Question

The value of factor of safety used, for finding safe bearing capacity is __________

(a) 2.5

(b) 2

(c) 4

(d) 3

The question was posed to me in unit test.

My question comes from Bearing Capacity topic in portion Bearing Capacity of Geotechnical Engineering II

Answer 1

Right choice is (b) 2

For explanation: In order to determine the safe bearing capacity, it would be normally sufficient to use a factor of safety of 2 or 2.5 on the ultimate bearing capacity.