Mechanics of Materials & Structures Online Test – Paper 3

1. A simply supported beam of length I carries a load varying uniformly from zero at the left end to the maximum at the right end. The maximum bending moment occurs at a distance of

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

3. For a beam of uniform strength if its depth is maintained constant then its width will vary in proportion to

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

5. *Bending moment diagram of a simply supported beam having a uniformly distributed load is

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

7. Find the maximum SF 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

8. *Load required to produce unit deflection is called

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

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

11. 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)

12. What is strain energy?

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

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

15. 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

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

17. The maximum deflection of a simply supported beam subjected to a uniformly distributed load (w) over the span is

18. The effective length of a column if both ends are hinged

19. *The centre of gravity of a triangle is at the point where three

20. 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

21. *If a beam is loaded transversely, the maximum compressive stress develops on

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

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

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

25. 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

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

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

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

29. A perfectly elastic body is

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

31. Which of the following gives Modulus of Rigidity

32. A beam simply supported at ends is subjected to load. The maximum bending moment is located where

33. In a continuous beam, the point where bending moment changes sign is called

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

35. *The bending moment at a section tends to bend or deflect the beam and internal stresses resist its bending. The resistance offered by the internal stress to the bending, is called:

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

37. *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:

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

39. The c.g. of a semi-circular arc is

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

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

42. *Young's modulus is the ratio of

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

44. *Which of the following gives Bulk Modulus?

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

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

47. *The tension in a cable supporting a lift

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

49. Load carrying capacity of fixed beam is

50. *When the equal and opposite forces are applied to a body, tending to elongate it, then the stress produced is called