Question

According to IS codes, the maximum differential settlements should not exceed ___________ in the foundation on clayey soil.

(a) 25 mm

(b) 100 mm

(c) 25 mm

(d) 40 mm

This question was posed to me during an interview for a job.

This interesting question is from IS Code of Practice for Design of Raft Foundations topic in portion Shallow Foundations of Geotechnical Engineering II

Answer 1

The correct choice is (c) 25 mm

Best explanation: According to IS: 2950-1965 code of practice, the maximum settlement should not exceed 40 mm in the foundation on clayey soils and 25 mm in foundations on clayey soils.