The formula for finding the velocity of air . . . . . . . .
A. $$4.015\sqrt {wg} $$
B. $$3\sqrt {wg} $$
C. $$4.8\sqrt {wg} $$
D. $$6\sqrt {wg} $$
Answer: Option A
Related Questions on Mine Ventilation
The mechanical mixture of gases existing in a mine given off after explosion called
A. White damp
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
Join The Discussion