Sir Elton Hercules John CBE (born Reginald Kenneth Dwight on 25 March 1947) is a multiple Grammy and Academy Award-winning English pop/rock singer, composer and pianist. Source(s): http://en.wikipedia.org/wiki/Elton_John
The âPerc Testâ. A Perc Test (also known as âPerk Testâ, and more formally known as a Percolation Test), is a soil evaluation that tests the rate at which water drains through soil.
First, since. only the portion of the soil passing the No. 4 sieve is used in the. laboratory permeability test, the sizes of all soil particles or ag-. gregates of soil particles (clods) are less than 4.75 mm. However, in the field, the size of the clods associated with compacted soils.