(CE Board Exam November 2018) An experiment to determine the permeability of a soil sample was conducted. The permeameter in a falling head permeability test set-up involves a cylindrical soil sample 100mm in diameter and a height of 200mm. The hydraulic head in the 10-mm diameter standpipe through which the test water passed drop from 1m to 600mm in one minute of observation. In that duration, the water collected in the graduate was recorded at 2L. From these data, a. Evaluate the coefficient of permeability of the soil sample in cm/sec b. Determine the time it takes for the water to drop from 1meter to 750mm c. What will be the hydraulic head in the standpipe after 2 minutes

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Q: falling head permeability test

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