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Mine Ventilation MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Mine Ventilation. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Mine Ventilation chapter is particularly important for students studying mining engineering. Page-7 section-4

Each section contains 100 MCQs on Mine Ventilation .
61
The liquid employed in kata thermometer.
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Answer & Solution
Answer: Option C
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62
1 mm Hg difference for every . . . . . . . . m vertical difference.
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Answer & Solution
Answer: Option D
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63
The gas which is produced by when coal containing sulphur is heated out of contact with air to a temperature of about
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Answer & Solution
Answer: Option A
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64
Critical temperature of oxygen.
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Answer & Solution
Answer: Option D
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65
In deep mines 1000 - 1500 m deep the air pressure is about . . . . . . . .% more than at surface.
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Answer & Solution
Answer: Option D
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66
Flame safety lamp light diminishes increasing 5% of black damp, light diminished by . . . . . . . .
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Answer & Solution
Answer: Option C
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67
The effect of breathing air containing CO in air is 0.2%.
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Answer & Solution
Answer: Option A
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68
The methane find in the working in following ways.
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Answer: Option E
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69
The weight of AFD . . . . . . . . without battery.
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Answer & Solution
Answer: Option B
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70
Which is formed in stagnent water in old workings in the area of goaf.
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Answer & Solution
Answer: Option D
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