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UPSC Civil Service Exam Questions - Engineering

Q1:

A hollow circular column at internal diameter 'd' and external diameter '1.5 d' is subjected to compressive load. The maximum distance of the point of application of load from the centre for no tension is

A d/8

B 13d/48

C d/4

D 13d/96

ANS:B - 13d/48

For a hollow circular section of external diameter D and internal diameter d, then, I=Ixx=Iyy.