Which of the following is incorrect regarding Cement concrete sewers?
(a) They are economical
(b) Can be manufactured at the site
(c) They can be made of any desired strength
(d) They cannot withstand tensile stress
I have been asked this question during an interview.
The origin of the question is Material for Sewers topic in division Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering