GATE Exam Questions - Engineering

Q1:

The ultimate bearing capacity of a soil is 300 kN/m2. The depth of foundation is 1 m and unit weight of soil is 20 kN/m3. Choosing a factor of safety of 2.5, the net safe bearing cacpacity is

A 100 kN/m2

B 112 kN/m2

C 800 kN/m2

D 100.5 kN/m2

ANS:D - 100.5 kN/m2

112 correct.
300-20*1=280.
Net safe BC= 280/2.5=112.5kN/m2.