Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as________________?

Related Mcqs:

1. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is_________________?

   A. wl3/3EI
   B. wl4/3EI
   C. wl4/8EI
   D. wl4/12EI

2. 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]

3. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be________________?

   A. 2/3
   B. 3/2
   C. 5/8
   D. 8/5

4. The assumption in the theory of bending of beams is_________________?

   A. Material is homogeneous
   B. Material is isotropic
   C. Young’s modulus is same in tension as well as in compression
   D. All the above

5. For beams of uniform strength, if depth is constant______________?

   A. Width b M
   B. Width b M
   C. Width b 3 M
   D. Width b 1/M

6. For beams breadth is constant__________________?

   A. Depth d M
   B. Depth d 3
   C. Depth d
   D. Depth d 1/M

7. At yield point of a test piece, the material__________________?

   A. Obeys Hooke’s law
   B. Behaves in an elastic manner
   C. Regains its original shape on removal of the load
   D. Undergoes plastic deformation

8. A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised___________________?

   A. Steel experiences tensile force
   B. Brass experiences compressive force
   C. Composite beam gets subjected to a couple
   D. All the above

9. Maximum strain theory for the failure of a material at the elastic limit, is known as_______________?

   A. Guest’s or Trecas’ theory
   B. St. Venant’s theory
   C. Rankine’s theory
   D. Haig’s theory

10. The ratio of lateral strain to axial strain of a homogeneous material, is known___________________?

    A. Yield ratio
    B. Hooke’s ratio
    C. Poisson’s ratio
    D. Plastic ratio