Mechanics of Materials & Structures Online Test – Paper 3

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

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

3. *The tension in a cable supporting a lift

4. The slenderness ratio of a vertical column of a square section of 2.5 cm sides and an effective length of 1.75 m is

5. 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

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

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

8. Along the neutral axis of a simply supported beam

9. *Thrust is induced in the case of

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

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

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

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

14. *Which of the following is dimensionless?

15. Longitudinal cracks observed in timber beams are due to

16. *Determinate beam can be analyzed with the help of

17. The slenderness ratio of a vertical column of square cross-section of 10 cm side and 500 cm long is

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

19. Load carrying capacity of fixed beam is

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

21. The maximum deflection in a cantilever beam carrying a uniformly distributed load (w) over spans is (Where L is span of beam, W is total load and EI is flexural rigidity)

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

23. *Young's modulus is the ratio of

24. The maximum deflection of a beam occurs at

25. The difference between SF values at any two sections will be equal to

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

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

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

29. *Stress may be defined as force

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

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

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

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

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

35. The maximum bending moment in a simply supported beam loaded with a UDL of w/m having span l is

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

37. *As the elastic limit reaches, tensile strain

38. The ratio of moment of inertia of a square section to that of a circular section for a given depth is given by

39. Buckling load for a given column depends upon

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

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

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

43. The stress due to temperature change in a member depends on

44. The shear center may be defined as

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

46. Which one is correct if the deflection of a beam is y

47. 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

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

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

50. The relation between deflection (y) and bending moment (M) is