Mine Ventilation MCQs Questions & Answers

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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-5

Each section contains 100 MCQs on Mine Ventilation .

The formulae for finding density of air in kg/m³.

A) $$\frac{{0.4645B}}{{273 + t}}$$ B) $$\frac{{0.4645B}}{{273 + {t_u} + {t_d}}}$$ C) $$\frac{{{t_u} + {t_d}}}{{0.4645D}}$$ D) $$\frac{{{P_1}{V_1}}}{{{T_1}}} - \frac{{0.4645B}}{{273 + t}}$$

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Answer & Solution

Answer: Option A

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At what percentage of CO₂, safety lamp begins to die down.

A) 1.0 B) 0.5 C) 0.1 D) 3

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Answer & Solution

Answer: Option D

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Nitrogen used for quenching . . . . . . . .

A) gas B) explosives C) fires D) innudation

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Answer & Solution

Answer: Option C

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The fluid commonly used in 'U' tube manometer if more pressure difference.

A) alchohol B) water C) lighter liquid D) mercury

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Answer & Solution

Answer: Option D

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Homalite is a mixture of

A) iodine pentoxide and sulphuric acid B) codine pentoxide and sulphate of pelladium C) sulphuric acid and maganese dioxide D) copper oxide and pentoxide

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Answer & Solution

Answer: Option A

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Flame safety lamp is also known as

A) DGMS safety lamp B) Electric safety lamp C) Davy safety lamp D) Mark's safety lamp

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Answer & Solution

Answer: Option C

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The percentage of O₂ percent in atmospheric air by volume.

A) 20.93 B) 23.15 C) 20.79 D) 23.19

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Answer & Solution

Answer: Option A

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Basing on shape of the blade the centrifugal fans classified into . . . . . . . . types.

A) 2 B) 4 C) 3 D) 5

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Answer & Solution

Answer: Option C

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Arrange and write the following parts of flame safety lamp from bottom to top

A) oil velsel B) outer glass C) wick holder wick retain D) magnetic lock

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Answer & Solution

Answer: Option A

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The difference in densities between two shafts may be produced by the following factors are

A) unequal depth of shafts B) presence of fire in one of shaft C) presence of fire damp D) movement of cage in shaft E) all these

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Answer & Solution

Answer: Option E

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Mine Ventilation MCQs Questions & Answers | Mining Engineering