A question in GATE 2012 Mining Engineering Paper with Solution has been updated:
In a longwall panel, the main gate road is 1000 m long, 4.5 m wide and 2 m high. The gate road is to be used for airflow at the rate of 17
. Considering a coefficient of resistance of airways of 0.01, the pressure in Pa required to maintain the airflow in the gate road is
- 7885.32
- 51.83
- 463.84
- 875.98
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