engineering recuitment GATE CE 2023-24 Test Series Soil Mechanics and Foundation Engineering Permeability
In a falling head permeameter test, the head drops by 5 cm in 10 minutes from the initial head of 30 cm. The cross-sectional area and height of the sample is 50 cm2 and 5 cm respectively. Calculate the additional time (in minutes) required to run test the so the head of the sample falls to 20 cm.
Enter numerical value using the virtual keypad. Round off where necessary.