Question

Which type of foundation should be adopted in a clayey or lose type of soil which considerably swells and shrinks by variation in the moisture content.

(a) Raft foundation

(b) Inverted arch foundation

(c) Cantilever foundation

(d) Grillage foundation

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This is a very interesting question from Foundations Based on Different Conditions in portion Foundations of Construction & Building Materials

Answer 1

The correct answer is (a) Raft foundation

The explanation is: In the case of clay or loose type of soil, Raft foundation is very helpful in increasing the bearing power of soil which becomes very useful when load coming on the soil is practically uniform.