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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-9 section-2

Each section contains 100 MCQs on Mine Development and Mining Methods .
81
Which of the following is a key advantage of cut-and-fill mining?
Discuss
Answer & Solution
Answer: Option B
Solution:
Cut-and-fill mining is highly adaptable to complex, irregular ore bodies.The correct answer is: High ore recovery in irregular bodiesFilling provides support and enables selective mining.It is slower and more expensive but precise.
82
What is the main function of a grizzly in an underground mine?
Discuss
Answer & Solution
Answer: Option B
Solution:
Grizzly is a coarse screen at ore passes or crushers.The correct answer is: Sorting large bouldersPrevents oversized material from entering downstream equipment.Improves equipment efficiency and safety.
83
Which of the following methods is best for extracting ore from a horizontal, thin vein?
Discuss
Answer & Solution
Answer: Option C
Solution:
Drift mining is used for thin, horizontal seams near the surface.The correct answer is: Drift miningDeveloped horizontally into the vein from the hillside.Used in coal and small mineral deposits.
84
What is the purpose of "timber sets" in underground mining?
Discuss
Answer & Solution
Answer: Option B
Solution:
Timber sets are wooden frames supporting mine roofs and walls.The correct answer is: Roof supportUsed in soft or weak ground conditions.Being replaced by steel and concrete supports in modern mining.
85
Which term refers to the initial drift or tunnel created to access an ore body?
Discuss
Answer & Solution
Answer: Option C
Solution:
Adit is a horizontal passage into a mine, often from the surface.The correct answer is: AditUsed for access, drainage, and haulage.Common in mountainous terrain where horizontal entry is feasible.
86
Which support type applies compressive force to resist rock movement?
Discuss
Answer & Solution
Answer: Option C
Solution:
Hydraulic props offer active support using fluid pressure.The correct answer is: Hydraulic propCommonly used in longwall mining to support advancing face.Can be adjusted and reused.
87
Which method is best for mining ore bodies that dip at shallow angles?
Discuss
Answer & Solution
Answer: Option A
Solution:
Room and pillar is suited for shallow-dipping or flat ore bodies.The correct answer is: Room and pillarEfficient where the seam is uniform and stable.Also used in salt, coal, and potash mining.
88
The process of enlarging a shaft or tunnel is called:
Discuss
Answer & Solution
Answer: Option B
Solution:
Slashing refers to enlarging underground openings.The correct answer is: SlashingUsed to improve access or increase production capability.Different from reaming, which enlarges boreholes.
89
Which method uses gravity flow of ore and caved waste rock?
Discuss
Answer & Solution
Answer: Option B
Solution:
Sublevel caving allows ore and waste to cave and flow due to gravity.The correct answer is: Sublevel cavingDrilled and blasted from sublevels below.Used for massive, weak ore bodies.
90
What is the main challenge with room and pillar mining?
Discuss
Answer & Solution
Answer: Option A
Solution:
Room and pillar mining leaves behind supporting pillars.The correct answer is: Ore loss in pillarsPillars cannot always be recovered, causing unrecoverable reserves.Design optimization helps balance recovery and safety.