UPSC Civil Service Exam Questions - Engineering

Q1:

A beam of square beam is given by section 'a' is used with its diagonal horizontal. The modulus of section of the

A

B

C

D

ANS:C -

Z=I/Y Here i=d^4/12 & y=d/2 where d = length of diagonal=(√2)*a.
So, the ans will be option C.