🌬️ Mine Ventilation MCQ Questions - Part 05 (Final)
61. In India, who is responsible for enforcement of ventilation rules in mines?
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Answer: A. DGMS
62. As per Coal Mines Regulations, velocity of air in gassy seams should not be less than:
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Answer: B. 0.5 m/s
63. In fiery seams, what type of fans are mandatory?
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Answer: B. Flameproof electrical fans
64. Which form is required to record statutory ventilation measurements?
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Answer: A. Form 6A
65. Ventilation planning for a new mine is mainly based on:
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Answer: B. Production rate & gas emission
66. Pressure survey in mines is done to:
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Answer: B. Check distribution & leakage
67. In case of fire, reverse ventilation is applied to:
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Answer: B. Drive back smoke & gases from shaft
68. For effective fire control, which gas monitoring is most important?
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Answer: C. Carbon monoxide %
69. A case study of Chasnala disaster (1975) highlighted need for:
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Answer: B. Flood control in mines
70. Ventilation stopping material preferred in fiery seams:
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Answer: B. Brick / Concrete (airtight)
71. Ventilation plans & surveys must be updated at least:
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Answer: C. Every 3 months
72. The maximum velocity of air in haulage roadways allowed is:
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Answer: A. 6 m/s
73. Shock losses in mine ventilation occur at:
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Answer: B. Bends, junctions & splits
74. The factor of safety in mine fans is generally taken as:
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Answer: C. 1.5
75. Ultimate goal of mine ventilation is to:
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Answer: B. Maintain safe & healthy environment underground
🌬️ Mine Ventilation MCQ Series (Complete)
You have completed all 75 Mine Ventilation MCQs divided across 5 Parts.
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