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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-5 section-2

Each section contains 100 MCQs on Mine Ventilation .
41
Mine air should contain minimum . . . . . . . .% O2 in USA.
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Answer & Solution
Answer: Option C
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42
With 0.15% of CO in air the bird shows
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Answer & Solution
Answer: Option A
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43
An instrument used to find relative humidity of air in mines.
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Answer & Solution
Answer: Option B
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44
Shelf live of the CO tubes in multi gas detector
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
45
A person doing exercise consumes oxygen at . . . . . . . .
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Answer & Solution
Answer: Option B
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46
The lowest possible temperature and is the point at which all heat should be extracted from a substance, if it can be cooled sufficiently called
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Answer & Solution
Answer: Option B
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47
25% of black damp (75% air, i.e. 15% O2 air 3% CO2) the physiological effect will be causes is
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Answer & Solution
Answer: Option D
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48
After affects of CO poisoning are
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
49
Plates of oldham cap lamp battery is immersed in a solution. What is composition of solution?
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Answer & Solution
Answer: Option C
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50
The bulb of kata thermometer covered with . . . . . . . . cloth.
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Answer & Solution
Answer: Option B
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