Mechanics of Materials & Structures Online Test – Paper 3

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

2. A body having similar properties throughout

3. *The law which states that within elastic limits strain produced is proportional to stress producing it is known as:

4. The stress necessary to initiate yielding is considerably

5. *The total time of collision and restitution of two bodies is called

6. The algebraic sum of the shear flow of a section in any direction must be equal to

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

8. The slope of the curve of S.F. diagram at any section will be equal to

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

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

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

12. The maximum deflection of a beam occurs at

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

14. *The product EI is called

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

16. The number of reaction components at a hinge on rollers support is

17. A brittle material has

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

19. *Strut is a

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

21. The difference between SF values at any two sections will be equal to

22. The rate of change of shear force is called

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

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

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

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

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

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

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

30. The c.g. of a semi-circular arc is

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

32. *The ratio of the intensity of stress in a case of a suddenly loaded to that of gradually applied load is

33. A viscoelastic material

34. *A simply supported beam as shown in the fig. carries 10 t of load. What will be the reaction at point B ?

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

36. 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

37. *A cable subjected to U.D.L. over its entire span assumes a shape of

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

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

40. In a beam, the neutral plane

41. If y is the deflection of the beam, then shear force is

42. *The shear flow in a section can be defined as

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

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

45. Which one is correct if the deflection of a beam is y

46. *BM in a cantilever beam having a span of 1.8m and a uniformly distributed load of 4kg/m

47. If the value of Young's Modulus of elasticity for a material is zero, it implies that the material is

48. 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

49. Which of the following end conditions permits the displacement in any direction and also rotation

50. *Proof resilience is the greatest stored energy at