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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-4 section-4

Each section contains 100 MCQs on Mine Ventilation .
31
The relative rates of disfusion of number of gases vary inversely as square root of their relative densities called
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Answer & Solution
Answer: Option D
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32
CO is than air
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Answer & Solution
Answer: Option B
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33
Metal mines, not deeps, say upto 300 m, the quantity of air that should go down the incline should be . . . . . . . . m3/min.
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Answer & Solution
Answer: Option D
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34
For judging a working place suitable for man to work efficiently, without discomfort it is necessary to know.
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Answer & Solution
Answer: Option D
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35
Large concentrations of black damp in mins. can be removed only by improving
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Answer & Solution
Answer: Option C
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36
If dry time is used, the result of cooling power by
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Answer: Option A
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37
The safe limit of CO in the air of an under ground working for persons to work is
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Answer: Option B
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38
If CO2 replaces air by . . . . . . . .% severe distress for few min.
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Answer: Option C
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39
The weight of OXD-2M compact instrument
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Answer: Option D
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40
SO2 produced in mines in small quantities during
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Answer & Solution
Answer: Option D
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