Mechanics of Materials & Structures Online Test – Paper 3

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

2. *Proof resilience is the greatest stored energy at

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

4. The stress necessary to initiate yielding is considerably

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

6. In a beam where shear force is maximum, the bending moment will be

7. A viscoelastic material

8. The stress in the member subjected to a force is

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

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

11. An isotropic material has

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

13. Find the maximum BM induced in a simply supported beam if the beam is subjected to a point load of 4 KN at the center of the beam and the span of the beam is 4 m

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

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

16. Longitudinal cracks observed in timber beams are due to

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

18. If all the dimensions of a bar are increased in the proportion n:1, the proportion with which the maximum stress produced in the prismatic bar by its own weight will increase in the ratio

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

20. *Maximum bending moment occurs where

21. *The maximum bending moment caused by a moving load on a simply supported beam is

22. *The ratio of the largest load in a test to the original cross-sectional area of the piece is called:

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

24. The shear force on a beam is proportional to

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

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

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

28. *A cable subjected to U.D.L. over its entire span assumes a shape of

29. 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

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

31. The beam strongest in flexure will have the maximum

32. The property of material by which it can be drawn, due to tension, to a smaller section, is called

33. The method of increasing fatigue resistance by overstressing the metal by successively increasing the loading is known as

34. The moment of inertia of a triangular section b x h about the c-g is

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

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

37. *Which of the following gives Modulus of Elasticity

38. Which of the following gives Modulus of Rigidity

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

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

41. *The maximum deflection of a simply supported beam subjected to a concentrated load (W) at the midpoint is

42. The square root of the ratio of moment of inertia and cross-section area of the member is known as

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

44. Shear strain is defined as

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

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

47. The point of contraflexure occurs in a beam

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

49. The maximum deflection of a beam occurs at

50. A perfectly elastic body is