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Mine Development and Mining Methods MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Mine Development and Mining Methods. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Mine Development and Mining Methods chapter is particularly important for students studying mining engineering. Page-3 section-3

Each section contains 100 MCQs on Mine Development and Mining Methods .
21
Which method generates the most subsidence at surface?
Discuss
Answer & Solution
Answer: Option B
Solution:
Block caving involves collapsing the ore body and overlying rock.The correct answer is: Block cavingLarge-scale method suitable for low-grade, massive ore bodies.Subsidence is significant and must be managed.
22
What is the main function of an LHD machine?
Discuss
Answer & Solution
Answer: Option B
Solution:
LHD (Load-Haul-Dump) machines are versatile mucking units.The correct answer is: Muck loading and transportWork in confined spaces and haul broken ore to ore passes or trucks.Common in modern underground mining.
23
Which factor determines shaft depth selection over a decline?
Discuss
Answer & Solution
Answer: Option C
Solution:
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.
24
The process of removing worn-out ground support is called:
Discuss
Answer & Solution
Answer: Option B
Solution:
Rehabilitation involves replacing old or damaged supports.The correct answer is: RehabilitationImproves safety and allows re-entry into mined-out areas.Common before secondary mining.
25
Which technique improves roof stability by reinforcing fractured rock?
Discuss
Answer & Solution
Answer: Option C
Solution:
Rock bolting strengthens the rock mass by binding loose blocks.The correct answer is: Rock boltingCommon in hard rock mines.Often combined with mesh and shotcrete.
26
What is the primary purpose of grouting in mine development?
Discuss
Answer & Solution
Answer: Option B
Solution:
Grouting involves injecting cement or chemical mixtures into fractures.The correct answer is: Water seepage controlUsed to seal cracks in rock to prevent water ingress.Also strengthens weak zones before excavation.
27
What is "face" in mining terminology?
Discuss
Answer & Solution
Answer: Option C
Solution:
Face is the exposed area of rock where excavation occurs.The correct answer is: Working surface being mined Can be vertical or inclined depending on orientation.Regularly drilled, blasted, and advanced.
28
Which type of ventilation system uses both intake and exhaust shafts?
Discuss
Answer & Solution
Answer: Option C
Solution:
Mechanical ventilation uses fans to circulate air through shafts.The correct answer is: Mechanical ventilationEnsures controlled airflow, critical in deep and gassy mines.Supports both fresh air intake and foul air exhaust.
29
Which equipment is most suitable for narrow vein underground mining?
Discuss
Answer & Solution
Answer: Option C
Solution:
Airleg drills are lightweight and maneuverable.The correct answer is: Airleg drillIdeal for narrow spaces where larger equipment cannot reach.Commonly used in hand-held drilling operations.
30
What does "cut" refer to in a cut-and-fill mining method?
Discuss
Answer & Solution
Answer: Option B
Solution:
Cut is the horizontal ore segment extracted during a mining cycle.The correct answer is: The ore removed in one passOnce the cut is mined, the void is filled before mining above.This maintains stability.