The shear stress at the outermost fibres of a circular shaft under torsion is

Related MCQs

• A solid circular shaft and a thin walled circular tube made of the same material and having the same weight are stressed in torsion to the same maximum shear stress. The ratio of the amounts of strain energy stored in the two shafts would be
• A solid circular shaft of diameter D carries are axial load W. If the same load is applied axially on a hollow circular shaft of inner diameter D/2, the ratio of stress in a solid shaft to a hallow one is
• The shear stress at the centre of a circular shaft under torsion is
• When a shaft is subjected to torsion, the shear stress induced in the shaft varies from
• Two steel shaft each of length L and outside diameter D are subjected to uniform torsion. The first shaft is solid while the second one is hollow with inside diameter D/2. The ratio of the strain energies that these two shafts can absorb without exceeding a maximum allowable shear stress, would be
• The shear stress when a circular shaft subjected to torsion is
• Two shafts of the same material are subjected to the same torque. If the first shaft is of solid circular section and the second shaft is of hollow section whose internal diameter is 2/3 of the outside diameter, the ratio of weights of hollow shaft to solid shaft would be
• The ratio of maximum shear stress to the average shear stress in a rectangular beam subjected to torsion is
• Two shafts 'A' and 'B' are made of same material. The shaft 'A' is solid and has diameter D. The shaft 'B' is hollow with outer diameter D and inner diameter D / 2. The strength of hollow shaft in torsion is
• The ratio of maximum shear stress to average shear stress in case of a circular beam transmitting power is equal to