Mechanics of Materials & Structures Online Test – Paper 3

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

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

3. *The slope of an elastic curve at the point of contraflexture

4. In a beam, the neutral plane

5. The equivalent length of column fixed at one end and free at the other end is

6. The stress necessary to initiate yielding is considerably

7. Bending moment diagram of simply supported beam with a point load at the centre of the span is

8. Rate of change of bending moment is equal to

9. *The centre of gravity of a triangle is at the point where three

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

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

12. In a fixed beam, the points of contraflexure,

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

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

15. The maximum deflection of a beam occurs at

16. A viscoelastic material

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

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

19. The stress in the member subjected to a force is

20. *The property of a material by which a body returns to its original shape after removal of the force is called

21. *Centrifugal force is given by

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

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

24. Point of contraflexure is a point where bending moment

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

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

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

28. *A truss is completely analyzed, when

29. *As per the elastic theory of design, the factor of safety is the ratio of

30. *The ratio of the largest load in a test to the original cross-sectional area of the piece is called:

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

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

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

34. *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

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

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

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

38. A Prismatic bar when subjected to pure bending assumes the shape of

39. *Moment of inertia of an object having rectangular section of 'b' as width and 'd' as depth is given by:

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

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

42. If the Poisson's ratio of a material is 0.25, the ratio of Modulus of Rigidity to the Young's Modulus is

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

44. If the elasticity of the material is zero then the material is said to be

45. *Which of the following gives Bulk Modulus?

46. Shear strain is defined as

47. The effective length of a column if both ends are hinged

48. What is tenacity?

49. A cantilever beam of span 4m and carrying a point load of 10 kN located at 3m from the fixed end. Find the BM at the fixed and free end

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