Mechanics of Materials & Structures Online Test – Paper 3

1. Which of the following gives Modulus of Rigidity

2. A column that fails primarily due to direct stress is called

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

4. *Load required to produce unit deflection is called

5. *The stress at which the extension of a material takes place more quickly as compared to the increase in load is called

6. In the case of an H section, the maximum shear stress will occur at

7. *The total time of collision and restitution of two bodies is called

8. The algebraic sum of the shear flow of a section in any direction must be equal to

9. Permanent set is

10. If α is the coefficient of linear expansion, T is the rise in temperature, then thermal stress is given by

11. *The relation between the radius of curvature (R), bending moment (M), and flexural rigidity (EI) is given by

12. What is tenacity?

13. If y is the deflection of the beam, then shear force is

14. Shear strain is defined as

15. For a column, with both ends fixed, the crippling load will be equal to

16. The safe value of stress below which the material will not fail when subjected to a reversal of stress is known as

17. The difference in ordinate of the shear force between any two sections is equal to the area under

18. The beam strongest in flexure will have the maximum

19. If a cantilever beam carries a uniformly distributed load over its entire length, then the shape of the shear force diagram and bending moment diagram respectively are

20. If magnitude and direction of a load does not change with respect to time, this type of load is called

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

22. *As the elastic limit reaches, tensile strain

23. Which of the following materials will have the highest Young's Modulus?

24. How does Young's Modulus vary with an increase in temperature?

25. In a simply supported beam with span, L subjected to a point load, W at the center. Find the maximum bending moment induced in the beam

26. Which of the following gives Poisson's ratio?

27. An isotropic material has

28. The property of material by which it can be beaten or rolled into plates is called

29. In a fixed beam, the points of contraflexure,

30. *Strut is a

31. *The slope of an elastic curve at the point of contraflexture

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

33. The maximum bending moment caused by a large number of equally spaced identical loads on a simply supported beam is (W = wL)

34. *Compression members always tend to buckle in the direction of the

35. A section of a beam is said to be in pure bending if it is subjected to

36. The variation of the bending moment in the segment of a beam where no external load is present is

37. The limit of proportionality depends upon

38. The point of contraflexure occurs in a beam

39. Rate of change of bending moment is equal to

40. The maximum deflection in a cantilever beam carrying a concentrated load 'w' at the free end is (Where L is span of bean, W is total load and EI is flexural rigidity)

41. The maximum number of transverse shear forces possible at one end of an element of a plane truss are

42. A cantilever beam is the one which is supported with

43. A beam simply supported at ends is subjected to load. The maximum bending moment is located where

44. *In a simply supported beam subjected to a point load at the center, the maximum bending moment occurs at

45. The bending moment in a cable carrying a system of loads will be

46. The section modulus of a rectangular section is proportional to

47. *"If a rod is simultaneously pulled at both of its ends, it will be a case of:

48. An orthotropic material has

49. *Which of the following is dimensionless?

50. The region of c/s of a column in which compressive load may be applied without producing tensile load is known as