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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-9 section-2

Each section contains 100 MCQs on Mine Ventilation .
81
The length of glass tube in Fortin barometer . . . . . . . . and the inside diameter . . . . . . . .
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Answer & Solution
Answer: Option A
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82
The principle behind the flame safety lamp and spiral alarm detectors . . . . . . . .
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Answer & Solution
Answer: Option A
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83
The effect of breathing air containing CO in air is about 0.12 . . . . . . . .
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Answer & Solution
Answer: Option B
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84
The barometric pressure which increases with . . . . . . . . and decreases with . . . . . . . .
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Answer & Solution
Answer: Option A
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85
The permissible limit of H2S is
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Answer & Solution
Answer: Option B
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86
The Argon gas behaves like a
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Answer & Solution
Answer: Option D
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87
Mesh size of flame safety lamp is
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Answer: Option C
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88
Day plants absorb . . . . . . . . from air by photosynthesis process.
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Answer & Solution
Answer: Option C
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89
Find the velocity of air m/sec. the w.g is 25 mm and density of air 1 kg/m3.
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Answer & Solution
Answer: Option C
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90
Dry kata for light manual workers is
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Answer & Solution
Answer: Option C
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