The width b and depth d of a beam cut from a wooden cylindrical log of 100 cm diameter for maximum strength are :

A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be

For a beam of uniform strength keeping its depth constant, the width will vary in proportion to

The ratio of the maximum deflection of a cantilever beam with an isolated load at its free end and with a uniformly distributed load over its entire length, is

The property by which a body returns to its original shape after removal of the force, is called