The type of backfill is saturated clay. What is its unit weight?
(a) 1040kg/m^3
(b) 2080kg/m^3
(c) 2000kg/m^3
(d) 1500kg/m^3
The question was asked in an internship interview.
The above asked question is from Forces and Loads on Sewer topic in section Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering