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UPSC Civil Service Exam Questions - Engineering

Q1:

Consider the following statements regarding settlement of foundations :
1. Differential settlement of foundation leads to structural damage to the superstructure.
2. In non-cohesive soils, the major component of settlement is due to consolidation.
3. Lowering of ground water table contributes of settlement of foundations.
Of these statements :

A 1 and 2 are correct

B 1 and 3 are correct

C 2 and 3 are correct

D 1, 2 and 3 are correct

ANS:D - 1, 2 and 3 are correct

Well in non-cohesive Soil means Sandy Soil and in sandy soil immediate settlement occurs, and consolidation is time-dependent settlement, So I think B must be the right answer.