Mechanics of Materials & Structures Online Test – Paper 3

1. The stress necessary to initiate yielding is considerably

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

3. The region of c/s of a column in which compressive load may be applied without producing tensile load is known as

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

5. The maximum deflection in a cantilever beam carrying a concentrated load 'w' at the free end is (Where L is span of bean, W is total load and EI is flexural rigidity)

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

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

8. The rate of change of shear force is called

9. Maximum bending moment occurs at the center if the simply supported beam is subjected to

10. A cantilever beam is one which is:

11. *Maximum bending moment occurs where

12. *Short column taking maximum load having equal section

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

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

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

16. The radius of gyration of a rectangular section is not proportional to

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

18. The point of contraflexure occurs in a beam

19. *The variation of the bending moment in the segment of a beam where the load is uniformly distributed is

20. The safe value of stress below which the material will not fail when subjected to a reversal of stress is known as

21. A column that fails primarily due to direct stress is called

22. *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

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

24. *Dead load of a member is the

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

26. A brittle material has

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

28. The difference between BM values at any two sections will be equal to

29. Load carrying capacity of fixed beam is

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

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

32. *Thrust is induced in the case of

33. A body having similar properties throughout

34. The reaction at end A of the beam shown is

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

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

37. *Strut is a

38. Which of the following materials will have the highest Young's Modulus?

39. A perfectly elastic body is

40. The ratio of the effective length of a column and the minimum radius of gyration of its cross-sectional area is known as

41. The strain energy stored by a member when strained within the elastic limit is known as

42. *Which of the following is dimensionless?

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

44. A beam is supported over three rollers lying in the same plane. The beam is stable for

45. The expression EI(d^4y/dx^4) at any section for a beam is equal to

46. *A truss is completely analyzed, when

47. *As the elastic limit reaches, tensile strain

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

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

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