If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good_______________?

Related Mcqs:

1. A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson’s ratio is 0.25, the change in the volume of the bar is_________________?

   A. 1.125 cm3
   B. 2.125 cm3
   C. 3.125 cm3
   D. 4.125 cm2

2. A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm2, the deflection of the free end, is________________?

   A. 2 mm
   B. 3 mm
   C. 4 mm
   D. 5 mm

3. 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

4. A road of uniform cross-section A and length L force P. The Young’s Modulus E of the material, is_________________?

   A. E = /A. L
   B. E =/P. L
   C. E = P. L/
   D. E = P. A/

5. section modulus of a square section of side B and that of a circular section of The ratio of the diameter D, is___________________?

   A. 2 /15
   B. 3 /16
   C. 3 /8
   D. /16

6. 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

7. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is_____________?

   A. WL²/2EI

   B. WL²/3EI

   C. WL3/2EI

   D. WL3/3EI

8. The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is______________?

   A. WL3/3EL
   B. WL3/8EL
   C. WL3/24EL
   D. WL3/48EL

9. A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber)_________________?

   A. BD² + mbd²)/6D]
   B. BD3 + mbd3)/6D]
   C. BD² + mbd3)/4D]
   D. BD² + mbd²)/4D]

10. At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by_________________?

    A. Depth of the section
    B. Depth of the neutral axis
    C. Maximum tensile stress at the section
    D. Maximum compressive stress at the section