Mining Engineering > GATE 2019 > Mine Ventilation
The characteristic curves of two mine fans installed in series in a fan drift are P=2000 6Q-0.2Q2 and P=3000-8Q-0.2Q2 where P is pressure in Pa and Q is quantity in m3/s. If the mine quantity is 70 m3/s, the mine resistance, in Ns2m-8, (rounded off to two decimal places) is _________.
Correct : 0.40
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The main surface fan of a mine as shown in the figure, has characteristic curve approximated by P=1700-10Q where P is pressure in Pa and Q is quantity in m3/s....
The main surface fan of a mine as shown in the figure, has characteristic curve approximated by P=1700-10Q where P is pressure in Pa and Q is quantity in m3/s....
The main surface fan of a mine as shown in the figure, has characteristic curve approximated by P=1700-10Q where P is pressure in Pa and Q is quantity in m3/s....
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