Sectionalization of work in Bord and Pillar method has been stipulated in which of the following statutes?
A. CMR 116A & Circular 5/2002
B. CMR 117 & Circular 6/2002
C. CMR 137 & Circular 5/1972
D. CMR 122 & Circular 6/1972
Answer: Option C
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
Join The Discussion