What is the main purpose of installing a collar during shaft sinking?
A. Prevent water inflow
B. Strengthen shaft bottom
C. Provide stable top for equipment
D. Reduce dust
Answer: Option C
Solution (By Examveda Team)
Shaft collar is a reinforced structure at the surface opening.The correct answer is: Provide stable top for equipmentSupports hoisting structures and prevents surface collapse.Often constructed with concrete.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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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