Mechanics of Materials & Structures Online Test – Paper 3

1. *Maximum deflection of a simply supported beam subjected to concentrated load (w) at the mid-point is

2. The reaction at end A of the beam shown is

3. An isotropic material has

4. *The unit failure stress is taken as :

5. Normally, the numerical value of Poisson's is

6. The radius of gyration of a rectangular section is not proportional to

7. Buckling load for a given column depends upon

8. The zone between the elastic limit and proportional limit on the elastic curve of an elastic material is known as

9. *In a simply supported beam with span (L) having a triangular load with its intensity 0 at both ends and W at center. The maximum BM will be

10. The maximum bending moment caused on a simply supported beam subjected to two equal concentrated loads (W/2) spaced at an equal distance (L/3) over the span is

11. The effective length of a column if both ends are hinged

12. In simple bending theory, the assumption that a plane section before bending remains plane after bending implies that

13. The section modulus of a circular section about an axis through its C.G. is

14. Along the neutral axis of a simply supported beam

15. Centrifugal force acts away from the center of the path while centripetal force

16. The variation of the bending moment in the portion of the beam carrying a linearly varying load is

17. If a material has identical properties in all directions, it is said to be

18. The shear center may be defined as

19. The maximum shear stress will always occur at

20. The shear force on a beam is proportional to

21. *As the elastic limit reaches, tensile strain

22. The number of points of contraflexture in a simply supported beam carrying udl is

23. A beam fixed at both ends with a central load W in the middle will have zero bending moment

24. The diagram showing the variation of axial load along the span is called

25. Strain energy of a member may be defined as work done on it

26. If the value of Young's Modulus of elasticity for a material is zero, it implies that the material is

27. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length is

28. *A beam is said to be of uniform strength if

29. The number of reaction components at a hinged end of a general loading is

30. *The S.I. unit of the modulus of elasticity is

31. *The variation of the bending moment in the segment of a beam where the load is uniformly distributed is

32. The stress in the member subjected to a force is

33. At the point of application of concentrated load on a beam, there is

34. *The magnitude of a shear force at a distance of L/4 from either end of a simply supported beam with load P applied at midspan is equal to:

35. In a beam, the neutral plane

36. *The shear flow in a section can be defined as

37. The bending moment acting on the plane of an element will cause the following type of stress on the plane

38. In a continuous beam, the point where bending moment changes sign is called

39. The number of reaction components at a hinge on rollers support is

40. *Maximum bending moment occurs where

41. Permanent set is

42. The property of material by which it can be drawn, due to tension, to a smaller section, is called

43. Moment of inertia of a rectangular beam bxd is

44. *"A simply supported beam of span L carries a uniformly distributed load W. The maximum bending moment, M is:

45. A beam of uniform strength will have at every cross-section the same

46. A shear force diagram of a simply supported beam shows constant shear force throughout the span. It is subjected to

47. The bending moment diagram for a cantilever beam subjected to a moment at the end of the beam would be

48. The phenomenon of slow growth of strain under steady tensile stress, i.e., increasing with time, is called

49. The difference between BM values at any two sections will be equal to

50. For a beam of uniform strength if its depth is maintained constant then its width will vary in proportion to