The algebraic sum of the moments of the forces on either side of the section of a loaded beam is known as

A rigid prop is one which

The section modulus of a rectangular section is proportional to

When a rectangular beam is loaded longitudinally, shear develops

Torsion is produced in a beam due to

Partial derivative of strain energy gives

The shear force on a beam and the displacement are related by

An externally indeterminate structure is the one in which

The shape factor of circular section is