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Coal Mining MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Coal Mining. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Coal Mining chapter is particularly important for students studying mining engineering. Page-9 section-5

Each section contains 100 MCQs on Coal Mining .
81
Roadway re-utilisation is possible in longwall face.
Discuss
Answer & Solution
Answer: Option D
Solution:
In longwall mining, the layout and organization of the working face determine the possibility of roadway re-utilisation.

Double unit longwall face allows for the re-use of roadways (gate roads) since two faces are developed adjacent to each other and can share the same set of main roadways.

This layout leads to better efficiency and cost-effectiveness by reducing the need to develop new roadways for each face.

Single unit and Z unit longwall systems typically do not allow for this reuse because each face generally requires separate infrastructure.

Therefore, roadway re-utilisation is possible in Double unit longwall face.
82
For every 10 m length of horizontal pipe range there is a loss of . . . . . . . . head.
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
83
Multisection working in descending order employ longwall method of coal extraction with . . . . . . . . roofing.
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
84
Which drill machine can control flow of water during drilling
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
85
The type of permanent lining employed where running sand encountered during sinking
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
86
If the pillars are not strong, they may be crushed due to sudden pressure called
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
87
Geothermic gradient in high in
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
88
Tail gate supported by hydraulic props with 'I' section channel bars upto . . . . . . . . from face.
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
89
Where sand stowing adopted for stowing the goaf maximum distance between packed goaf edge and face generally . . . . . . . . proper roof control.
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
90
The gate belt conveyor centrally located to serve for two adjacent longwalls, progressing in same direction the combine face is
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board