Which one of the following is used to support weak roof in underground mining?
A. Timber sets
B. Shaft lining
C. Portal gate
D. Blasting mats
Answer: Option A
Solution (By Examveda Team)
Timber sets are traditional roof support structures.The correct answer is: Timber setsThey are used in weak ground to prevent collapse.Still in use for temporary or small-scale operations.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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