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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-2 section-4

Each section contains 100 MCQs on Mine Ventilation .
11
The CH4 emission from a prospective coal mine can be forcasted using
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Answer & Solution
Answer: Option A
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12
The distance required for complete mixing of methane in air by turbulent diffusion in a duct is given by the following equation +2% accuracy is
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Answer & Solution
Answer: Option D
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13
The percentage of O2 present in atmosphere by weight
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Answer & Solution
Answer: Option B
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14
The pressure developed by a mine fan is small and is measured by a manometer, the fluid used is . . . . . . . .
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Answer & Solution
Answer: Option B
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15
What should be the speed of air current when the wet bulb temperature exceeds 30.5°C
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Answer & Solution
Answer: Option D
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16
If CO2 replaces air by . . . . . . . .% loss of consciousness causes to person.
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Answer & Solution
Answer: Option D
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17
If the wet bulb temperature exceeds 30.5% at any place air current should be faster than . . . . . . . .
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Answer & Solution
Answer: Option B
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18
Acetylene lamp, burns when the oxygen percentage as low as . . . . . . . .
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Answer: Option A
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19
Air flow from high pressure range to low pressure range. The difference of pressure caused by purely natural means called . . . . . . . .
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Answer & Solution
Answer: Option B
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20
The generation of heat on the oxydation of CO to CO2 has utilised by the detector . . . . . . . .
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Answer: Option B
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