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-8 section-3

Each section contains 100 MCQs on Mine Ventilation .

A place is not considered to be free from fire damp if the gas percentage is above . . . . . . . .

A) 1.5 B) 1.75 C) 1.15 D) 1.25

Discuss

Answer & Solution

Answer: Option D

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

The basic working principle behind the aneroid barometer.

A) Charles law B) Boyles law C) Moscues law D) Kirchef law

Discuss

Answer & Solution

Answer: Option B

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

Hopcalite detector manufactured by the company.

A) MSA B) Drager C) Siebe German Co. D) EMCOR

Discuss

Answer & Solution

Answer: Option A

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

The impurity in mine air way is

A) liquid drop lets B) water particles C) oxygen D) none

Discuss

Answer & Solution

Answer: Option A

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

Minimum percentage of CO detects by multi gas detector in . . . . . . . . ppm.

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

Discuss

Answer & Solution

Answer: Option D

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

CO forms explosive mixture with air present within the range nearly . . . . . . . . by vol.

A) 8 - 10% B) 4.5 - 14% C) 12 - 75% D) 4.3 - 45%

Discuss

Answer & Solution

Answer: Option C

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

The colour of hoomalite

A) brown B) green C) grayish white D) black

Discuss

Answer & Solution

Answer: Option C

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

In still air flame of a flame safety lamp is extinguished at CO₂ percentage of . . . . . . . .

A) 2 - 3 B) 8 - 10 C) 3 - 4 D) 5 - 8

Discuss

Answer & Solution

Answer: Option C

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

Number of blades in a single inlet centrifugal fan.

A) 32 B) 128 C) 64 D) 96

Discuss

Answer & Solution

Answer: Option C

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

Identify the method for testing methane in mine are

A) chemical analysis B) detectors C) flame safety lamps D) all of these

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