Mechanics of Materials & Structures Online Test – Paper 3

1. *Centrifugal force is given by

2. *The Young's Modulus of elasticity is defined as the ratio of stress & strain within the

3. The crippling load for a column with both ends hinged is

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

5. An orthotropic material has

6. *A tie is a member which

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

8. A body having similar properties throughout

9. Bending moment diagram of simply supported beam with a point load at the centre of the span is

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

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

12. Find the slenderness ratio of the column of M.I. = 10000cm4, Area =100cm^2 & effective length =3.0m

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

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

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

16. *The forces which meet at one point, but their lines of action do not lie in a plane, are called:

17. Which of the following end conditions permits the displacement in any direction and also rotation

18. 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

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

20. *A beam is said to be loaded in pure bending when

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

22. *The ratio of the intensity of stress in a case of a suddenly loaded to that of gradually applied load is

23. The value of Poisson's ratio always remains

24. *A simply supported beam as shown in the fig. carries 10 t of load. What will be the reaction at point B ?

25. *A member which does not regain its original shape after the load producing deformation is removed, is said to be:

26. If a constant section is subjected to a uniform/ pure bending moment throughout, its length bends to

27. 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)

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

29. *Maximum bending moment occurs where

30. A brittle material will

31. *If the shear force along a section of a beam is zero, the bending moment at the section is:

32. If the stress produced by a prismatic bar is equal to the working stress, the area of the cross-section of the prismatic bar becomes

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

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

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

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

37. The equivalent length of column fixed at one end and free at the other end is

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

39. Centrifugal force acts at a curve

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

41. *The ratio of change in volume to the original volume is called:

42. The maximum deflection of a beam occurs at

43. The ratio of the effective length of a column and the minimum radius of gyration of its cross-sectional area is known as

44. A brittle material has

45. According to Hook's law, which one is correct?

46. A viscoelastic material

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

48. The shear center in the case of a T-beam section is

49. Point of contraflexure is a point where bending moment

50. *Normal strain is defined as