Mechanics of Materials & Structures Online Test – Paper 3

1. A viscoelastic material

2. The crippling load for a column with both ends hinged is

3. An isotropic material has

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

5. *The bending moment at a section tends to bend or deflect the beam and internal stresses resist its bending. The resistance offered by the internal stress to the bending, is called:

6. *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:

7. 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)

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

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

10. An orthotropic material has

11. *The relation between the radius of curvature (R), bending moment (M), and flexural rigidity (EI) is given by

12. The brittle materials have low toughness because they

13. Shear strain is defined as

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

15. The limit of proportionality depends upon

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

17. *If the shear force along a section of a beam is zero, the bending moment at the section is:

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

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

20. *Dead load of a member is the

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

22. The bending moment diagram for a cantilever beam subjected to a moment at the end of the beam would be

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

24. The diagram showing the variation of BM along the span of the beam is called

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

26. The bending moment acting on the plane of an element will cause the following type of stress on the plane

27. The beam strongest in flexure will have the maximum

28. *A point where SF is zero, BM is

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

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

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

32. *Hooke's law holds good up to:

33. Moment of inertia of a rectangular beam bxd is

34. 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

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

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

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

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

39. The shear force on a beam and the displacement are related by

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

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

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

43. Load carrying capacity of fixed beam is

44. Buckling load for a given column depends upon

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

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

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

48. The square root of the ratio of moment of inertia and cross-section area of the member is known as

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

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