The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is

A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be

A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,

The ratio of maximum shear stress to average shear stress of a circular beam, is

Shear strain energy theory for the failure of a material at elastic limit, is due to

A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is

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