JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B. Tech IV Year UNDERGROUND METAL MINING TECHNOLOGY Previous Question Paper (July/August - 2022 - R18)
Answer any five questions. All questions carry equal marks.
Main
Define the following terms:
Decline
Answer
A decline is a primary underground access opening driven from the surface or an upper level to a lower level at a gradient (usually 1 in 7 to 1 in 9). It is typically used for the movement of trackless mining equipment, such as LHDs and dump trucks, to facilitate ore haulage and personnel transport.
Winze
Answer
A winze is a vertical or inclined opening driven downwards from one level to another within an underground mine. It is primarily used for exploration, ventilation, or as a passage for ore and waste handling between levels.
Hanging wall
Answer
Sign in to view the complete answer paper.
Footwall
Answer
Sign in to view the complete answer paper.
Drift
Answer
Sign in to view the complete answer paper.
List out and explain various modern metal mine features.
Answer
Sign in to view the complete answer paper.
Explain the mineral exploration and its characteristics.
Answer
Sign in to view the complete answer paper.
Explain cut and fill method in underground metal mines.
Answer
Sign in to view the complete answer paper.
Explain briefly the different types of raising methods used for metal mines.
Answer
Sign in to view the complete answer paper.
Classify the stoping method used in underground metalliferous mining. Describe about the shrinkage stoping briefly with its merits and demerits.
Answer
Sign in to view the complete answer paper.
What is stop block in mining? Explain in detail.
Answer
Sign in to view the complete answer paper.
What are the factors affecting the choice of a stoping method?
Answer
Sign in to view the complete answer paper.
What is production cycle? Explain in detail.
Answer
Sign in to view the complete answer paper.
Explain the procedure to design an optimal stope layout for underground mining.
Answer
Sign in to view the complete answer paper.
Write the applicability conditions for the following methods:
Room and pillar stoping
Answer
Sign in to view the complete answer paper.
Cut and fill stoping
Answer
Sign in to view the complete answer paper.
Stull
Answer
Sign in to view the complete answer paper.
Explain the VCR method of mining
Answer
Sign in to view the complete answer paper.
Explain the rapid excavation.
Answer
Sign in to view the complete answer paper.
Explain about Large Blast hole stoping.
Answer
Sign in to view the complete answer paper.