate roof
D. It reacts with coaly surface

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