Mechanics of Materials & Structures Online Test – Paper 3

1. What is strain energy?

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

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

4. *Find the maximum bending moment in a simply supported beam loaded with a UDL of 2 t/m having a span of 4m

5. *In a simply supported beam subjected to a point load at the center, the maximum bending moment occurs at

6. *Tensile internal force tends to:

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

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

9. *As the elastic limit reaches, tensile strain

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

11. The shear center may be defined as

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

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

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

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

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

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

18. The property of material by which it can be beaten or rolled into plates is called

19. *A beam is said to be loaded in pure bending when

20. *A truss is completely analyzed, when

21. The bending moment in a cable carrying a system of loads will be

22. *Mathematically, strain may be defined as

23. 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

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

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

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

27. *The product EI is called

28. The slenderness ratio of a vertical column of a square section of 2.5 cm sides and an effective length of 1.75 m is

29. A cantilever beam is one which is:

30. Rate of change of bending moment is equal to

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

32. The shear center in the case of a T-beam section is

33. *Strut is a

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

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

36. If magnitude and direction of a load does not change with respect to time, this type of load is called

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

38. The impact tests are used to determine

39. *Maximum deflection of a simply supported beam subjected to concentrated load (w) at the mid-point is

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

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

42. A brittle material will

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

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

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

46. *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:

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

48. A body having similar properties throughout

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