Match the following:
| Mine gas | Principal constituent |
| P. Stink damp | 1. CO |
| Q. White damp | 2. H2S |
| R. Black damp | 3. CH4 |
| S. Fire damp | 4. CO2 |
A. P-1, Q-2, R-3, S-4
B. P-3, Q-4, R-1, S-2
C. P-2, Q-1, R-4, S-3
D. P-2, Q-1, R-3, S-4
Answer: Option C
This Question Belongs to Mining Engineering >> Mine Ventilation
Related Questions on Mine Ventilation
The mechanical mixture of gases existing in a mine given off after explosion called
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B. Stink damp
C. Black damp
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