A constant head permability test is performed on a soil that is 2 cm X 2 cm square and 2.5 cm long. The head difference applied during the test is 18 cm, and 5 cm^3 is collected over a time of 100 sec.
(a) compute the permability based on these conditions and results.
(b) a falling head permability test is to be done on the same soil specimen in the same time, and the standpipe diamter is .8 cm. if the average head during the test should be 18 cm, what are h1 and h2?