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-3

Each section contains 100 MCQs on Mine Ventilation .

100 vol. of water dissolving at 15°C only . . . . . . . . vol. of nitrogen.

A) 1.2 B) 1.4 C) 1.6 D) 1.8

Discuss

Answer & Solution

Answer: Option D

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

The product of motive column and density of air in D.C shaft called

A) NVP B) PVT C) NPV D) FV

Discuss

Answer & Solution

Answer: Option A

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

Methane absorbs radiation of wave length . . . . . . . .

A) 4.5μ B) 5.5μ C) 6.5μ D) 7.5μ

Discuss

Answer & Solution

Answer: Option D

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

A 760 mm column of mercury is equivalent to . . . . . . . . meters of water column.

A) 9.34 B) 8.34 C) 10.34 D) 17.34

Discuss

Answer & Solution

Answer: Option C

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

This is not a safety feature of flame safety lamp

A) Asbestos rings packing B) Magnetic lock C) Spring loaded spill type valve D) Kerosene oil of approved type

Discuss

Answer & Solution

Answer: Option A

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

The formula for calculating density of air in D.C shaft.

A) $$\frac{{0.4645B}}{{273 + td}}$$ B) $$\frac{{0.4565B}}{{273 + tu}}$$ C) $$\frac{{0.4785B}}{{273 - tu}}$$ D) $$\frac{{0.4645{B^2}}}{{273 + td}}$$

Discuss

Answer & Solution

Answer: Option A

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

The O₂ is lighter than air

A) True B) False C) None D) Both A and B

Discuss

Answer & Solution

Answer: Option B

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

A three digit LCD indicates oxygen concentration within the range of 0 to . . . . . . . .

A) 25 B) 30 C) 40 D) 50

Discuss

Answer & Solution

Answer: Option B

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

The inclinatin of water gauge is conveniently adjusted to . . . . . . . . as the sine of that angle is . . . . . . . .

A) 5°; 1 B) 5° 44¹ 1; 0.1 C) 4° 54¹; 0.2 D) 3° 54¹ 1; 0.3

Discuss

Answer & Solution

Answer: Option B

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

Air samples and temperature readings should be taken once in . . . . . . . . days.

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

Discuss

Answer & Solution

Answer: Option D

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

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Mine Ventilation MCQs Questions & Answers | Mining Engineering