Inclined water gauge can be read upto . . . . . . . . mm and in same cases even upto . . . . . . . . mm depending upon scale graduation.
A. 0.2 mm; 0.2 mm
B. 0.3 mm; 0.3 mm
C. 0.2 mm; 0.02 mm
D. 0.5 mm; 0.005 mm
Answer: Option C
This Question Belongs to Mining Engineering >> Mine Ventilation
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The mechanical mixture of gases existing in a mine given off after explosion called
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B. Stink damp
C. Black damp
D. After damp
A Drager Gas Mask does not filter
A. Water vapour
B. Nitrous fumes
C. Carbon monoxide
D. Carbon dioxide
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