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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-6 section-5

Each section contains 100 MCQs on Coal Mining .
51
The contribution of tertiary coal is about, what percent of the country coal resources is about.
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Answer & Solution
Answer: Option C
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52
In extraction of coal pillars by caving, what should be the maximum area of roof exposure at any working place at any time.
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Answer & Solution
Answer: Option A
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53
Consider that pillar size is 30 m centre to centre and gallaries are 4 m wide. Find the percentage of extraction.
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Answer & Solution
Answer: Option C
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54
The input of water in the mixing cone is measured or calculated by an instrument . . . . . . . .
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Answer & Solution
Answer: Option C
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55
The device used for collect the core
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Answer & Solution
Answer: Option D
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56
The pillars formed during development are split into small portions called . . . . . . . .
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Answer & Solution
Answer: Option B
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57
Kaolinite chemical is used for
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Answer: Option B
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58
In longwall advance workings, nearly . . . . . . . . te of sand per te of coal raised is required.
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Answer & Solution
Answer: Option A
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59
Calyx drilling also called as
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Answer & Solution
Answer: Option B
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60
Conveyor which receives coal from the face conveyor for its transport outbye is
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Answer & Solution
Answer: Option A
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