2. 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
3. For a simply supported beam of length L, the bending moment M is described as M = a (x - x3/L2), 0 ? x < L; where a is a constant. The shear force will be zero at
6. The ratio of the maximum deflections of a beam simply supported at its ends with an isolated central load and that of with a uniformly distributed load over its entire length, is
Correct Answer: bending stress is same throughout the beam
8. A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be
