Mechanics of Materials & Structures Online Test – Paper 3

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

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

3. *The product EI is called

4. The maximum deflection of a beam occurs at

5. *Toughness is

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

7. 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

8. A cantilever beam is one which is:

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

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

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

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

13. A body having similar properties throughout

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

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

16. Point of contraflexure is a point where bending moment

17. The shear center may be defined as

18. The phenomenon of slow growth of strain under steady tensile stress, i.e., increasing with time, is called

19. 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

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

21. *Proof resilience is the greatest stored energy at

22. *If a beam is loaded transversely, the maximum compressive stress develops on

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

24. *The S.I. unit of the modulus of elasticity is

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

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

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

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

29. The diagram showing the variation of axial load along the span is called

30. A beam of uniform strength will have at every cross-section the same

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

32. *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:

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

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

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

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

37. Find the slenderness ratio of the column of M.I. = 10000cm4, Area =100cm^2 & effective length =3.0m

38. *Which of the following gives Bulk Modulus?

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

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

41. The limit of proportionality depends upon

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

43. In a beam, the neutral plane

44. *The inclined member carrying compressive load in the case of frames and trusses is

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

46. In the case of an H section, the maximum shear stress will occur at

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

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

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

50. The beam strongest in flexure will have the maximum