If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by________?
AD = 0.07775 aP
BD = 0.00775 aP
CD = 0.775 Pa
DD = 0.0775 aP
Correct answer
B. D = 0.00775 aP
Explanation
The correct answer is D = 0.00775 aP.