Mechanics of Materials & Structures Online Test – Paper 3

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

2. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length is

3. The shear center may be defined as

4. *A member which does not regain its original shape after the load producing deformation is removed, is said to be:

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

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

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

8. A shear force diagram of a simply supported beam shows constant shear force throughout the span. It is subjected to

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

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

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

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

13. 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

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

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

16. If all the dimensions of a bar are increased in the proportion n:1, the proportion with which the maximum stress produced in the prismatic bar by its own weight will increase in the ratio

17. *Stress in a beam due to simple bending is

18. *Which of the following is dimensionless?

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

20. *Which of the following gives Modulus of Elasticity

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

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

23. *The maximum bending moment in a simply supported beam UDL is applied

24. A body having similar properties throughout

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

26. *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:

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

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

29. An isotropic material has

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

31. *Centrifugal force is given by

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

33. *Strut is a

34. *Mathematically, strain may be defined as

35. *The maximum bending moment caused by a moving load on a simply supported beam is

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

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

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

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

40. The limit of proportionality depends upon

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

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

43. Find the maximum SF induced in a cantilever beam subjected to a point load of 10 KN and a length of the beam is 10 m. The load is located at a distance of 3 m from the free end

44. *Tensile internal force tends to:

45. *The law "Stress is proportional to strain within certain limits" is formulated by

46. The section modulus of a rectangular section is proportional to

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

48. The number of points of contraflexture in a simply supported beam carrying udl is

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

50. If α is the coefficient of linear expansion, T is the rise in temperature, then thermal stress is given by