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-10 section-2

Each section contains 100 MCQs on Mine Ventilation .

At what % H₂ by volume of air, the lag of ignition of methane is completely eliminated

A) 20% B) 30% C) 35% D) 40%

Discuss

Answer & Solution

Answer: Option B

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

It has been found that fire damp can came from strata overlying the seam being mined upto distance.

A) 200 m B) 300 m C) 250 m D) 300 m E) 450 m

Discuss

Answer & Solution

Answer: Option C

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

In III degree gassy mines, the minimum qualification of a shot fires should be . . . . . . . . with gas testing.

A) shot firer certificate B) overman certificate C) sirdar certificate D) manager's certificate

Discuss

Answer & Solution

Answer: Option B

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

The delay between ignition and source of heat is known as

A) lag of ignition B) incubation period C) saturation D) thermal conductivity

Discuss

Answer & Solution

Answer: Option A

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

If one kg of methane in burning evolves . . . . . . . . KCal of heat.

A) 500 B) 1500 C) 13600 D) 15000

Discuss

Answer & Solution

Answer: Option C

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

Critical temperature of CO

A) 100°C B) 140°C C) -140°C D) -150°C

Discuss

Answer & Solution

Answer: Option C

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

The detection of CO by a flame safety lamp.

A) recommended B) not recommended C) co produced noticable cap D) co burns with bluish flame

Discuss

Answer & Solution

Answer: Option B

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

The centrifugal fan types are . . . . . . . .

A) radial blades B) backward blades C) forward blades D) none

Discuss

Answer & Solution

Answer: Option A

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

The equation for Charle's Law

A) $$\frac{{{V_2}}}{{{V_1}}} = \frac{{{T_2}}}{{{T_1}}} = \frac{{273 + {C_2}}}{{273 + {C_1}}} = {\text{Constant}}$$ B) $$\frac{{RA}}{{RB}} = \sqrt {\frac{{DB}}{{DA}}} $$ C) $$\frac{{{P_1}{V_1}}}{{{T_1}}} = \frac{{{P_2}{V_2}}}{{{T_2}}} = {\text{Constant}}$$ D) $$\frac{{0.4645B}}{{273 + t}}$$

Discuss

Answer & Solution

Answer: Option A

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

100

Critical pressure of nitrogen is

A) 25 atoms B) 30 atoms C) 35 atoms D) 40 atoms

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