Mechanics of Materials & Structures Online Test – Paper 3

1. The impact tests are used to determine

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

3. 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

4. *Which of the following sections is the most efficient in carrying bending moments

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

6. *The rate of change of shear force is called

7. If the elasticity of the material is zero then the material is said to be

8. 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

9. For a column of given material, the Rankine's constant depends on

10. In a beam, the neutral plane

11. The maximum deflection of a beam occurs at

12. Load carrying capacity of fixed beam is

13. *Moment of inertia of an object having rectangular section of 'b' as width and 'd' as depth is given by:

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

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

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

17. *Hooke's law holds good up to:

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

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

20. *The critical bending moment caused in a fixed end beam loaded with a uniformly distributed load (W = wL) throughout is

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

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

23. A brittle material will

24. The shear force on a beam is proportional to

25. *Centre of gravity of a semi-circle is... above the base AB (Dia.)

26. A viscoelastic material

27. An orthotropic material has

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

29. What is tenacity?

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

31. Euler's formula for a column of length 1, with one end fixed and other hinged is

32. Buckling load for a given column depends upon

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

34. Effective length of column fixed at one end and hinged at the other end is

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

36. *Load required to produce unit deflection is called

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

38. *Normal strain is defined as

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

40. *As per the elastic theory of design, the factor of safety is the ratio of

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

42. Find the maximum BM induced in a cantilever beam subjected to a point load of 10 KN and a length of the beam is 10 m. The load is located at a distance of 3 m from the free end:-

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

44. *The velocity of a moving body is:

45. The strain energy stored by a member when strained within the elastic limit is known as

46. *A point where SF is zero, BM is

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

48. In an I section, almost all the shear force is taken by

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

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