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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-6 section-2

Each section contains 100 MCQs on Mine Development and Mining Methods .
51
Which of the following is a major hazard in block caving mines?
Discuss
Answer & Solution
Answer: Option B
Solution:
Block caving causes large-scale underground voids to collapse naturally.The correct answer is: SubsidenceThis leads to surface subsidence, often over wide areas.Monitoring and mitigation are critical.
52
What is the purpose of "slot drilling" in longhole stoping?
Discuss
Answer & Solution
Answer: Option C
Solution:
Slot drilling creates a void or relief area to initiate blast-induced rock breakage.The correct answer is: Initiate ore breakageWithout a slot, blasting is ineffective due to confinement.Slots are essential for fragmentation.
53
Which of the following is commonly used for lateral transport in narrow vein mines?
Discuss
Answer & Solution
Answer: Option C
Solution:
Slushers are cable-operated scrapers used to pull ore in confined spaces.The correct answer is: SlushersEffective in narrow vein conditions where trucks can't operate.Economical and low-profile.
54
What determines the need for secondary support in underground mines?
Discuss
Answer & Solution
Answer: Option C
Solution:
Secondary support supplements primary systems when they are insufficient.The correct answer is: Primary support effectivenessFactors like convergence or new cracks may trigger need.Includes cable bolts, retimbering, etc.
55
The term "ore pass" refers to:
Discuss
Answer & Solution
Answer: Option C
Solution:
Ore passes are vertical or inclined openings used to transfer ore between levels.The correct answer is: Vertical chute for ore movementThey improve efficiency and reduce haul distances.Must be designed to avoid hang-ups.
56
Which mining method uses a mobile platform to excavate raises?
Discuss
Answer & Solution
Answer: Option C
Solution:
Alimak raising uses a mechanized raise climber to excavate vertical openings.The correct answer is: Alimak raisingAllows work from a safe platform.Common in ventilation and manway raises.
57
What is the primary reason for backfilling in underground mining?
Discuss
Answer & Solution
Answer: Option C
Solution:
Backfilling involves placing material in mined-out voids.The correct answer is: Provide ground supportStabilizes surrounding rock and allows nearby mining.May also reduce surface subsidence.
58
In which condition is shrinkage stoping most effective?
Discuss
Answer & Solution
Answer: Option C
Solution:
Shrinkage stoping is ideal for narrow, steeply dipping ore bodies with competent rock.The correct answer is: Narrow ore body with firm wallsBroken ore supports walls during stoping.Not suitable for weak ground.
59
Which development method is used when fast access to deep ore is needed?
Discuss
Answer & Solution
Answer: Option C
Solution:
Vertical shaft sinking provides direct, quick access to deep ore zones.The correct answer is: Vertical shaft sinkingFaster than ramps for deep deposits.Used for hoisting, ventilation, and transport.
60
What is the role of scaling in underground mining?
Discuss
Answer & Solution
Answer: Option B
Solution:
Scaling involves removing loose or dangerous rock from the walls and roof.The correct answer is: Removing loose rocksEssential for safety before personnel or equipment enter.Done manually or mechanically.