A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is____________________?

Related Mcqs:

1. If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (f /N)s__________________?

   A. 1/2
   B. 1/3
   C. 1/4
   D. 1/5

2. A shaft subjected to a bending moment M and a torque T, experiences__________________?

   A. Maximum bending stress = 32M d3
   B. Maximum shear stress = 16 T d3
   C. Both A. and B.
   D. Neither A. nor B.

3. If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 × 105 N/mm2) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm 2, the angle of twist in radians, is_________________?

   A. 0.001
   B. 0.002
   C. 0.0025
   D. 0.003

4. The ratio of maximum shear stress to average shear stress of a circular beam, is________________?

   A. 2/3
   B. 3/2
   C. 3/4
   D. 4/3

5. Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then________________?

   A. M/I = R/E = F/Y
   B. I/M = R/E = F/Y
   C. M/I = E/R = E/Y
   D. M/I = E/R = Y/F

6. The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is_______________?

   A. 1/2
   B. 2/3
   C. 1/4
   D. 1/3

7. The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is___________________?

   A. 1/8
   B. 1/4
   C. 1/2
   D. 1/3

8. The ratio of shear stress and shear strain of an elastic material, is________________?

   A. Modulus of Rigidity
   B. Shear Modulus
   C. Modulus of Elasticity
   D. Both A. and B

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

   A. F/A
   B. F/2A
   C. 3F/2A
   D. 2F/3A

10. A cantilever of length is subjected to a bending moment at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is_________________?

    A. ML/EI
    B. ML/2EI
    C. ML²/2EI
    D. ML²/3EI