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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-2

Each section contains 100 MCQs on Mine Development and Mining Methods .
21
What is the main disadvantage of shrinkage stoping?
Discuss
Answer & Solution
Answer: Option B
Solution:
Shrinkage stoping leaves broken ore in place to support walls during mining.The correct answer is: Delayed ore recoveryOre is only removed after stope completion, delaying revenue.It's not ideal for high cash flow operations.
22
Which of the following is most often used for initial ore body access in steep terrain?
Discuss
Answer & Solution
Answer: Option D
Solution:
Adit is a horizontal tunnel driven from the hillside.The correct answer is: AditIt provides easy and cost-effective access in mountainous areas.Also aids in drainage and early exploration.
23
Which method uses "slices" mined from the top downward?
Discuss
Answer & Solution
Answer: Option C
Solution:
Top slicing removes horizontal ore slices from the top down.The correct answer is: Top slicingAfter each slice, caved waste fills the void.Used in weak ore and rock conditions.
24
What is the purpose of a muck bay in a mine development heading?
Discuss
Answer & Solution
Answer: Option C
Solution:
Muck bay is a widened section for temporary storage of blasted rock (muck).The correct answer is: Store blasted rockIt prevents production delays during loading cycles.Also used to ease traffic flow.
25
What does the term "ore dilution" refer to?
Discuss
Answer & Solution
Answer: Option B
Solution:
Ore dilution is when waste rock is mixed with ore during extraction.The correct answer is: Entry of waste material during miningThis lowers the grade and increases processing cost.Minimizing dilution is key to profitability.
26
Which method is best for a deep, massive ore body with competent rock?
Discuss
Answer & Solution
Answer: Option C
Solution:
Block caving is suited for massive ore bodies that can cave under gravity.The correct answer is: Block cavingIt's cost-effective for large, low-grade deposits.Requires significant initial development.
27
In underground mining, what is a "chute" used for?
Discuss
Answer & Solution
Answer: Option B
Solution:
Chute is a sloped passage for transferring broken ore from one level to another.The correct answer is: Loading ore into skipsOre passes are often connected to chutes for loading.Speeds up ore handling.
28
What does the term "support resistance" mean in ground control?
Discuss
Answer & Solution
Answer: Option C
Solution:
Support resistance is the force support systems can withstand before yielding.The correct answer is: Capacity of support to resist deformationImportant for safety in weak or stressed ground.Measured in kN or tons.
29
What is the key factor in choosing between vertical crater retreat and sublevel stoping?
Discuss
Answer & Solution
Answer: Option B
Solution:
Vertical Crater Retreat (VCR) and Sublevel stoping differ in layout and fragmentation.The correct answer is: Orebody geometry and heightVCR is good for tall, steep bodies; sublevel stoping for medium height.Geometry directly affects method suitability.
30
Which equipment is essential for cable bolting in underground mines?
Discuss
Answer & Solution
Answer: Option D
Solution:
Cable bolting is a reinforcement technique using long steel cables.The correct answer is: Grouting pumpIt injects cementitious grout to bond the cable with rock.Ensures long-term ground stability.