A simply supported beam of span L is subjected to two equal and opposite point loads of magnitude P, acting at a distance of L/3 from each support. Find the magnitude of bending moment (BM) and shear force (SF) at the mid-span.

A beam in pure bending is subjected to equal and opposite couples and no shear force. Which type of shear stress is zero?

The ratio of the maximum and minimum normal stresses is equal to _________ in the case of pure shear.

The ratio of plastic moment 'MP' of a member to the yield strength 'σy' of its material is called ____.