Test: Stresses in Beams Level - 1 - Mechanical Engineering MCQ

The maximum compressive stress at the top of a beam was 1600kg/cm² and the corresponding tensile stress at its bottom was 800 kg/cm2. If the depth of the beam was 15 cm the neutral axis from the top will be

The width of the strongest beam of rectangular section that can be cut out of a cylindrical log of wood whose diameter is 30 cm would be (in cm)

A cantilever of constant depth carries a uniformly distributed load on the whole span. To make the maximum stress at all sections the same, the breadth of the section at a distance ‘x’ from the free end should proportional to

A beam of T-section has I = 1000 cm4 and depth 10 cm. Flange of the section is in tension. If the maximum tensile stress is two times the maximum compressive stress, what is section modulus in compression?

For the configuration of loading shown in the given figure, the stress in fiber AB is given by

A beam having rectangular cross section 200mm wide and 400mm deep is simply supported over a span of 5m. It is carrying a concentrated load of 10 kN at the centre of the span. The maximum bending stress developed at quarter span of the beam is

Two beams of cross-section circular and square have the same length, same allowable bending stress and the same moment of resistance. The weight of the beam with circular section is K times that of the square section, where ‘K’ is

For a rectangular section, keeping breadth ‘’b’’ constant, the depth ‘’d’’ for uniform strength beam will have relation with bending moment ‘’M’’ as

If a beam is cut in halves horizontally and the two halves are laid side by side, it can in comparison to the original beam carry

A hollow beam of square section with external dimensions of 50.0 mm and thickness 5.0 mm can sustain a stress of 100 MPa. Its capacity in flexure is

A square beam laid flat is then rotated in such a way that one of its diagonal becomes horizontal. How is its moment capacity affected?

A T-section beam is simply supported and subjected to a uniform distributed load over its whole span. Maximum longitudinal stress in the beam occurs at

The ratio of flexibility of ‘n’ loose beams (b × d) placed one over the other to the flexibility of one integral beam (nb × d) is

A solid circular cross-section cantilever beam of diameter ϕ = 100 mm carries a shear force of 10 kN at the free end. The maximum shear stress is

A wooden beam of rectangular cross section 100mm × 200mm is formed by gluing two identical beams of square cross section. If the safe shear stress of the glue is 3 N⁄mm², the safe shear strength

The given figure (all dimensions are in mm) shows an I-section of the beam.

If a beam of rectangular cross-section is subject to a vertical shear force S, then how much shear force will be carried by the upper one third of the section?