Mechanics of Materials & Structures Online Test – Paper 3

1. An orthotropic material has

2. Normally, the numerical value of Poisson's is

3. *Fatigue is the failure of a material under:

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

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

6. The stress necessary to initiate yielding is considerably

7. The point of contraflexure occurs in a beam

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

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

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

11. *A tie is a member which

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

13. The maximum shear stress will always occur at

14. *Stress may be defined as force

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

16. The shear force on a beam is proportional to

17. A perfectly elastic body is

18. 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)

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

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

21. 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

22. 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

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

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

25. Along the neutral axis of a simply supported beam

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

27. The value of buckling load is ... than the crushing load in the case of a long column

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

29. Centrifugal force acts at a curve

30. *Toughness is

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

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

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

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

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

36. *Dead load of a member is the

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

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

39. The beam strongest in flexure will have the maximum

40. *As the elastic limit reaches, tensile strain

41. *Young's modulus is the ratio of

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

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

44. The crippling load for column of length 1, with one end fixed and the other end free is

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

46. A body having similar properties throughout

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

48. For a column of given material, the Rankine's constant depends on

49. *The product EI is called

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