Theory of Structures - Engineering

Q1:

A bar of square section of area a2 is held such that its one of its diagonals is vertical. The maximum shear stress will develop at a depth h where h is

A

B

C

D

ANS:B -

For rhombus, max shear occurs at 3d/8 from apex where d is diagonal now d = √ a (side)
substitute d=a^(1÷2) .
We get 3a/(4×2^(1÷2)).