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Introduction to Mining Engineering MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Introduction to Mining Engineering. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Introduction to Mining Engineering chapter is particularly important for students studying mining engineering. Page-8 section-1

Each section contains 100 MCQs on Introduction to Mining Engineering .
71
A 2.5 m thick coal seam lying at an average depth of 100 m has been developed by bard and pillar method. The width of the square pillars is 30 m (centre to centre) and the gallery width is 4 m. The average density of the overlying strata is 26 kN/m3 and the pillar strength is 4500 kN/m2. Extraction ratio during the development of the pillar is
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Answer & Solution
Answer: Option D
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72
Soutirage mining is the alternative name of
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Answer & Solution
Answer: Option B
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73
In room and pillar mining multiple faces are advanced but driving entries or rooms follows a definite pattern known as
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Answer & Solution
Answer: Option B
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74
What is the minimum size of coal pillar when the depth of coal seam from surface remains between 240 m to 360 m and gallery width does not exceed 3 m?
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Answer & Solution
Answer: Option B
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75
A haul ramp of 6% grade is to be constructed connecting a bench of 15 m height to the surface. If the cost of ramp construction is 1 million rupees per km, the cost of this ramp construction in million rupees will be
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Answer & Solution
Answer: Option A
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76
What is the standard of lighting required for the workplace of HEMM's of opencast mine?
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Answer & Solution
Answer: Option D
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77
Ratio of water and emulsion in hydraulic fluid is
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Answer & Solution
Answer: Option B
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78
Ring pattern drill holes are provided in
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Answer & Solution
Answer: Option C
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79
What will happen if a Booster fan is placed too far inbye of the neutral point in either intake or return?
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Answer & Solution
Answer: Option A
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80
A developed panel for a coal seam having incubation period of 6 months has 32 square pillars under extraction having size 25 m and height 3.0 m. Density of coal is 1.4 tonne/m3. Extraction ratio during depillaring is expected to be 75%. To depillar the panel within the incubation period, assuming 25 working days in a month, the production from the panel in tonne/day is
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Answer & Solution
Answer: Option C
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