Mining Engineering > GATE 2026 > Mine Ventilation - Airway Resistance
In an underground mine, an airflow of 30 m3 s-1 is delivered through a circular opening having a diameter of 5 m and a length of 500 m. Assuming that there is no change in the surface characteristics, the diameter of the opening, in m, required to double the quantity of airflow at same pressure loss is _______________. (rounded off to two decimal places)
Correct : 6.60
Similar Questions
A trapezium has vertices marked as P, Q, R and S (in that order anticlockwise).
The side PQ is parallel to side SR.
Further, it is given that, PQ = 11 cm, QR...
Mosquitoes pose a threat to human health. Controlling mosquitoes using
chemicals may have undesired consequences. In Florida, authorities have used
geneticall...
Consider the following inequalities.
(i) 2π₯ β 1 > 7
(ii) 2π₯ β 9 < 1
Which one of the following expressions below satisfies the above two
inequalities?
Total Unique Visitors
Loading......