Strength of Materials - Section 1

The force in DB of the truss shown in below figure is

The energy stored in a beam of length L subjected to a constant B.M. is

If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called

A reinforced concrete beam is assumed to be made of

The radius of gyration of a rectangular section is not proportional to

In a tension test, the yield stress is 300 kg/cm2, in the octa hedral shear stress at the point is:

A beam is said to be of uniform strength, if

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is