Mechanics of Materials & Structures Online Test – Paper 3

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

2. 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

3. 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

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

5. 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

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

7. The brittle materials have low toughness because they

8. In the case of a simply supported beam subjected to UDL, the maximum shear force occurs at a point

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

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

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

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

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

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

15. The section modulus of a circular section about an axis through its C.G. is

16. 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

17. *The tension in a cable supporting a lift

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

19. The maximum deflection of a beam occurs at

20. *In the case of a fixed beam loaded at a point at its center, the number of points at which BM is zero

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

22. *Centrifugal force is given by

23. The moment of inertia of a triangular section b x h about the base is

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

25. The point of contraflexure occurs in a beam

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

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

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

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

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

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

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

33. *Which of the following gives Bulk Modulus?

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

35. For keeping the stress wholly permissible, the load may be applied to a circular column anywhere within a concentric circle of diameter

36. The variation of the bending moment in the segment of a beam where no external load is present is

37. *Normal strain is defined as

38. Moment of inertia of a rectangular beam bxd is

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

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

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

42. If the length of a simply supported beam carrying a concentrated load at the center is doubled, the deflection at the center will become

43. *The compression test is commonly used for testing

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

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

46. 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

47. A cantilever beam of span 4m and carrying a point load of 10 kN located at 3m from the fixed end. Find the BM at the fixed and free end

48. *The amount of shear force at the maximum bending moment

49. *The magnitude of a shear force at a distance of L/4 from either end of a simply supported beam with load P applied at midspan is equal to:

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