Which factor determines shaft depth selection over a decline?
A. Ventilation needs
B. Rock type
C. Depth of ore body
D. Number of miners
Answer: Option C
Solution (By Examveda Team)
Ore body depth strongly influences the choice between shaft and decline.The correct answer is: Depth of ore bodyDeclines are economical up to 1 km; deeper mines prefer shafts.Shafts are faster for vertical transport at depth.Related Questions on Mine Development and Mining Methods
What is the primary purpose of mine development?
A. Extraction of ore
B. Ventilation planning
C. Accessing ore body
D. Waste disposal
A. Shaft
B. Adit
C. Stope
D. Raise
A. Room and Pillar
B. Cut and Fill
C. Block Caving
D. Shrinkage Stoping
Which of the following is not an underground mining method?
A. Open-pit mining
B. Shrinkage stoping
C. Sublevel stoping
D. Cut and fill

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