Mechanics of Materials & Structures Online Test – Paper 3

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

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

3. The actual breaking stress of a ductile material from a tension test will be

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

5. The impact tests are used to determine

6. Load carrying capacity of fixed beam is

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

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

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

10. Shear force diagram for a cantilever carrying a UDL over its whole length is

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

12. *The unit failure stress is taken as :

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

14. A column that fails primarily due to buckling is known as

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

16. A brittle material has

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

18. *A beam is said to be of uniform strength if

19. The maximum bending moment caused by a large number of equally spaced identical loads on a simply supported beam is (W = wL)

20. *The critical bending moment caused in a fixed end beam loaded with a uniformly distributed load (W = wL) throughout is

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

22. A cantilever beam is the one which is supported with

23. Centrifugal force acts at a curve

24. If a constant section is subjected to a uniform/ pure bending moment throughout, its length bends to

25. The maximum bending moment caused by a moving load on a fixed-end beam occurs

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

27. Moment of inertia of a rectangular beam bxd is

28. *Strut is a

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

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

31. *Load required to produce unit deflection is called

32. A section of a beam is said to be in pure bending if it is subjected to

33. At the point of application of concentrated load on a beam, there is

34. Buckling load for a given column depends upon

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

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

37. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length is

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

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

40. 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

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

42. *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:

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

44. *The ratio of change in volume to the original volume is called:

45. *Mathematically, strain may be defined as

46. *Toughness is

47. Identify the correct relationship that exists among the modulus of elasticity (E), modulus of rigidity (N), and bulk modulus (k) is

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 diagram showing the variation of axial load along the span is called

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