What is the depth to be achieved for an excavation to be called a coal mine?
A. The depth of such excavation measured from its highest to its lowest point should not be less than 15m
B. The depth of such excavation measured from its highest to its lowest point should not be less than 10m
C. The depth of such excavation measured from its highest to its lowest point should not be less than 5m
D. The depth of such excavation measured from its highest to its lowest point should not be less than 30m
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Rules And Regulations
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