Mine Ventilation - Study Mode
[#391] Critical temperature of CO
Correct Answer
(C) -140°C
[#392] The detection of CO by a flame safety lamp.
Correct Answer
(B) not recommended
[#393] The equation for Charle's Law
Correct Answer
(A) $$frac{{{V_2}}}{{{V_1}}} = frac{{{T_2}}}{{{T_1}}} = frac{{273 + {C_2}}}{{273 + {C_1}}} = { ext{Constant}}$$
[#394] Critical pressure of nitrogen is
Correct Answer
(C) 35 atoms
[#395] In a mine ventilation system, the resistances of two splits A and B are 0.5 Ns 2 m -8 and 2 Ns 2 m -8 respectively. Combined resistance of two shafts and trunk airways is 0.7 Ns 2 m -8 . A quantity of 20 m 3 /s of air passes through split A. The total air quantity passing the mine in m 3 /s is
Correct Answer
(A) 30