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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-8 section-1

Each section contains 100 MCQs on Mine Development and Mining Methods .
71
Which of the following is a blind vertical shaft?
Discuss
Answer & Solution
Answer: Option C
Solution:
Winze is a vertical or inclined shaft sunk from underground.The correct answer is: WinzeIt connects lower levels and is not visible from the surface (hence blind).Raise goes upward; adit is horizontal from surface.
72
Why is the crown pillar important in mining?
Discuss
Answer & Solution
Answer: Option B
Solution:
Crown pillar is the rock left between mined-out stopes and the surface.The correct answer is: Acts as a safety barrier between stopes and surfacePrevents collapse and surface subsidence.Its design is critical for mine closure planning.
73
Which method is preferred when surface subsidence must be avoided?
Discuss
Answer & Solution
Answer: Option C
Solution:
Cut and Fill uses backfill to support the stope, minimizing voids.The correct answer is: Cut and FillThis prevents ground movement and is ideal under sensitive areas like towns.Block caving causes extensive surface movement.
74
What is a raise borer used for?
Discuss
Answer & Solution
Answer: Option C
Solution:
Raise borer drills vertical or inclined shafts between levels.The correct answer is: Creating vertical holesIt drills a pilot hole, then enlarges from below upward, creating smooth-walled shafts.Used in ventilation raises and ore passes.
75
In inclined ore bodies, which transport system is most efficient?
Discuss
Answer & Solution
Answer: Option B
Solution:
Inclined conveyor belts are efficient for hauling ore in sloping tunnels.The correct answer is: Conveyor belt in inclineThey offer continuous, low-maintenance transport.Skips and cages are best suited for vertical shafts.
76
What is the typical purpose of a muck bay in a tunnel?
Discuss
Answer & Solution
Answer: Option C
Solution:
Muck bay is an enlarged section in a tunnel where blasted rock (muck) is temporarily stored.The correct answer is: Temporary ore storageIt provides space to load or haul ore without blocking the main tunnel.Not used for explosives or shelter.
77
What mining method is most suited for flat-lying, tabular coal seams?
Discuss
Answer & Solution
Answer: Option C
Solution:
Longwall mining is highly efficient for extracting flat, continuous seams.The correct answer is: Longwall miningIt uses a shearer and roof supports to extract large panels.Very common in coal mining.
78
Which of the following techniques is primarily used to improve ground stability around tunnels?
Discuss
Answer & Solution
Answer: Option B
Solution:
Grouting involves injecting cementitious or chemical material into the ground.The correct answer is: GroutingIt fills fractures, reduces permeability, and strengthens rock mass.Essential near water-bearing or loose zones.
79
What is the function of a collar in shaft sinking?
Discuss
Answer & Solution
Answer: Option B
Solution:
Shaft collar is the reinforced area at the top of a shaft.The correct answer is: Shaft mouth reinforcementIt prevents ground sloughing and provides support for hoisting gear.Usually made of concrete or steel.
80
What mining technique causes the least ore dilution?
Discuss
Answer & Solution
Answer: Option C
Solution:
Cut and fill mining allows selective extraction and tight control over ore boundaries.The correct answer is: Cut and fillBackfill supports the walls, reducing waste mixing.Used in high-grade, irregular ore zones.