Mechanics of Materials & Structures Online Test – Paper 3

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

2. Centrifugal force acts at a curve

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

4. In the case of a simply supported beam subjected to UDL, the maximum shear force occurs at a point

5. A Prismatic bar when subjected to pure bending assumes the shape of

6. Identify the correct relationship that exists among the modulus of elasticity (E), modulus of rigidity (N), and bulk modulus (k) is

7. *Strut is a

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

9. If the Poisson's ratio of a material is 0.25, the ratio of Modulus of Rigidity to the Young's Modulus is

10. *Stress in a beam due to simple bending is

11. *The law which states that within elastic limits strain produced is proportional to stress producing it is known as:

12. The moment of inertia of an area will be least with respect to

13. A member that is subjected to reversible tensile or compressible stress may fail at a stress lower than the ultimate stress of the material. The property of the metal is called

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

15. *Proof resilience is the greatest stored energy at

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

17. *The simple bending equation is

18. The effective length of a column effectively held in position and restrained in direction at one end will be

19. The rate of change of shear force is called

20. *Centrifugal force is given by

21. A brittle material has

22. The shear force on a beam and the displacement are related by

23. *Tensile internal force tends to:

24. *A diagram that shows the variation of axial force

25. The moment of inertia of a rectangular (Bx D) section about its base is

26. What is tenacity?

27. *As the elastic limit reaches, tensile strain

28. Shape of the bending moment diagram for a simply supported beam having a point load at the center is

29. *The shear force and bending moment are related by

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

31. An isotropic material has

32. *Mathematically, strain may be defined as

33. *Which of the following is dimensionless?

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

35. 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

36. *If a cantilever beam of 8m long has a uniformly distributed load of 2KN/m throughout the length and a 10KN point load at the center of the beam, find the moment at the center:

37. *The product EI is called

38. The maximum shear stress will always occur at

39. A perfectly elastic body is

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

41. *The property of a material by which a body returns to its original shape after removal of the force is called

42. Maximum bending moment occurs at the center if the simply supported beam is subjected to

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

44. Shear force diagram for a cantilever carrying a UDL over its whole length is

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

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

47. Find the elongation of a bar if c/s area of the bar is A, length 1, applied load p, modulus of elasticity of material is E

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

49. The point of contraflexure occurs in a beam

50. *The shear force in a concrete beam is assumed to act