Mechanics of Materials & Structures Online Test – Paper 3

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

2. *A member with a cross section of a mm^2 is subjected to a force of P N. It is L mm long and of Young's Modulus, E N/mm^2. The strain will be

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

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

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

6. The impact tests are used to determine

7. The difference in ordinate of the shear force between any two sections is equal to the area under

8. A Prismatic bar when subjected to pure bending assumes the shape of

9. *The tension in a cable supporting a lift

10. *The product EI is called

11. A long vertical member subjected to an axial compressive load is called

12. The shear force on a beam is proportional to

13. Which of the following is a relatively ductile material?

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

15. *The rate of change of shear force is called

16. The beam strongest in flexure will have the maximum

17. The moment of inertia of an area will be least with respect to

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

19. What is tenacity?

20. The effective length of a column effectively held in position and restrained in direction at one end will be

21. Centrifugal force acts at a curve

22. *A truss is completely analyzed, when

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

24. 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

25. Load carrying capacity of fixed beam is

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

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

28. *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:

29. A brittle material has

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

31. A brittle material will

32. The stress necessary to initiate yielding is considerably

33. *In a simply supported beam subjected to a point load at the center, the maximum bending moment occurs at

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

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

36. A body having similar properties throughout

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

38. A viscoelastic material

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

40. *Mathematically, strain may be defined as

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

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

43. In a simply supported beam with span, L subjected to a point load, W at the center. Find the maximum bending moment induced in the beam

44. The variation of the bending moment in the portion of the beam carrying a linearly varying load is

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

46. 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

47. The brittle materials have low toughness because they

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

49. For a column, with both ends fixed, the crippling load will be equal to

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