Question

Both conventional and flexible method can be used only in the case when _________

(a) Foundation is laid on cohesive soil

(b) Soil pressure is low

(c) Foundation is flexible

(d) Load is concentrated on larger area

I got this question in a national level competition.

I need to ask this question from IS Code of Practice for Design of Raft Foundations topic in portion Shallow Foundations of Geotechnical Engineering II

Answer 1

Right option is (c) Foundation is flexible

For explanation: Conventional and flexible methods are to be used in case the foundation is comparatively flexible and the loads tend to concentrate over small areas.