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-3 section-4

Each section contains 100 MCQs on Mine Ventilation .

Internationally accepted value of standard atmospheric pressure in SI units is . . . . . . . . N/m².

A) 101325 B) 150325 C) 20000 D) 121325

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The percentage of oxygen present in mine atmospheric air by volume.

A) 20.4 B) 21.1 C) 20.28 D) 22.1

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

How much O₂ inhaled by a healthy person

A) 0.185 L/min B) 0.220 L/min C) 0.330 L/min D) 0.250 L/min

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The instruments helpful for proper control of mine ventilation, ones environmental conditions for human work are

A) thermometers B) barometers C) hygrometers D) velometers E) all these

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Answer & Solution

Answer: Option E

No explanation is given for this question. Let's Discuss on Board

Every main mechanical ventilator, there should be of . . . . . . . . indipendent electric circuits for power supply to it.

A) 2 B) 3 C) 4 D) 1

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

A well designed evasee increases the . . . . . . . . of far.

A) flow B) efficiency C) losses D) cooling

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Modern flame safety lamp can withstar an air velocity of in m/s.

A) 10 B) 15 C) 20 D) 30

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The flame safety lamp is used for detecting.

A) CO B) CH₄ C) O₂ defficiency D) all of these

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Critical pressure of CO

A) 25 atoms B) 35 atoms C) 15 atoms D) 40 atoms

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

SO₂ is . . . . . . . . gas

A) noxious B) inflammable C) poisonous D) non poisonous

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Mine Ventilation MCQs Questions & Answers | Mining Engineering