Question:
Four identical districts of a mine are ventilated with a quantity of 3500 m3/min at a fan drift pressure of 1.15 kPa. When one of the districts is sealed off, the change in resultant resistance is 0.072 Ns2m-8. If the fan is stopped, keeping a district sealed, the quantity through the mine becomes 850 m3/min. The natural ventilation pressure in Pa, is
Four identical districts of a mine are ventilated with a quantity of 3500 m3/min at a fan drift pressure of 1.15 kPa. When one of the districts is sealed off, the change in resultant resistance is 0.072 Ns2m-8. If the fan is stopped, keeping a district sealed, the quantity through the mine becomes 850 m3/min. The natural ventilation pressure in Pa, is
Updated On: Jul 18, 2024
- 72.12
- 82.28
- 105.56
- 144.56
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The Correct Option is B
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The correct option is (B): 82.28
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