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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-8 section-4

Each section contains 100 MCQs on Mine Ventilation .
71
The formulate for finding the vertical water gauge by inclined manometer is
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Answer & Solution
Answer: Option A
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72
The percentage of CO2 present in atmospheric air by volume.
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Answer: Option A
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73
Inclined manometers, used to measure very small differences of pressure upto . . . . . . . . mm of water.
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Answer: Option D
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74
Inhalation of pure O2 under normal pressure of upto . . . . . . . . hours no harmful effect.
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Answer: Option C
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75
In a controlled recirculation system, there can not be provision to supress.
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Answer: Option D
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76
The silver coin turns black in the present of . . . . . . . . gas.
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Answer: Option D
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77
The percentage of N2 present in atmospheric air by weight (including all innert gases).
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Answer: Option C
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78
The speed of centrifugal fan varies from . . . . . . . .
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Answer: Option B
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79
The percentage of CO2 present in mine air by volume.
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Answer: Option B
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80
In metal mines stink damp produced by the action of . . . . . . . . water on sulphide are
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Answer: Option B
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